1
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Shi Y, Zhang K, Dong CL, Nga TTT, Wang M, Wei D, Wang J, Wang Y, Shen S. Polyacrylate modified Cu electrode for selective electrochemical CO 2 reduction towards multicarbon products. Sci Bull (Beijing) 2024; 69:2395-2404. [PMID: 38910107 DOI: 10.1016/j.scib.2024.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/01/2024] [Accepted: 06/07/2024] [Indexed: 06/25/2024]
Abstract
Highly selective production of value-added multicarbon (C2+) products via electrochemical CO2 reduction reaction (eCO2RR) on polycrystalline copper (Cu) remains challenging. Herein, the facile surface modification using poly (α-ethyl cyanoacrylate) (PECA) is presented to greatly enhance the C2+ selectivity for eCO2RR over polycrystalline Cu, with Faradaic efficiency (FE) towards C2+ products increased from 30.1% for the Cu electrode to 72.6% for the obtained Cu-PECA electrode at -1.1 V vs. reversible hydrogen electrode (RHE). Given the well-determined FEs towards C2+ products, the partial current densities for C2+ production could be estimated to be -145.4 mA cm-2 for the Cu-PECA electrode at -0.9 V vs. RHE in a homemade flow cell. In-situ spectral characterizations and theoretical calculations reveal that PECA featured with electron-accepting -C≡N and -COOR groups decorated onto the Cu electrode could inhibit the adsorption of *H intermediates and stabilize the *CO intermediates, given the redistributed interfacial electron density and the raised energy level of d-band center (Ed) of Cu active sites, thus facilitating the C-C coupling and then the C2+ selective production. This study is believed to be guidable to the modification of electrocatalysts and electrodes with polymers to steer the surface adsorption behaviors of reaction intermediates to realize practical eCO2RR towards value-added C2+ products with high activity and selectivity.
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Affiliation(s)
- Yuchuan Shi
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Kaini Zhang
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Chung-Li Dong
- Department of Physics, Tamkang University, New Taipei City 25137, China
| | - Ta Thi Thuy Nga
- Department of Physics, Tamkang University, New Taipei City 25137, China
| | - Miao Wang
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Daixing Wei
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jialin Wang
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yiqing Wang
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Shaohua Shen
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
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Ding C, Yang L, Lu X, Chi H, Yang Y, Yuan J, Wang X, Wu X, Zhang Y, Zhou Y, Zou Z. Outstanding CO 2 Photoreduction in Single-Atom Thulium Modified Carbon Nitride. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2406329. [PMID: 39120492 DOI: 10.1002/advs.202406329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2024] [Revised: 07/14/2024] [Indexed: 08/10/2024]
Abstract
CO2 reduction photocatalysts are favorable for obtaining renewable energy. Enriched active sites and effective photogenerated-carriers separation are keys for improving CO2 photo-reduction. A thulium (Tm) single atom tailoring strategy introducing carbon vacancies in porous tubular graphitic carbon nitride (g-C3N4) surpassing the ever-reported g-C3N4 based photocatalysts, with 199.47 µmol g-1 h-1 CO yield, 96.8% CO selectivity, 0.84% apparent quantum efficiency and excellent photocatalytic stability, is implemented in this work. Results revealed that in-plane Tm sites and interlayer-bridged Tm-N charge transfer channels significantly enhanced the aggregation/transfer of photogenerated electrons thus promoting CO2 adsorption/activation and contributing to *COOH intermediates formation. Meanwhile, Tm atoms and carbon vacancies both benefit for rich active sites and enhanced photogenerated-charge separation, thus optimizing reaction pathway and leading to excellent CO2 photo-reduction. This work not only provides guidelines for CO2 photo-reduction catalysts design but also offers mechanistic insights into single-atom based photocatalysts for solar fuel production.
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Affiliation(s)
- Cheng Ding
- Key Laboratory of Modern Acoustics (MOE), Institute of Acoustics, School of Physics, National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Eco-Materials and Renewable Energy Research Center (ERERC), Jiangsu Key Laboratory for Nano Technology, Nanjing University, Nanjing, Jiangsu, 210093, P. R. China
| | - Liuqing Yang
- College of Science, Nanjing Forestry University, Nanjing, Jiangsu, 210037, P. R. China
- Kunshan Sunlaite New Energy Co. Ltd., Kunshan Innovation Institute of Nanjing University, No. 1666, South Zuchongzhi Road, Kunshan, Jiangsu, 215347, P. R. China
| | - Xinxin Lu
- PetroChina Shenzhen New Energy Research Institute, Shenzhen, Guangdong, 518052, P. R. China
| | - Haoqiang Chi
- Key Laboratory of Modern Acoustics (MOE), Institute of Acoustics, School of Physics, National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Eco-Materials and Renewable Energy Research Center (ERERC), Jiangsu Key Laboratory for Nano Technology, Nanjing University, Nanjing, Jiangsu, 210093, P. R. China
| | - Yong Yang
- Key Laboratory of Soft Chemistry and Functional Materials (MOE), Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, P. R. China
| | - Junyang Yuan
- Key Laboratory of Modern Acoustics (MOE), Institute of Acoustics, School of Physics, National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Eco-Materials and Renewable Energy Research Center (ERERC), Jiangsu Key Laboratory for Nano Technology, Nanjing University, Nanjing, Jiangsu, 210093, P. R. China
| | - Xiaoyong Wang
- Key Laboratory of Modern Acoustics (MOE), Institute of Acoustics, School of Physics, National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Eco-Materials and Renewable Energy Research Center (ERERC), Jiangsu Key Laboratory for Nano Technology, Nanjing University, Nanjing, Jiangsu, 210093, P. R. China
| | - Xinglong Wu
- Key Laboratory of Modern Acoustics (MOE), Institute of Acoustics, School of Physics, National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Eco-Materials and Renewable Energy Research Center (ERERC), Jiangsu Key Laboratory for Nano Technology, Nanjing University, Nanjing, Jiangsu, 210093, P. R. China
| | - Yongcai Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225009, P. R. China
| | - Yong Zhou
- Key Laboratory of Modern Acoustics (MOE), Institute of Acoustics, School of Physics, National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Eco-Materials and Renewable Energy Research Center (ERERC), Jiangsu Key Laboratory for Nano Technology, Nanjing University, Nanjing, Jiangsu, 210093, P. R. China
- School of Science and Engineering, The Chinese University of Hongkong (Shenzhen), Shenzhen, Guangdong, 518172, P. R. China
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui, 241000, P. R. China
| | - Zhigang Zou
- Key Laboratory of Modern Acoustics (MOE), Institute of Acoustics, School of Physics, National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Eco-Materials and Renewable Energy Research Center (ERERC), Jiangsu Key Laboratory for Nano Technology, Nanjing University, Nanjing, Jiangsu, 210093, P. R. China
- School of Science and Engineering, The Chinese University of Hongkong (Shenzhen), Shenzhen, Guangdong, 518172, P. R. China
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3
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Gao Z, He Y, Xiong K. Two-dimensional Janus monolayers SPtAZ 2 (A = Si and Ge; Z = N, P, and As): insight into their photocatalytic properties via first-principles calculations. Phys Chem Chem Phys 2024; 26:21173-21185. [PMID: 39072651 DOI: 10.1039/d4cp01838a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
As a derivative of the two-dimensional material family, two-dimensional Janus materials have garnered widespread attention in recent years. Consequently, in this work, we systematically investigated the stability, electronic properties, photocatalytic properties, optical properties, and carrier mobility of SPtAZ2 (A = Si and Ge; Z = N, P, and As) monolayers using first-principles calculations. In the equilibrium state, we identified four stable structures that exhibited the properties of indirect band gap semiconductors using the HSE06 hybrid functional. Through the exploration of the photocatalytic and optical properties of these four stable structures, we observed that SPtSiN2, SPtSiP2, and SPtGeAs2 monolayers possess favorable band edge positions, high solar-to-hydrogen efficiency (up to 30.74%), and light absorption efficiency, thus endowing these three structures with commendable photocatalytic and light absorption performance. We additionally calculated the carrier mobility of these three structures and identified significant differences in electron and hole mobilities in the same direction, facilitating the effective separation of electrons and holes. Finally, we explored the effects of biaxial strain on the electronic properties, photocatalysis, and light absorption of stable SPtAZ2 monolayers. Our research results not only expand the 2D Janus material family, but also successfully predict a type of photocatalyst capable of utilizing visible light for overall water splitting.
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Affiliation(s)
- Zhen Gao
- Department of Physics, Yunnan University, Kunming 650091, People's Republic of China.
| | - Yao He
- Department of Physics, Yunnan University, Kunming 650091, People's Republic of China.
| | - Kai Xiong
- Materials Genome Institute, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China.
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4
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Gao Q, Qi W, Li Y, Wei Y, Wu Y, Liang X, Zhang Y, Hu Y, Wang P, Chen Q, Chen X, Zhu Y. Regulating Local Electron Density of Cyano Sites in Graphitic Nitride Carbon by Giant Internal Electric Field for Efficient CO 2 Photoreduction to Hydrocarbons. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2404822. [PMID: 39096107 DOI: 10.1002/smll.202404822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/22/2024] [Indexed: 08/04/2024]
Abstract
Selective photocatalytic CO2 reduction to high-value hydrocarbons using graphitic carbon nitride (g-C3N4) polymer holds great practical significance. Herein, the cyano-functionalized g-C3N4 (CN-g-C3N4) with a high local electron density site is successfully constructed for selective CO2 photoreduction to CH4 and C2H4. Wherein the potent electron-withdrawing cyano group induces a giant internal electric field in CN-g-C3N4, significantly boosting the directional migration of photogenerated electrons and concentrating them nearby. Thereby, a high local electron density site around its cyano group is created. Moreover, this structure can also effectively promote the adsorption and activation of CO2 while firmly anchoring *CO intermediates, facilitating their subsequent hydrogenation and coupling reactions. Consequently, using H2O as a reducing agent, CN-g-C3N4 achieves efficient and selective photocatalytic CO2 reduction to CH4 and C2H4 activity, with maximum rates of 6.64 and 1.35 µmol g-1 h-1, respectively, 69.3 and 53.8 times higher than bulk g-C3N4 and g-C3N4 nanosheets. In short, this work illustrates the importance of constructing a reduction site with high local electron density for efficient and selective CO2 photoreduction to hydrocarbons.
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Affiliation(s)
- Qiong Gao
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Wenjie Qi
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, P. R. China
| | - Yuxin Li
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Yu Wei
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Yongpeng Wu
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Xiaoqian Liang
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Yuan Zhang
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Yuzhu Hu
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Peng Wang
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Qian Chen
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Xianjie Chen
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Yongfa Zhu
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
- Institute for Advanced Study, Chengdu University, Chengdu, 610106, P. R. China
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5
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Mondal S, Naor T, Volokh M, Stone D, Albero J, Levi A, Vakahi A, García H, Banin U, Shalom M. NC Meets CN: Porous Photoanodes with Polymeric Carbon Nitride/ZnSe Nanocrystal Heterojunctions for Photoelectrochemical Applications. ACS APPLIED MATERIALS & INTERFACES 2024; 16:38153-38162. [PMID: 39010305 DOI: 10.1021/acsami.4c07582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/17/2024]
Abstract
The utilization of photoelectrochemical cells (PEC) for converting solar energy into fuels (e.g., hydrogen) is a promising method for sustainable energy generation. We demonstrate a strategy to enhance the performance of PEC devices by integrating surface-functionalized zinc selenide (ZnSe) semiconductor nanocrystals (NCs) into porous polymeric carbon nitride (CN) matrices to form a uniformly distributed blend of NCs within the CN layer via electrophoretic deposition (EPD). The achieved type II heterojunction at the CN/NC interface exhibits intimate contact between the NCs and the CN backbone since it does not contain insulating binders. This configuration promotes efficient charge separation and suppresses carrier recombination. The reported CN/NC composite structure serves as a photoanode, demonstrating a photocurrent density of 160 ± 8 μA cm-2 at 1.23 V vs a reversible hydrogen electrode (RHE), 75% higher compared with a CN-based photoelectrode, for approximately 12 h. Spectral and photoelectrochemical analyses reveal extended photoresponse, reduced charge recombination, and successful charge transfer at the formed heterojunction; these properties result in enhanced PEC oxygen production activity with a Faradaic efficiency of 87%. The methodology allows the integration of high-quality colloidal NCs within porous CN-based photoelectrodes and provides numerous knobs for tuning the functionality of the composite systems, thus showing promise for achieving enhanced solar fuel production using PEC.
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Affiliation(s)
- Sanjit Mondal
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Tom Naor
- The Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Michael Volokh
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - David Stone
- The Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Josep Albero
- Instituto Universitario de Tecnología Química CSIC-UPV, Universitat Politècnica de València, València 46022, Spain
| | - Adar Levi
- The Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Atzmon Vakahi
- The Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Hermenegildo García
- Instituto Universitario de Tecnología Química CSIC-UPV, Universitat Politècnica de València, València 46022, Spain
| | - Uri Banin
- The Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Menny Shalom
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
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6
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Parasuraman B, Kandasamy B, Vasudevan V, Thangavelu P. Enhanced dye degradation performance enabled by swift electron mediator decorated WO 3/g-C 3N 4/V 2O 5 hybrid nanomaterials. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:46591-46601. [PMID: 37314553 DOI: 10.1007/s11356-023-28200-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 06/06/2023] [Indexed: 06/15/2023]
Abstract
Organic pollutants such as dyes and pharmaceutical drugs have become a significant environmental problem due to their unrestricted discharge, especially in water bodies. As a result, an economically viable and environmentally friendly approach to their degradation in water bodies is required and the incorporation of metal tungstate with single metal oxide has attracted attention due to its potential ability towards the photocatalytic degradation of pollutants. The work demonstrates a WO3/g-C3N4/V2O5 nanocomposite synthesized using a facile route wet impregnation method. The results revealed that WO3/g-C3N4/V2O5 nanocomposites are suitable, mainly for their better surface properties, enhanced visible-light absorption, and preferred band positions. Besides that, the degradation of methylene blue (MB) dye is carried out and demonstrated that the complete degradation occurs over 120 min using 10 mg L-1 of WO3/g-C3N4/V2O5 nanocomposite under UV-visible-light irradiation. The scavenger experimental result implies that the photogenerated free electrons and superoxide radials are important role in MB dye degradation. In addition, a possible mechanism is proposed for the photocatalytic activity of WO3/g-C3N4/V2O5 nanocomposite. Moreover, the stability analysis demonstrated that the WO3/g-C3N4/V2O5 nanocomposite can be recycled multiple times.
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Affiliation(s)
- Balaji Parasuraman
- Smart Materials Laboratory, Department of Physics, Periyar University, Salem, 636011, Tamil Nadu, India
| | | | - Vasanthakumar Vasudevan
- Xiamen Key Laboratory of Municipal and Industrial Solid Waste Utilization and Pollution Control, College of Civil Engineering, Huaqiao University, Xiamen, Fujian, 361021, People's Republic of China
| | - Pazhanivel Thangavelu
- Smart Materials Laboratory, Department of Physics, Periyar University, Salem, 636011, Tamil Nadu, India.
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7
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Teng Z, Yang H, Zhang Q, Cai W, Lu YR, Kato K, Zhang Z, Ding J, Sun H, Liu S, Wang C, Chen P, Yamakata A, Chan TS, Su C, Ohno T, Liu B. Atomically dispersed low-valent Au boosts photocatalytic hydroxyl radical production. Nat Chem 2024:10.1038/s41557-024-01553-6. [PMID: 38918581 DOI: 10.1038/s41557-024-01553-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 05/03/2024] [Indexed: 06/27/2024]
Abstract
Providing affordable, safe drinking water and universal sanitation poses a grand societal challenge. Here we developed atomically dispersed Au on potassium-incorporated polymeric carbon nitride material that could simultaneously boost photocatalytic generation of ·OH and H2O2 with an apparent quantum efficiency over 85% at 420 nm. Potassium introduction into the poly(heptazine imide) matrix formed strong K-N bonds and rendered Au with an oxidation number close to 0. Extensive experimental characterization and computational simulations revealed that the low-valent Au altered the materials' band structure to trap highly localized holes produced under photoexcitation. These highly localized holes could boost the 1e- water oxidation reaction to form highly oxidative ·OH and simultaneously dissociate the hydrogen atom in H2O, which greatly promoted the reduction of oxygen to H2O2. The photogenerated ·OH led to an efficiency enhancement for visible-light-response superhydrophilicity. Furthermore, photo-illumination in an onsite fixed-bed reactor could disinfect water at a rate of 66 L H2O m-2 per day.
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Affiliation(s)
- Zhenyuan Teng
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Hongbin Yang
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Qitao Zhang
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, China
| | - Wenan Cai
- Department of Applied Chemistry, Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu-shi, Japan
| | - Ying-Rui Lu
- National Synchrotron Radiation Research Center, Hsinchu, Taiwan
| | - Kosaku Kato
- Department of Chemistry, Okayama University, Okayama-shi, Japan
| | - Zhenzong Zhang
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore
| | - Jie Ding
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Han Sun
- The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Sixiao Liu
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Chengyin Wang
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Peng Chen
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore
| | - Akira Yamakata
- Department of Chemistry, Okayama University, Okayama-shi, Japan
| | - Ting-Shan Chan
- National Synchrotron Radiation Research Center, Hsinchu, Taiwan
| | - Chenliang Su
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, China.
| | - Teruhisa Ohno
- Department of Applied Chemistry, Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu-shi, Japan.
| | - Bin Liu
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China.
- Department of Chemistry, Hong Kong Institute of Clean Energy and Center of Super-Diamond and Advanced Films, City University of Hong Kong, Hong Kong SAR, China.
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8
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Chang JN, Li S, Li Q, Wang JH, Guo C, Wang YR, Chen Y, Li SL, Lan YQ. Redox Molecular Junction Metal-Covalent Organic Frameworks for Light-assisted CO 2 Energy Storage. Angew Chem Int Ed Engl 2024; 63:e202402458. [PMID: 38545814 DOI: 10.1002/anie.202402458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Indexed: 04/25/2024]
Abstract
Visible-light sensitive and bi-functionally favored CO2 reduction (CRR)/evolution (CER) photocathode catalysts that can get rid of the utilization of ultraviolet light and improve sluggish kinetics is demanded to conquer the current technique-barrier of traditional Li-CO2 battery. Here, a kind of redox molecular junction sp2c metal-covalent organic framework (i.e. Cu3-BTDE-COF) has been prepared through the connection between Cu3 and BTDE and can serve as efficient photocathode catalyst in light-assisted Li-CO2 battery. Cu3-BTDE-COF with redox-ability, visible-light-adsorption region, electron-hole separation ability and endows the photocathode with excellent round-trip efficiency (95.2 %) and an ultralow voltage hysteresis (0.18 V), outperforming the Schiff base COFs (i.e. Cu3-BTDA-COF and Cu3-DT-COF) and majority of the reported photocathode catalysts. Combined theoretical calculations with characterizations, Cu3-BTDE-COF with the integration of Cu3 centers, thiazole and cyano groups possess strong CO2 adsorption/activation and Li+ interaction/diffusion ability to boost the CRR/CER kinetics and related battery property.
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Affiliation(s)
- Jia-Nan Chang
- School of Chemistry, South China Normal University, Guangzhou, 510006, P. R. China
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Shan Li
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Qi Li
- School of Chemistry, South China Normal University, Guangzhou, 510006, P. R. China
| | - Jian-Hui Wang
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Can Guo
- School of Chemistry, South China Normal University, Guangzhou, 510006, P. R. China
| | - Yi-Rong Wang
- School of Chemistry, South China Normal University, Guangzhou, 510006, P. R. China
| | - Yifa Chen
- School of Chemistry, South China Normal University, Guangzhou, 510006, P. R. China
| | - Shun-Li Li
- School of Chemistry, South China Normal University, Guangzhou, 510006, P. R. China
| | - Ya-Qian Lan
- School of Chemistry, South China Normal University, Guangzhou, 510006, P. R. China
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9
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Liu R, Liu S, Lin J, Zhang X, Li Y, Pan H, Kong L, Zhu S, Wang J. Bi-directional charge transfer channels in highly crystalline carbon nitride enabling superior photocatalytic hydrogen evolution. NANOSCALE 2024; 16:9802-9810. [PMID: 38712434 DOI: 10.1039/d4nr00796d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Introducing a donor-acceptor (D-A) unit is an effective approach to facilitate charge transfer in polymeric carbon nitride (PCN) and enhance photocatalytic performance. However, the introduction of hetero-molecules can lead to a decrease in crystallinity, limiting interlayer charge transfer and inhibiting further improvement. In this study, we constructed a novel D-A type carbon nitride with significantly higher crystallinity and a bi-directional charge transfer channel, which was achieved through 2,5-thiophenedicarboxylic acid (2,5-TDCA)-assisted self-assembly followed by KCl-templated calcination. The thiophene and cyano groups introduced serve as the electron donor and acceptor, respectively, enhancing in-plane electron delocalization. Additionally, introduced potassium ions are intercalated among the adjacent layers of carbon nitride, creating an interlayer charge transfer channel. Moreover, the highly ordered structure and improved crystallinity further facilitate charge transfer. As a result, the as-prepared photocatalyst exhibits superior photocatalytic hydrogen evolution (PHE) activity of 7.449 mmol h-1 g-1, which is 6.03 times higher than that of pure carbon nitride. The strategy of developing crystalline D-A-structured carbon nitride with controlled in-plane and interlayer charge transfer opens new avenues for the design of carbon nitride with enhanced properties for PHE.
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Affiliation(s)
- Runlu Liu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Siyuan Liu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Jingyi Lin
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Xiaoxiao Zhang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Yao Li
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Hui Pan
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Lingti Kong
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Shenmin Zhu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - John Wang
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore.
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10
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Li Y, Ge D, Zhang H, Shangguan L, Mou Z, Xia F, Sun J, Liu X, Su Y, Lei W. Solvated Electrons Generated on the Surface of Na-SPHI for Boosting Visible Light Photocatalytic Hydrogen Evolution with Ultra-High AQE. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401392. [PMID: 38705862 DOI: 10.1002/smll.202401392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 04/22/2024] [Indexed: 05/07/2024]
Abstract
Enhancing the utilization of visible-light-active semiconductors with an excellent apparent quantum efficiency (AQE) remains a significant and challenging goal in the realm of photocatalytic water splitting. In this study, a fully condensed sulfur-doped poly(heptazine imide) metalized with Na (Na-SPHI) is synthesized by an ionothermal method by using eutectic NaCl/LiCl mixture as the ionic solvent. Comprehensive characterizations of the obtained Na-SPHI reveal several advantageous features, including heightened light absorption, facilitated exciton dissociation, and expedited charge transfer. More importantly, solvated electron, powerful reducing agents, can be generated on the surface of Na-SPHI upon irradiation with visible light. Benefiting from above advantage, the Na-SPHI exhibits an excellent H2 evolution rate of 571.8 µmol·h-1 under visible light illumination and a super-high AQE of 61.7% at 420 nm. This research emphasizes the significance of the solvated electron on the surface of photocatalyst in overcoming the challenges associated with visible light-driven photocatalysis, showcasing its potential application in photocatalytic water splitting.
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Affiliation(s)
- Yuxuan Li
- School of Chemistry and Chemical Engineering, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou, 213001, China
| | - Dachuan Ge
- School of Chemistry and Chemical Engineering, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou, 213001, China
| | - Hui Zhang
- School of Chemistry and Chemical Engineering, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou, 213001, China
| | - Li Shangguan
- School of Chemistry and Chemical Engineering, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou, 213001, China
| | - Zhigang Mou
- School of Chemistry and Chemical Engineering, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou, 213001, China
| | - Feifei Xia
- School of Chemistry and Chemical Engineering, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou, 213001, China
| | - Jianhua Sun
- School of Chemistry and Chemical Engineering, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou, 213001, China
| | - Xiaofeng Liu
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yuyu Su
- Institute for Frontier Materials, Deakin University, Waurn Ponds, VIC, 3216, Australia
| | - Weiwei Lei
- School of Science, STEM College, RMIT University, Melbourne, VIC, 3000, Australia
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11
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Meng Z, Zhang J, Jiang C, Trapalis C, Zhang L, Yu J. Dynamics of Electron Transfer in CdS Photocatalysts Decorated with Various Noble Metals. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308952. [PMID: 38072789 DOI: 10.1002/smll.202308952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/21/2023] [Indexed: 05/25/2024]
Abstract
To address charge recombination in photocatalysis, the prevalent approach involves the use of noble metal cocatalysts. However, the precise factors influencing this performance variability based on cocatalyst selection have remained elusive. In this study, CdS hollow spheres loaded with distinct noble metal nanoparticles (Pt, Au, and Ru) are investigated by femtosecond transient absorption (fs-TA) spectroscopy. A more pronounced internal electric field leads to the creation of a larger Schottky barrier, with the order Pt-CdS > Au-CdS > Ru-CdS. Owing to these varying Schottky barrier heights, the interface electron transfer rate (Ke) and efficiency (ηe) of metal-CdS in acetonitrile (ACN) exhibit the following trend: Ru-CdS > Au-CdS > Pt-CdS. However, the trends of Ke and ηe for metal-CdS in water are different (Ru-CdS > Pt-CdS > Au-CdS) due to the influence of water, leading to the consumption of photogenerated electrons and affecting the metal/CdS interface state. Although Ru-CdS displays the highest Ke and ηe, its overall photocatalytic performance, particularly in H2 production, lags behind that of Pt-CdS due to the electron backflow from Ru to CdS. This work offers a fresh perspective on the origin of performance differences and provides valuable insights for cocatalyst design and construction.
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Affiliation(s)
- Zheng Meng
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, 68 Jincheng Street, Wuhan, 430078, P. R. China
| | - Jianjun Zhang
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, 68 Jincheng Street, Wuhan, 430078, P. R. China
| | - Chenchen Jiang
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, 68 Jincheng Street, Wuhan, 430078, P. R. China
| | - Christos Trapalis
- Materials Laboratory, Institute of Nanoscience and Nanotechnology, NCSR Demokritos, Agia Paraskevi, Atttikis, 153 43, Greece
| | - Liuyang Zhang
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, 68 Jincheng Street, Wuhan, 430078, P. R. China
| | - Jiaguo Yu
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, 68 Jincheng Street, Wuhan, 430078, P. R. China
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12
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Wang W, Mei S, Khan S, Hu Y, Sun L, Qaiser MA, Zhu C, Wang L, Liu Q. Phosphotungstic Acid Clusters Decorated Znln 2S 4 Nanoflowers as Molecular-Scale S-Scheme Heterojunctions for Simultaneous H 2 Evolution and Benzyl Alcohol Upgrading. CHEMSUSCHEM 2024:e202400575. [PMID: 38651621 DOI: 10.1002/cssc.202400575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 04/25/2024]
Abstract
Simultaneous utilization of photogenerated electrons and holes to achieve overall redox reactions is attractive but still far from practical application. The emerging step (S)-scheme mechanism has proven to be an ideal approach to inhibit charge recombination and supply photoinduced charges with highest redox potentials. Herein, a hierarchical phosphotungstic acid (H3PW12O40, HPW)@Znln2S4 (ZISW) heterojunction was prepared through one-pot hydrothermal method for simultaneous hydrogen (H2) evolution and benzyl alcohol upgrading. The fabricated HPW-based heterojunctions indicated much enhanced visible-light absorption, promoted photogenerated charge transfer and inhibited charge recombination, owing to hierarchical architecture based on visible-light responsive Znln2S4 microspheres, and S-scheme charge transfer pathway. The S-scheme mechanism was further verified by free-radical trapping electron spin resonance (ESR) spectra. Moreover, the wettability of composite heterojunction was improved by the modification of hydrophilic HPW, contributing to gaining active hydrogen (H+) from water sustainably. The optimal ZISW-30 heterojunction photocatalyst indicated an enhanced hydrogen evolution rate of 27.59 mmol g-1 h-1 in benzyl alcohol (10 vol. %) solution under full-spectrum irradiation, along with highest benzaldehyde production rate is 8.32 mmol g-1 h-1. This work provides a promising guideline for incorporating HPW into S-scheme heterojunctions to achieve efficient overall redox reactions.
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Affiliation(s)
- Weikang Wang
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P. R. China
| | - Shaobin Mei
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P. R. China
| | - Shahid Khan
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P. R. China
| | - Yujue Hu
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P. R. China
| | - Lijuan Sun
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P. R. China
| | - Muhammad Adnan Qaiser
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P. R. China
| | - Chengzhang Zhu
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Lele Wang
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P. R. China
| | - Qinqin Liu
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P. R. China
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13
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Sun Z, Guan R, Li H, Feng S, Ma L, Shen Q, Ling L, Jia H, Xue J. A novel two-dimensional Janus TiSiGeN 4 monolayer with N vacancies for efficient photocatalytic nitrogen reduction. Phys Chem Chem Phys 2024; 26:12199-12209. [PMID: 38591717 DOI: 10.1039/d3cp06302j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
The photocatalytic nitrogen reduction reaction (pNRR) is a clean technology that converts H2O and N2 into NH3 under environmental conditions using inexhaustible sunlight. Herein, we designed a novel two-dimensional (2D) Janus TiSiGeN4 structure and evaluated the pNRR performance of the structure with the presence of nitrogen vacancies at different positions using density functional theory (DFT) calculations. The intrinsic dipoles in the Janus TiSiGeN4 structure generate a built-in electric field, which promotes the migration of photogenerated electrons and holes towards the (001) and (00-1) surfaces, respectively, to achieve efficient charge separation. For the pNRR, the Si atoms exposed after the formation of top N vacancies can realize the efficient activation of N2 through the "acceptance-donation" mechanism, while the presence of middle N vacancies not only suppresses the hydrogen evolution reaction, a competition reaction, but also lowers the reaction barrier for the protonation of N atoms. The limiting potential of TiSiGeN4 with the coexistence of both top and middle N vacancies (TiSiGeN4-VN-mt) is as low as -0.44 V. In addition, the introduction of N vacancies generates defect levels, narrowing the band gap and improving the light response. This work provides theoretical guidance for the design of efficient pNRR photocatalysts under mild conditions.
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Affiliation(s)
- Zhe Sun
- Key Laboratory of Interface Science and Engineering in Advanced Materials (Taiyuan University of Technology), Ministry of Education, Taiyuan 030024, P. R. China.
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Rongfeng Guan
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng 224051, P. R. China
| | - Huimin Li
- Key Laboratory of Interface Science and Engineering in Advanced Materials (Taiyuan University of Technology), Ministry of Education, Taiyuan 030024, P. R. China.
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Shilong Feng
- Key Laboratory of Interface Science and Engineering in Advanced Materials (Taiyuan University of Technology), Ministry of Education, Taiyuan 030024, P. R. China.
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Lin Ma
- Key Laboratory of Interface Science and Engineering in Advanced Materials (Taiyuan University of Technology), Ministry of Education, Taiyuan 030024, P. R. China.
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Qianqian Shen
- Key Laboratory of Interface Science and Engineering in Advanced Materials (Taiyuan University of Technology), Ministry of Education, Taiyuan 030024, P. R. China.
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Lixia Ling
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Husheng Jia
- Key Laboratory of Interface Science and Engineering in Advanced Materials (Taiyuan University of Technology), Ministry of Education, Taiyuan 030024, P. R. China.
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan 030032, P. R. China
| | - Jinbo Xue
- Key Laboratory of Interface Science and Engineering in Advanced Materials (Taiyuan University of Technology), Ministry of Education, Taiyuan 030024, P. R. China.
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
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14
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Chen HY, Zhu SC, Xu HB, Ye MJ, Huang WF, He Y, Qian RC, Li DW. Cell membrane-targeted surface enhanced Raman scattering nanoprobes for the monitoring of hydrogen sulfide secreted from living cells. Biosens Bioelectron 2024; 250:116054. [PMID: 38295581 DOI: 10.1016/j.bios.2024.116054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 01/06/2024] [Accepted: 01/18/2024] [Indexed: 02/02/2024]
Abstract
Hydrogen sulfide (H2S), an important gas signal molecule, participates in intercellular signal transmission and plays a considerable role in physiology and pathology. However, in-situ monitoring of H2S level during the processes of material transport between cells remains considerably challenging. Herein, a cell membrane-targeted surface-enhanced Raman scattering (SERS) nanoprobe was designed to quantitatively detect H2S secreted from living cells. The nanoprobes were fabricated by assembling cholesterol-functionalized DNA strands and dithiobis(phenylazide) (DTBPA) molecules on core-shell gold nanostars embedded with 4-mercaptoacetonitrile (4-MBN) (AuNPs@4-MBN@Au). Thus, three functions including cell-membrane targeted via cholesterol, internal standard calibration, and responsiveness to H2S through reduction of azide group in DTBPA molecules were integrated into the nanoprobes. In addition, the nanoprobes can quickly respond to H2S within 90 s and sensitively, selectively, and reliably detect H2S with a limit of detection as low as 37 nM due to internal standard-assisted calibration and reaction specificity. Moreover, the nanoprobes can effectively target on cell membrane and realize SERS visualization of dynamic H2S released from HeLa cells. By employing the proposed approach, an intriguing phenomenon was observed: the other two major endogenous gas transmitters, carbon monoxide (CO) and nitric oxide (NO), exhibited opposite effect on H2S production in living cells stimulated by related gas release molecules. In particular, the introduction of CO inhibited the generation of H2S in HeLa cells, while NO promoted its output. Thus, the nanoprobes can provide a robust method for investigating H2S-related extracellular metabolism and intercellular signaling transmission.
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Affiliation(s)
- Hua-Ying Chen
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, Joint International Laboratory for Precision Chemistry, Frontiers Science Center for Materiobiology & Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China.
| | - Shi-Cheng Zhu
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, Joint International Laboratory for Precision Chemistry, Frontiers Science Center for Materiobiology & Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Han-Bin Xu
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, Joint International Laboratory for Precision Chemistry, Frontiers Science Center for Materiobiology & Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Ming-Jie Ye
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, Joint International Laboratory for Precision Chemistry, Frontiers Science Center for Materiobiology & Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Wen-Fei Huang
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, Joint International Laboratory for Precision Chemistry, Frontiers Science Center for Materiobiology & Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Yue He
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, Joint International Laboratory for Precision Chemistry, Frontiers Science Center for Materiobiology & Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Ruo-Can Qian
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, Joint International Laboratory for Precision Chemistry, Frontiers Science Center for Materiobiology & Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Da-Wei Li
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, Joint International Laboratory for Precision Chemistry, Frontiers Science Center for Materiobiology & Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China.
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15
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Li S, Chu S, Xia M, Wei H, Lu Y. Enhanced biomimetic catalysis via self-cascade photocatalytic hydrogen peroxide production over modified carbon nitride nanozymes for total antioxidant capacity evaluation. J Colloid Interface Sci 2024; 660:771-779. [PMID: 38271812 DOI: 10.1016/j.jcis.2024.01.132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/09/2024] [Accepted: 01/19/2024] [Indexed: 01/27/2024]
Abstract
The peroxidase mimics usually requires the addition of exogenous hydrogen peroxide (H2O2), which greatly hinder their practical applications. Herein, through rational co-modification of multiple elements (potassium (K), chlorine (Cl) and iodine (I)), the modified carbon nitride nanomaterials (KCl/KI-CN) could serve as efficient bifunctional catalysts. The multiple elements doping and the incorporation of cyano groups (CN) are deemed to enhance their photocatalytic and peroxidase-like activity, respectively. Based on the photocatalytic function, H2O2 can be produced continuously and steadily via two-electron oxygen reduction over modified carbon nitride under visible light irradiation. Subsequently, the KCl/KI-CN could catalyze the chromogenic substrate by the in-situ produced H2O2. Taking advantage of the bifunctional properties of modified carbon nitride, we for the first time demonstrate a self-cascade catalytic process and apply successfully for the ascorbic acid (AA) detection and versatile total antioxidant capacity (TAC) evaluation. This paper not only prepares an efficiently bifunctional catalyst but also provides a new self-cascade photocatalytic H2O2 production strategy for the peroxidase-like application.
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Affiliation(s)
- Shengzhen Li
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China
| | - Shushu Chu
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China
| | - Mingyuan Xia
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China
| | - Hengya Wei
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China
| | - Yizhong Lu
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
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16
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Kumar P, Antal P, Wang X, Wang J, Trivedi D, Fellner OF, Wu YA, Nemec I, Santana VT, Kopp J, Neugebauer P, Hu J, Kibria MG, Kumar S. Partial Thermal Condensation Mediated Synthesis of High-Density Nickel Single Atom Sites on Carbon Nitride for Selective Photooxidation of Methane into Methanol. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2304574. [PMID: 38009795 DOI: 10.1002/smll.202304574] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 10/30/2023] [Indexed: 11/29/2023]
Abstract
Direct selective transformation of greenhouse methane (CH4) to liquid oxygenates (methanol) can substitute energy-intensive two-step (reforming/Fischer-Tropsch) synthesis while creating environmental benefits. The development of inexpensive, selective, and robust catalysts that enable room temperature conversion will decide the future of this technology. Single-atom catalysts (SACs) with isolated active centers embedded in support have displayed significant promises in catalysis to drive challenging reactions. Herein, high-density Ni single atoms are developed and stabilized on carbon nitride (NiCN) via thermal condensation of preorganized Ni-coordinated melem units. The physicochemical characterization of NiCN with various analytical techniques including HAADF-STEM and X-ray absorption fine structure (XAFS) validate the successful formation of Ni single atoms coordinated to the heptazine-constituted CN network. The presence of uniform catalytic sites improved visible absorption and carrier separation in densely populated NiCN SAC resulting in 100% selective photoconversion of (CH4) to methanol using H2O2 as an oxidant. The superior catalytic activity can be attributed to the generation of high oxidation (NiIII═O) sites and selective C─H bond cleavage to generate •CH3 radicals on Ni centers, which can combine with •OH radicals to generate CH3OH.
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Affiliation(s)
- Pawan Kumar
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW Calgary, Alberta, T2N 1N4, Canada
| | - Peter Antal
- Department of Inorganic Chemistry, Faculty of Science, Palacký University Olomouc, Olomouc, 77146, Czech Republic
| | - Xiyang Wang
- Department of Mechanical and Mechatronics Engineering, Waterloo Institute for Nanotechnology, Materials Interface Foundry, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Jiu Wang
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW Calgary, Alberta, T2N 1N4, Canada
| | - Dhwanil Trivedi
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW Calgary, Alberta, T2N 1N4, Canada
| | - Ondřej František Fellner
- Department of Inorganic Chemistry, Faculty of Science, Palacký University Olomouc, Olomouc, 77146, Czech Republic
| | - Yimin A Wu
- Department of Mechanical and Mechatronics Engineering, Waterloo Institute for Nanotechnology, Materials Interface Foundry, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Ivan Nemec
- Department of Inorganic Chemistry, Faculty of Science, Palacký University Olomouc, Olomouc, 77146, Czech Republic
| | - Vinicius Tadeu Santana
- Central European Institute of Technology, Brno University of Technology, Purkyňova 123, Brno, 61200, Czech Republic
| | - Josef Kopp
- Department of Experimental Physics Faculty of Science, Palacký University Olomouc, 17. listopadu 1192/12, Olomouc, 77900, Czech Republic
| | - Petr Neugebauer
- Central European Institute of Technology, Brno University of Technology, Purkyňova 123, Brno, 61200, Czech Republic
| | - Jinguang Hu
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW Calgary, Alberta, T2N 1N4, Canada
| | - Md Golam Kibria
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW Calgary, Alberta, T2N 1N4, Canada
| | - Subodh Kumar
- Department of Inorganic Chemistry, Faculty of Science, Palacký University Olomouc, Olomouc, 77146, Czech Republic
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17
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Das S, Ng LS, Chong C, Pereira V, Li H, Lee CLK, Lee HK. Effective Interfacing of Surface Homojunctions on Chemically Identical g-C 3N 4 for Efficient Visible-Light Photocatalysis without Sacrificial Agents. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400780. [PMID: 38554020 DOI: 10.1002/smll.202400780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/12/2024] [Indexed: 04/01/2024]
Abstract
Developing efficient homojunctions on g-C3N4 promises metal-free photocatalysis to realize truly sustainable artificial photosynthesis. However, current designs are limited by hindered charge separation due to inevitable grain boundaries and random formation of ineffective homojunctions embedded within the photocatalyst. Here, efficient photocatalysis is driven by introducing effective surface homojunctions on chemically and structurally identical g-C3N4 through leveraging its size-dependent electronic properties. Using a top-down approach, the surface layer of bulk g-C3N4 is partially exfoliated to create sheet-like g-C3N4 nanostructures on the bulk material. This hierarchical design establishes a subtle band energy offset between the macroscopic and nanoscopic g-C3N4, generating homojunctions while maintaining the chemical and structural integrities of the original g-C3N4. The optimized g-C3N4 homojunction demonstrates superior photocatalytic degradation of antibiotic pollutants at >96% efficiency in 2 h, even in different real water samples. It achieves reaction kinetics (≈0.041 min-1) up to fourfold better than standalone materials and their physical mixture. Mechanistic studies highlight the importance of the unique design in boosting photocatalysis by effectively promoting interfacial photocarrier manipulation and utilization directly at the point-of-catalysis, without needing co-catalysts or sacrificial agents. This work presents enormous opportunities for developing advanced and green photocatalytic platforms for sustainable light-driven environmental, energy, and chemical applications.
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Affiliation(s)
- Sankar Das
- Division of Chemistry and Biological Chemistry, School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Li Shiuan Ng
- Division of Chemistry and Biological Chemistry, School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Carice Chong
- Division of Chemistry and Biological Chemistry, School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Veronica Pereira
- Division of Chemistry and Biological Chemistry, School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Haitao Li
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, P. R. China
| | - Chi-Lik Ken Lee
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), The Agency for Science, Technology and Research (A*STAR), Jurong Island, Singapore, 627833, Singapore
| | - Hiang Kwee Lee
- Division of Chemistry and Biological Chemistry, School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
- Institute of Materials Research and Engineering, The Agency for Science, Technology and Research (A∗STAR), 2 Fusionopolis Way, #08-03, Innovis, Singapore, 138634, Singapore
- Centre for Hydrogen Innovations, National University of Singapore, E8, 1 Engineering drive 3, Singapore, 117580, Singapore
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18
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Chen F, Lv X, Wang H, Wen F, Qu L, Zheng G, Han Q. Weak-Field Electro-Flash Induced Asymmetric Catalytic Sites toward Efficient Solar Hydrogen Peroxide Production. JACS AU 2024; 4:1219-1228. [PMID: 38559724 PMCID: PMC10976576 DOI: 10.1021/jacsau.4c00076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 02/14/2024] [Accepted: 02/16/2024] [Indexed: 04/04/2024]
Abstract
Borocarbonitride (BCN), in a mesoscopic asymmetric state, is regarded as a promising photocatalyst for artificial photosynthesis. However, BCN materials reported in the literature primarily consist of symmetric N-[B]3 units, which generate highly spatial coupled electron-hole pairs upon irradiation, thus kinetically suppressing the solar-to-chemical conversion efficiency. Here, we propose a facile and fast weak-field electro-flash strategy, with which structural symmetry breaking is introduced on key nitrogen sites. As-obtained double-substituted BCN (ds-BCN) possesses high-concentration asymmetric [B]2-N-C coordination, which displays a highly separated electron-hole state and broad visible-light harvesting, as well as provides electron-rich N sites for O2 affinity. Thereby, ds-BCN delivers an apparent quantum yield of 7.6% at 400 nm and a solar-to-chemical conversion efficiency of 0.3% for selective 2e-reduction of O2 to H2O2, over 4-fold higher than that of the traditional calcined BCN analogue and superior to the metal-free C3N4-based photocatalysts reported so far. The weak-field electro-flash method and as-induced catalytic site symmetry-breaking methodologically provide a new method for the fast and low-cost fabrication of efficient nonmetallic catalysts toward solar-to-chemical conversions.
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Affiliation(s)
- Fangshuai Chen
- Laboratory
of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory
of Cluster Science, Ministry of Education of China, School of Chemistry
and Chemical Engineering, Beijing Institute
of Technology, Beijing 100081, P. R. China
| | - Ximeng Lv
- Laboratory
of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Faculty of Chemistry
and Materials Science, Fudan University, Shanghai 200438, P. R. China
| | - Haozhen Wang
- Laboratory
of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Faculty of Chemistry
and Materials Science, Fudan University, Shanghai 200438, P. R. China
| | - Fan Wen
- Laboratory
of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory
of Cluster Science, Ministry of Education of China, School of Chemistry
and Chemical Engineering, Beijing Institute
of Technology, Beijing 100081, P. R. China
| | - Liangti Qu
- Key
Laboratory of Organic Optoelectronics & Molecular Engineering
of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Gengfeng Zheng
- Laboratory
of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Faculty of Chemistry
and Materials Science, Fudan University, Shanghai 200438, P. R. China
| | - Qing Han
- Laboratory
of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Faculty of Chemistry
and Materials Science, Fudan University, Shanghai 200438, P. R. China
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19
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Xu M, Wang R, Fu H, Shi Y, Ling L. Harmonizing the cyano-group and Na to enhance selective photocatalytic O 2 activation on carbon nitride for refractory pollutant degradation. Proc Natl Acad Sci U S A 2024; 121:e2318787121. [PMID: 38478697 PMCID: PMC10962954 DOI: 10.1073/pnas.2318787121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/03/2024] [Indexed: 03/27/2024] Open
Abstract
Manipulating exciton dissociation and charge-carrier transfer processes to selectively generate free radicals of more robust photocatalytic oxidation capacity for mineralizing refractory pollutants remains challenging. Herein, we propose a strategy by simultaneously introducing the cyano-group and Na into graphitic carbon nitride (CN) to obtain CN-Cy-Na, which makes the charge-carrier transfer pathways the dominant process and consequently achieves the selective generation of free radicals. Briefly, the cyano-group intensifies the local charge density of CN, offering a potential well to attract the hole of exciton, which accelerates the exciton dissociation. Meanwhile, the separated electron transfers efficiently under the robust built-in electric field induced by the cyano-group and Na, and eventually accumulates in the heptazine ring of CN for the following O2 reduction due to the reinforced electron sink effect caused by Na. As a result, CN-Cy-Na exhibits 4.42 mmol L-1 h-1 productivity with 97.6% selectivity for free radicals and achieves 82.1% total organic carbon removal efficiency in the tetracycline photodegradation within 6 h. Additionally, CN-Cy-Na also shows outstanding photodegradation efficiency of refractory pollutants, including antibiotics, pesticide plastic additives, and dyes. This work presents an innovative approach to manipulating the exciton effect and enhancing charge-carrier mobility within two-dimensional photocatalysts, opening an avenue for precise control of free radical generation.
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Affiliation(s)
- Mingkai Xu
- State Key Laboratory for Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai200092, China
| | - Ruizhao Wang
- State Key Laboratory for Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai200092, China
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai200240, China
| | - Haoyang Fu
- State Key Laboratory for Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai200092, China
| | - Yanbiao Shi
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai200240, China
| | - Lan Ling
- State Key Laboratory for Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai200092, China
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20
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Li JY, Du XY, Wang XX, Yuan XY, Guan DH, Xu JJ. Photo-Assisted Li-N 2 Batteries with Enhanced Nitrogen Fixation and Energy Conversion. Angew Chem Int Ed Engl 2024; 63:e202319211. [PMID: 38198190 DOI: 10.1002/anie.202319211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 01/11/2024]
Abstract
Li-N2 batteries have received widespread attention for their potential to integrate N2 fixation, energy storage, and conversion. However, because of the low activity and poor stability of cathode catalysts, the electrochemical performance of Li-N2 batteries is suboptimal, and their electrochemical reversibility has rarely been proven. In this study, a novel bifunctional photo-assisted Li-N2 battery system was established by employing a plasmonic Au nanoparticles (NPs)-modified defective carbon nitride (Au-Nv -C3 N4 ) photocathode. The Au-Nv -C3 N4 exhibits strong light-harvesting, N2 adsorption, and N2 activation abilities, and the photogenerated electrons and hot electrons are remarkably beneficial for accelerating the discharge and charge reaction kinetics. These advantages enable the photo-assisted Li-N2 battery to achieve a low overpotential of 1.32 V, which is the lowest overpotential reported to date, as well as superior rate capability and prolonged cycle stability (≈500 h). Remarkably, a combination of theoretical and experimental results demonstrates the high reversibility of the photo-assisted Li-N2 battery. The proposed novel strategy for developing efficient cathode catalysts and fabricating photo-assisted battery systems breaks through the overpotential bottleneck of Li-N2 batteries, providing important insights into the mechanism underlying N2 fixation and storage.
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Affiliation(s)
- Jian-You Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
- International Center of Future Science, Jilin University, Changchun, 130012, P. R. China
| | - Xing-Yuan Du
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Xiao-Xue Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
- International Center of Future Science, Jilin University, Changchun, 130012, P. R. China
| | - Xin-Yuan Yuan
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - De-Hui Guan
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Ji-Jing Xu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
- International Center of Future Science, Jilin University, Changchun, 130012, P. R. China
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21
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Lin L, Xie K, He C. Nitrogen-vacancy-modulated efficient ammonia desorption over 3d TM-anchored BC 3N 2 monolayer. Phys Chem Chem Phys 2024; 26:2082-2092. [PMID: 38131401 DOI: 10.1039/d3cp04572b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Nitrogen fixation using electrochemical methods on the surface of single-atom catalysts (SACs) provides a highly feasible strategy for green and low-energy-consumption ammonia (NH3) production. Herein, using density functional theory (DFT) calculations, we explored in detail the potential of monolayer BC3N2 SACs supported with 3d transition metal (TM) atoms (TM@BC3N2) to facilitate nitrogen reduction. The results revealed that the TM@BC3N2 systems exhibited remarkable catalytic activity in the nitrogen-reduction reaction (NRR). The fine NRR activity was related to the just-right bonding/antibonding orbital interactions between the 2π* of N2 and the d orbitals of the TM ions. The nitrogen-adsorption configurations were found to have different activation mechanisms. In addition, the effects of convectively formed convex nitrogen defects (VN) on the interaction between N2 and VN-TM@BC3N2 and the NRR process of VN-TM@BC3N2 were studied, and it was found that VN could fine-tune the reaction efficiency of the eNRR because after N atom dissociation to form VN, the interaction of TM-C3 was enhanced, and the activation of nitrogen and adsorption of NH3 by the TM-active centers were weakened. The present study can be used as a motivation for further experimental and theoretical research of 2D monolayers as NRR electrocatalysts.
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Affiliation(s)
- Long Lin
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, 454000, Henan, China
| | - Kun Xie
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, 454000, Henan, China
| | - Chaozheng He
- Institute of Environmental and Energy Catalysis, School of Materials Science and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China.
- Shaanxi Key Laboratory of Optoelectronic Functional Materials and Devices, School of Materials Science and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China
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22
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Yao L, Yu Y, Xu X, Du Z, Yang T, Hu J, Huang H. In-situ construction of WS 2/ZIF-8 composites with an electron-rich interface for enhancing nitrogen photofixation. J Colloid Interface Sci 2024; 654:189-200. [PMID: 37839236 DOI: 10.1016/j.jcis.2023.10.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 09/26/2023] [Accepted: 10/06/2023] [Indexed: 10/17/2023]
Abstract
Photocatalytic nitrogen reduction reaction (PNRR) is an environmentally friendly synthesis method. It has been regarded as a promising approach for future NH3 preparation, which can reduce the natural fuel consumption and pollution of the Haber Bosch process. Nevertheless, this method exists poor activity for mass production, so it is urgent but challenging to explore highly efficient catalysts. Here, the novel WS2/ZIF-8 composites are reported, DFT and XPS indicate the transfer direction of electrons is from ZIF-8 to WS2, forming an electron-rich interface between WS2 and ZIF-8, thus it endows the more powerful photocatalytic nitrogen reduction ability for 2-WS2/ZIF-8 than monomer material. Meanwhile, 2-WS2/ZIF-8 exhibits admirable photocatalytic nitrogen reduction performance under real and simulated sunlight or in tap water, further attesting its excellent stability and practicability.
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Affiliation(s)
- Lin Yao
- State Key Laboratory of Metastable Materials Science & Technology, Hebei Key Laboratory of Heavy Metal Deep Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, PR China.
| | - Yanming Yu
- State Key Laboratory of Metastable Materials Science & Technology, Hebei Key Laboratory of Heavy Metal Deep Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, PR China.
| | - Xin Xu
- State Key Laboratory of Metastable Materials Science & Technology, Hebei Key Laboratory of Heavy Metal Deep Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, PR China.
| | - Zhenhang Du
- State Key Laboratory of Metastable Materials Science & Technology, Hebei Key Laboratory of Heavy Metal Deep Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, PR China.
| | - Tao Yang
- Jiangxi Province Engineering Research Center of Ecological Chemical Industry, Jiujiang University, Jiujiang 332005, PR China.
| | - Jie Hu
- State Key Laboratory of Metastable Materials Science & Technology, Hebei Key Laboratory of Heavy Metal Deep Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, PR China.
| | - Hao Huang
- State Key Laboratory of Metastable Materials Science & Technology, Hebei Key Laboratory of Heavy Metal Deep Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, PR China.
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23
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Xing F, Liu S, Li J, Wang C, Jin S, Jin H, Li J. Modulate the Strong Exciton Effect by Na + Coordination-Induced Trap States: Efficient Photocatalytic H 2O 2 Production. ACS APPLIED MATERIALS & INTERFACES 2024; 16:860-868. [PMID: 38151338 DOI: 10.1021/acsami.3c16110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Due to the strong Coulomb interaction, in most polymer photocatalysts, electron-hole pairs exist in the form of excitons rather than free charge carriers. The giant excitonic effect is a key obstacle to generating free charge carriers. Therefore, effectively regulating the exciton effect is the first step to achieving optimized carrier separation. Here, we used C-ring/g-C3N4 as the prototypical model system to design a photocatalyst with a Na-coordination-induced trap state. We demonstrate that the excitons can be effectively dissociated into charge carriers by combining with the trap state formed by Na doping sites. Encouragingly, signals from the dissociation of excitons into carriers were observed by ultrafast transient spectroscopy. Benefiting from the enhanced exciton dissociation, Na-C/CN displayed a H2O2 production rate of 17.4 mmol·L-1·h-1 with an apparent quantum efficiency up to 26.9% at 380 nm, which is much higher than many other g-C3N4-based photocatalysts. This work explains the effect of cation doping on the exciton-carrier behavior in polymers. Also, it provides a new way to regulate the exciton effect.
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Affiliation(s)
- Fangyuan Xing
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Shiqiao Liu
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Junyan Li
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Chengzhi Wang
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Shaohua Jin
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Haibo Jin
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jingbo Li
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
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24
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Jing L, Xu Y, Xie M, Li Z, Wu C, Zhao H, Zhong N, Wang J, Wang H, Yan Y, Li H, Hu J. Cyano-Rich g-C 3 N 4 in Photochemistry: Design, Applications, and Prospects. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2304404. [PMID: 37670529 DOI: 10.1002/smll.202304404] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/18/2023] [Indexed: 09/07/2023]
Abstract
Cyano-rich g-C3 N4 materials are widely used in various fields of photochemistry due to the very powerful electron-absorbing ability and electron storage function of cyano, as well as its advantages in improving light absorption, adjusting the energy band structure, increasing the polarization rate and electron density in the structure, active site concentration, and promoting oxygen activation ability. Notwithstanding, there is yet a huge knowledge break in the design, preparation, detection, application, and prospect of cyano-rich g-C3 N4 . Accordingly, an overall review is arranged to substantially comprehend the research progress and position of cyano-rich g-C3 N4 materials. An overall overview of the current research position in the synthesis, characterization (determination of their location and quantity), application, and reaction mechanism analysis of cyano-rich g-C3 N4 materials to provide a quantity of novel suggestions for cyano-modified carbon nitride materials' construction is provided. In view of the prevailing challenges and outlooks of cyano-rich g-C3 N4 materials, this paper will purify the growth direction of cyano-rich g-C3 N4 , to achieve a more in-depth exploration and broaden the applications of cyano-rich g-C3 N4 .
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Affiliation(s)
- Liquan Jing
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, T2N 1N4, Canada
| | - Yuanguo Xu
- School of Chemistry and Chemical Engineering, School of Pharmacy, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Meng Xie
- School of Chemistry and Chemical Engineering, School of Pharmacy, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Zheng Li
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, T2N 1N4, Canada
| | - Chongchong Wu
- CNOOC Institute of Chemicals & Advanced Materials (CICM), Beijing, 102200, P. R. China
| | - Heng Zhao
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, T2N 1N4, Canada
| | - Na Zhong
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, T2N 1N4, Canada
| | - Jiu Wang
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, T2N 1N4, Canada
| | - Hui Wang
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, T2N 1N4, Canada
| | - Yubo Yan
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, T2N 1N4, Canada
- Jiangsu Engineering Laboratory for Environment Functional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an, 223300, P. R. China
| | - Huaming Li
- Institute for Energy Research, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Jinguang Hu
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, T2N 1N4, Canada
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25
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Ju L, Ma Y, Tan X, Kou L. Controllable Electrocatalytic to Photocatalytic Conversion in Ferroelectric Heterostructures. J Am Chem Soc 2023; 145:26393-26402. [PMID: 38010364 DOI: 10.1021/jacs.3c10271] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Photocatalytic and electrocatalytic reactions to produce value-added chemicals offer promising solutions for addressing the energy crisis and environmental pollution. Photocatalysis is driven by light excitation and charge separation and relies on semiconducting catalysts, while electrocatalysis is driven by external electric current and is mostly based on metallic catalysts with high electrical conductivity. Due to the distinct reaction mechanism, the conversion between the two catalytic types has remained largely unexplored. Herein, by means of density functional theory (DFT) simulations, we demonstrated that the ferroelectric heterostructures Mo-BN@In2Se3 and WSe2@In2Se3 can exhibit semiconducting or metallic features depending on the polarization direction as a result of the built-in field and electron transfer. Using the nitrogen reduction reaction (NRR) and hydrogen evolution reaction (HER) as examples, the metallic heterostructures act as excellent electrocatalysts for these reactions, while the semiconducting heterostructures serve as the corresponding photocatalysts with improved optical absorption, enhanced charge separation, and low Gibbs free energy change. The findings not only bridge physical phenomena of the electronic phase transition with chemical reactions but also offer a new and feasible approach to significantly improve the catalytic efficiency.
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Affiliation(s)
- Lin Ju
- School of Physics and Electric Engineering, Anyang Normal University, Anyang 455000, China
| | - Yandong Ma
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Xin Tan
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, Zhejiang, China
| | - Liangzhi Kou
- School of Mechanical, Medical and Process Engineering Faculty, Queensland University of Technology, Brisbane, QLD 4001, Australia
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26
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Zhang Y, Cao Q, Meng A, Wu X, Xiao Y, Su C, Zhang Q. Molecular Heptazine-Triazine Junction over Carbon Nitride Frameworks for Artificial Photosynthesis of Hydrogen Peroxide. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2306831. [PMID: 37775094 DOI: 10.1002/adma.202306831] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 09/15/2023] [Indexed: 10/01/2023]
Abstract
Revealing the photocatalytic mechanism between various junctions and catalytic activities has become a hotspot in photocatalytic systems. Herein, an internal molecular heptazine/triazine (H/T) junction in crystalline carbon nitride (HTCN) is constructed and devoted to selective two-electron oxygen reduction reaction (2e- ORR) for efficient hydrogen peroxide (H2 O2 ) production. In-situ X-ray diffraction spectra under various temperatures authenticate the successful formation of molecular H/T junction in HTCN during the calcining process rather than physically mixing. The increased surface photovoltage and transient photovoltage signals, and the decreased exciton binding energy undoubtably elucidate that an obvious increasement of carrier density and diffusion capability of photogenerated electrons are realized over HTCN. Additionally, the analyses of in situ photoirradiated Kelvin probe force microscopy and femto-second transient absorption spectra reveal the successful construction of the strong internal built-in-electric field and the existence of the majority of long-lived shallow trapped electrons associated with molecular H/T junction over HTCN, respectively. Benefiting from these, the photocatalytic results exhibit an incredible improvement (96.5-fold) for H2 O2 production. This novel work provides a comprehensive understanding of the long-lived reactive charges in molecular H/T junctions for strengthening the driving-force for photocatalytic H2 O2 production, which opens potential applications for enhancing PCN-based photocatalytic redox reactions.
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Affiliation(s)
- Yunxiao Zhang
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China
- College of Light Chemical Industry and Materials Engineering, Shunde Polytechnic, Foshan, 528300, P. R. China
| | - Qingxiang Cao
- College of Light Chemical Industry and Materials Engineering, Shunde Polytechnic, Foshan, 528300, P. R. China
| | - Aiyun Meng
- College of New Materials and New Energies, Shenzhen Technology University, Shenzhen, 518118, P. R. China
| | - Xuelian Wu
- College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Yonghao Xiao
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Chenliang Su
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Qitao Zhang
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China
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27
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Shi Y, Zhao Z, Yang D, Tan J, Xin X, Liu Y, Jiang Z. Engineering photocatalytic ammonia synthesis. Chem Soc Rev 2023; 52:6938-6956. [PMID: 37791542 DOI: 10.1039/d2cs00797e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Photocatalytic ammonia synthesis (PAS) is an emerging zero carbon emission technology, which is critical for mitigating energy crises and achieving carbon neutrality. Herein, we summarize the recent advances and challenges in PAS from an engineering perspective based on its whole chain process, i.e., materials engineering, structure engineering and reaction engineering. For materials engineering, we discuss the commonly used photocatalytic materials including metal oxides, bismuth oxyhalides and graphitic carbon nitride and emerging materials, such as organic frameworks, along with the analysis of their characteristics and regulation methods to enhance the PAS performance. For structure engineering, the design of photocatalysts is described in terms of morphology, vacancy and band, corresponding to the crystal, atom and electron scales, respectively. Moreover, the structure-performance relationship of photocatalysts has been deeply explored in this section. For reaction engineering, we identify three key processes from the chemical reaction and mass transfer, i.e., nitrogen activation, molecule transfer and electron transfer, to intensify and optimize the PAS reaction. Hopefully, this review will provide a novel paradigm for the design and preparation of high-efficiency ammonia synthesis photocatalysts and inspire the practical application of PAS.
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Affiliation(s)
- Yonghui Shi
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Zhanfeng Zhao
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Dong Yang
- Key Laboratory of Systems Bioengineering of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Jiangdan Tan
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Xin Xin
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Yongqi Liu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Zhongyi Jiang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
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28
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Zhou Y, Chai Y, Sun H, Li X, Liu X, Liang Y, Gong X, Wu Z, Liu C, Qin P. Design strategies and mechanisms of g-C 3N 4-based photoanodes for photoelectrocatalytic degradation of organic pollutants in water. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 344:118545. [PMID: 37418928 DOI: 10.1016/j.jenvman.2023.118545] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/17/2023] [Accepted: 06/27/2023] [Indexed: 07/09/2023]
Abstract
Emerging photoelectrocatalytic (PEC) systems integrate the advantages of photocatalysis and electrocatalysis and are considered as a promising technology for solving the global organic pollution problem in water environments. Among the photoelectrocatalytic materials applied for organic pollutant degradation, graphitic carbon nitride (CN) has the combined advantages of environmental compatibility, stability, low cost, and visible light response. However, pristine CN has disadvantages such as low specific surface area, low electrical conductivity, and high charge complexation rate, and how to improve the degradation efficiency of PEC reaction and the mineralization rate of organic matter is the main problem faced in this field. Therefore, this paper reviews the progress of various functionalized CN used for PEC reaction in recent years, and the degradation efficiency of these CN-based materials is critically evaluated. First, the basic principles of PEC degradation of organic pollutants are outlined. Then, engineering strategies to enhance the PEC activity of CN (including morphology control, elemental doping, and heterojunction construction) are focused on, and the structure-activity relationships between these engineering strategies and PEC activity are discussed. In addition, the important role of influencing factors on the PEC system is summarized in terms of mechanism, to provide guidance for the subsequent research. Finally, suggestions and perspectives are provided for the preparation of efficient and stable CN-based photoelectrocatalysts for practical wastewater treatment applications.
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Affiliation(s)
- Yunfei Zhou
- College of Resources and Environment, Xiangtan University, Xiangtan, 411105, PR China; College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China
| | - Youzheng Chai
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha, 410128, PR China
| | - Haibo Sun
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha, 410128, PR China
| | - Xueying Li
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha, 410128, PR China
| | - Xingwang Liu
- College of Resources and Environment, Xiangtan University, Xiangtan, 411105, PR China.
| | - Yunshan Liang
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha, 410128, PR China
| | - Xiaomin Gong
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha, 410128, PR China
| | - Zhibin Wu
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha, 410128, PR China.
| | - Chao Liu
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha, 410128, PR China
| | - Pufeng Qin
- College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha, 410128, PR China.
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29
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Yu K, Li Y, Cao X, Wang R, Zhou L, Wu L, He N, Lei J, Fu D, Chen T, He R, Zhu W. In-situ constructing amidoxime groups on metal-free g-C 3N 4 to enhance chemisorption, light absorption, and carrier separation for efficient photo-assisted uranium(VI) extraction. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132356. [PMID: 37633015 DOI: 10.1016/j.jhazmat.2023.132356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 08/10/2023] [Accepted: 08/20/2023] [Indexed: 08/28/2023]
Abstract
The development of inexpensive and efficient semiconductor catalysts for photo-assisted uranium extraction from seawater remains a huge challenge. Herein, we have successfully synthesized amidoxime-rich g-C3N4 (AO-C3N4) by simply amidoximing a cyano-rich precursor for photo-assisted uranium extraction from seawater. The amidoxime groups not only served as the U(VI) binding sites for efficient uranium adsorption, but also significantly improved the visible light absorption capacity and carrier separation efficiency via introducing defect energy level, resulting in the excellent photocatalytic activity for AO-C3N4 towards photo-assisted uranium extraction. In the process of photo-assisted uranium extraction, U(VI) was first adsorbed by the amidoxime groups on the AO-C3N4 and then reduced to U(IV), while (UO2)O2·2H2O and (UO2)O2·4H2O were further formed by the oxidation of U(IV) by superoxide radicals (·O2-). Moreover, the generated reactive oxygen species (ROS) under light endowed AO-C3N4 with outstanding antibacterial properties, preventing the limitation of uranium extraction capacity from marine biofouling.
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Affiliation(s)
- Kaifu Yu
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Civil-military Integration Institute, School of National Defence & Nuclear Science and Technology, Southwest University of Science and Technology, Mianyang, Sichuan 621010, PR China; College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Yi Li
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, PR China
| | - Xin Cao
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Civil-military Integration Institute, School of National Defence & Nuclear Science and Technology, Southwest University of Science and Technology, Mianyang, Sichuan 621010, PR China
| | - Ruixiang Wang
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Civil-military Integration Institute, School of National Defence & Nuclear Science and Technology, Southwest University of Science and Technology, Mianyang, Sichuan 621010, PR China
| | - Li Zhou
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Civil-military Integration Institute, School of National Defence & Nuclear Science and Technology, Southwest University of Science and Technology, Mianyang, Sichuan 621010, PR China
| | - Linzhen Wu
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Civil-military Integration Institute, School of National Defence & Nuclear Science and Technology, Southwest University of Science and Technology, Mianyang, Sichuan 621010, PR China
| | - Ningning He
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Jia Lei
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Civil-military Integration Institute, School of National Defence & Nuclear Science and Technology, Southwest University of Science and Technology, Mianyang, Sichuan 621010, PR China; State Key Laboratory of Radiation Medicine and Protection, School for Radiological and interdiscipli-nary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Dengjiang Fu
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Civil-military Integration Institute, School of National Defence & Nuclear Science and Technology, Southwest University of Science and Technology, Mianyang, Sichuan 621010, PR China
| | - Tao Chen
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Civil-military Integration Institute, School of National Defence & Nuclear Science and Technology, Southwest University of Science and Technology, Mianyang, Sichuan 621010, PR China.
| | - Rong He
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Civil-military Integration Institute, School of National Defence & Nuclear Science and Technology, Southwest University of Science and Technology, Mianyang, Sichuan 621010, PR China.
| | - Wenkun Zhu
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Sichuan Civil-military Integration Institute, School of National Defence & Nuclear Science and Technology, Southwest University of Science and Technology, Mianyang, Sichuan 621010, PR China.
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30
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Jia Z, Xiao Y, Guo S, Xiong L, Yu P, Lu T, Song R. Porphyrin Supramolecular Nanoassembly/C 3N 4 Nanosheet S-Scheme Heterojunctions for Selective Photocatalytic CO 2 Reduction toward CO. ACS APPLIED MATERIALS & INTERFACES 2023; 15:47070-47080. [PMID: 37774010 DOI: 10.1021/acsami.3c10503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/01/2023]
Abstract
The photocatalytic reduction of CO2 with H2O into valuable chemicals is a sustainable carbon-neutral technology for renewable energy; however, the photocatalytic activity and product selectivity remain challenging. Herein, an S-scheme heterojunction photocatalyst with superior CO2 photoreduction performance─porous C3N4 (CN) nanosheets anchored with zinc(II) tetra(4-cyanophenyl)porphyrin (ZnTP) nanoassemblies (denoted as ZnTP/CN)─was designed and prepared via a simple self-assembly process. The constructed ZnTP/CN heterojunction had rich accessible active sites, improved CO2 absorption capacity, and high charge carrier separation efficiency caused by the S-scheme heterojunction. As a result, the obtained ZnTP/CN catalyst exhibited considerable activity for photocatalytic CO2 reduction, yielding CO with a generation rate of 19.4 μmol g-1·h-1 and a high selectivity of 95.8%, which is much higher than that of pristine CN nanosheets (4.53 μmol g-1·h-1, 57.4%). In addition, theoretical calculations and in situ Fourier transform infrared spectra demonstrated that the Zn sites in the porphyrin unit favor CO2 activation and *COOH formation as well as CO desorption, thereby affording a high CO selectivity. This work provides insight into the design and fabrication of efficient S-scheme heterostructure photocatalysts for solar energy storage.
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Affiliation(s)
- Zhenzhen Jia
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Yuting Xiao
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Shien Guo
- Institute of Advanced Materials (IAM), College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People's Republic of China
| | - Liangliang Xiong
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Peng Yu
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, China
| | - Tianyu Lu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Renjie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
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31
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Wen J, Cai W, Zhang Z, Zhong Q, Qu H. The role of 13X molecular sieves in photocatalytic nitrogen fixation. Chem Commun (Camb) 2023; 59:12023-12026. [PMID: 37728289 DOI: 10.1039/d3cc03687a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
To overcome the weak adsorption and difficult activation of N2 on catalysts in the photocatalytic nitrogen reduction reaction (NRR), we put forward that the introduction of molecular sieve 13X may realize the enrichment and activation of N2. 13X and the photoactive substrate BiOBr were assembled electrostatically to construct composite catalysts. In the presence of 13X, they are rich in nitrogen adsorption and activation sites, and the highest ammonia yield can reach 360.5 μmol h-1 gcat-1. It is surprising to find that 13X is able to optimize the photoelectric properties. This work extends the function of molecular sieves in the NRR and offers guidance to design catalysts with high photocatalytic activity.
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Affiliation(s)
- Jianuan Wen
- Department of Chemical Engineering and Technology, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, P. R. China.
| | - Wei Cai
- Department of Chemical Engineering and Technology, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, P. R. China.
| | - Zhicheng Zhang
- Department of Chemical Engineering and Technology, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, P. R. China.
| | - Qin Zhong
- Department of Chemical Engineering and Technology, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, P. R. China.
| | - Hongxia Qu
- Department of Chemical Engineering and Technology, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, P. R. China.
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32
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Hamsa AP, Arulprakasam M, Unni SM. Electrochemical nitrogen fixation on single metal atom catalysts. Chem Commun (Camb) 2023; 59:10689-10710. [PMID: 37584339 DOI: 10.1039/d3cc02229c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
The electrochemical reduction of nitrogen (eNRR) offers a promising alternative to the Haber-Bosch (H-B) process for producing ammonia under moderate conditions. However, the inertness of dinitrogen and the competing hydrogen evolution reaction pose significant challenges for eNRR. Thus, developing more efficient electrocatalysts requires a deeper understanding of the underlying mechanistic reactions and electrocatalytic activity. Single atom catalysts, which offer tunable catalytic properties and increased selectivity, have emerged as a promising avenue for eNRR. Carbon and metal-based substrates have proven effective for dispersing highly active single atoms that can enhance eNRR activity. In this review, we explore the use of atomically dispersed single atoms on different substrates for eNRR from both conceptual and experimental perspectives. The review is divided into four sections: the first section describes eNRR mechanistic pathways, the second section focuses on single metal atom catalysts (SMACs) with metal atoms dispersed on carbon substrates for eNRR, the third section covers SMACs with metal atoms dispersed on non-carbon substrates for eNRR, and the final section summarizes the remaining challenges and future scope of eNRR for green ammonia production.
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Affiliation(s)
- Ashida P Hamsa
- CSIR-Central Electrochemical Research Institute Madras Unit, CSIR Madras Complex, Taramani, Chennai 600113, Tamil Nadu, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Muraliraj Arulprakasam
- CSIR-Central Electrochemical Research Institute Madras Unit, CSIR Madras Complex, Taramani, Chennai 600113, Tamil Nadu, India.
| | - Sreekuttan M Unni
- CSIR-Central Electrochemical Research Institute Madras Unit, CSIR Madras Complex, Taramani, Chennai 600113, Tamil Nadu, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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33
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Zabelina A, Miliutina E, Dedek J, Trelin A, Zabelin D, Valiev R, Ramazanov R, Burtsev V, Popelkova D, Stastny M, Svorcik V, Lyutakov O. Nitrogen Photoelectrochemical Reduction on TiB 2 Surface Plasmon Coupling Allows Us to Reach Enhanced Efficiency of Ammonia Production. ACS Catal 2023; 13:10916-10926. [PMID: 37614521 PMCID: PMC10442910 DOI: 10.1021/acscatal.3c03210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 07/20/2023] [Indexed: 08/25/2023]
Abstract
Ammonia is one of the most widely produced chemicals worldwide, which is consumed in the fertilizer industry and is also considered an interesting alternative in energy storage. However, common ammonia production is energy-demanding and leads to high CO2 emissions. Thus, the development of alternative ammonia production methods based on available raw materials (air, for example) and renewable energy sources is highly demanding. In this work, we demonstrated the utilization of TiB2 nanostructures sandwiched between coupled plasmonic nanostructures (gold nanoparticles and gold grating) for photoelectrochemical (PEC) nitrogen reduction and selective ammonia production. The utilization of the coupled plasmon structure allows us to reach efficient sunlight capture with a subdiffraction concentration of light energy in the space, where the catalytically active TiB2 flakes were placed. As a result, PEC experiments performed at -0.2 V (vs. RHE) and simulated sunlight illumination give the 535.2 and 491.3 μg h-1 mgcat-1 ammonia yields, respectively, with the utilization of pure nitrogen and air as a nitrogen source. In addition, a number of control experiments confirm the key role of plasmon coupling in increasing the ammonia yield, the selectivity of ammonia production, and the durability of the proposed system. Finally, we have performed a series of numerical and quantum mechanical calculations to evaluate the plasmonic contribution to the activation of nitrogen on the TiB2 surface, indicating an increase in the catalytic activity under the plasmon-generated electric field.
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Affiliation(s)
- Anna Zabelina
- Department
of Solid State Engineering, University of
Chemistry and Technology, 16628 Prague, Czech
Republic
| | - Elena Miliutina
- Department
of Solid State Engineering, University of
Chemistry and Technology, 16628 Prague, Czech
Republic
| | - Jakub Dedek
- Department
of Solid State Engineering, University of
Chemistry and Technology, 16628 Prague, Czech
Republic
| | - Andrii Trelin
- Department
of Solid State Engineering, University of
Chemistry and Technology, 16628 Prague, Czech
Republic
| | - Denis Zabelin
- Department
of Solid State Engineering, University of
Chemistry and Technology, 16628 Prague, Czech
Republic
| | - Rashid Valiev
- Department
of Chemistry, University of Helsinki, FI-00014 Helsinki, Finland
| | - Ruslan Ramazanov
- Department
of Chemistry, University of Helsinki, FI-00014 Helsinki, Finland
| | - Vasilii Burtsev
- Department
of Solid State Engineering, University of
Chemistry and Technology, 16628 Prague, Czech
Republic
| | - Daniela Popelkova
- Institute
of Inorganic Chemistry, Czech Academy of
Sciences, 250 68 Husinec-Rez, Czech Republic
| | - Martin Stastny
- Institute
of Inorganic Chemistry, Czech Academy of
Sciences, 250 68 Husinec-Rez, Czech Republic
| | - Vaclav Svorcik
- Department
of Solid State Engineering, University of
Chemistry and Technology, 16628 Prague, Czech
Republic
| | - Oleksiy Lyutakov
- Department
of Solid State Engineering, University of
Chemistry and Technology, 16628 Prague, Czech
Republic
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34
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Zhang X, Yang G, Meng J, Qin L, Ren M, Pan Y, Yang Y, Guo Y. Acetamide- or Formamide-Assisted In Situ Approach to Carbon-Rich or Nitrogen-Deficient Graphitic Carbon Nitride for Notably Enhanced Visible-Light Photocatalytic Redox Performance. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2208012. [PMID: 36899451 DOI: 10.1002/smll.202208012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/21/2023] [Indexed: 06/15/2023]
Abstract
Acetamide- or formamide-assisted in situ strategy is designed to synthesize carbon atom self-doped g-C3 N4 (AHCNx ) or nitrogen vacancy-modified g-C3 N4 (FHCNx ). Different from the direct copolymerization route that suffers from the problem of mismatched physical properties of acetamide (or formamide) with urea, the synthesis of AHCNx (or FHCNx ) starts from a crucial preorganization step of acetamide (or formamide) with urea via freeze drying-hydrothermal treatment so that the chemical structures as well as C-doping level in AHCNx and N-vacancy concentration in FHCNx can be precisely regulated. By using various structural characterization methods, well-defined AHCNx and FHCNx structures are proposed. At the optimal C-doping level in AHCNx or N-vacancy concentration in FHCNx , both AHCNx and FHCNx exhibit remarkably improved visible-light photocatalytic performance in oxidation of emerging organic pollutants (acetaminophen and methylparaben) and reduction of proton to H2 in comparison of unmodified g-C3 N4 . Combination of the experimental results with theoretical calculations, it is confirmed that AHCNx and FHCNx show different charge separation and transfer mechanisms, while the enhanced visible-light harvesting capacity and the localized charge distributions on HOMO and LUMO are responsible for this excellent photocatalytic redox performance of AHCNx and FHCNx .
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Affiliation(s)
- Xueyan Zhang
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun, 130117, P. R. China
| | - Guang Yang
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun, 130117, P. R. China
| | - Jiaqi Meng
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun, 130117, P. R. China
| | - Lang Qin
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun, 130117, P. R. China
| | - Miao Ren
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun, 130117, P. R. China
| | - Yue Pan
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun, 130117, P. R. China
| | - Yuxin Yang
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun, 130117, P. R. China
| | - Yihang Guo
- School of Environment, Northeast Normal University, 2555 Jingyue Street, Changchun, 130117, P. R. China
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35
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Liu C, Zheng H, Wang T, Zhang X, Guo Z, Li H. Efficient asymmetrical silicon-metal dimer electrocatalysts for the nitrogen reduction reaction. Phys Chem Chem Phys 2023; 25:13126-13135. [PMID: 37129074 DOI: 10.1039/d2cp05959b] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The electrocatalytic nitrogen reduction reaction (ENRR) has been regarded as an eco-friendly and feasible substitute for the Haber-Bosch method. Identifying the effective catalysts for the ENRR is an extremely important prerequisite but challenging. Herein, asymmetrical silicon-metal dimer catalysts doped into g-C3N4 nanosheets with nitrogen vacancies (SiM@C3N4) were designed to address nitrogen activation and reduction. The concept catalysts of SiM@C3N4 can combine the advantages of silicon-based and metal-based catalysts during the ENRR. Among the catalysts investigated, SiMo@C3N4 and SiRu@C3N4 exhibited the highest activities towards the ENRR with ultra-low onset potentials of -0.20 and -0.39 V; meanwhile, they suppressed the competing hydrogen evolution reaction (HER) due to the relative difficulty in releasing hydrogen. Additionally, SiRu@C3N4 is demonstrated to possess strong hydrophobicity, which is greatly beneficial to the production of ammonia. This research provides insights into asymmetrical silicon-metal dimer catalysts and reveals a new method for developing dual-atom electrocatalysts. This asymmetrical dimer strategy can be applied in other electrocatalytic reactions for energy conversion.
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Affiliation(s)
- Chuangwei Liu
- Key Lab for Anisotropy and Texture of Materials, School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
| | - Haoren Zheng
- Key Lab for Anisotropy and Texture of Materials, School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
| | - Tianyi Wang
- Key Lab for Anisotropy and Texture of Materials, School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai 980-8577, Japan.
| | - Xiaoli Zhang
- School of Material Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Zhongyuan Guo
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai 980-8577, Japan.
| | - Hao Li
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai 980-8577, Japan.
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36
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Liu Y, Tayyab M, Pei W, Zhou L, Lei J, Wang L, Liu Y, Zhang J. The Precision Defect Engineering with Nonmetallic Element Refilling Strategy in g-C 3 N 4 for Enhanced Photocatalytic Hydrogen Production. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2208117. [PMID: 36840675 DOI: 10.1002/smll.202208117] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 01/27/2023] [Indexed: 05/25/2023]
Abstract
Traditional defect engineering and doping strategies are considered effective means for improving H2 evolution, but the uncontrollability of the modification process does not always lead to efficient activity. A defect-induced heteroatom refilling strategy is used here to synthesize heteroatoms introduced carbon nitride by precisely controlling the "introduction" sites on efficient N1 sites. Density functional theory calculations show that the refilling of B, P, and S sites have stronger H2 O adsorption and dissociation capacity than traditional doping, which makes it an optimal H2 production path. The large internal electric field strength of heteroatom-refilled catalysts leads to fast electron transfer and the hydrogen production of the best sample is up to 20.9 mmol g-1 h-1 . This work provides a reliable and clear insight into controlled defect engineering of photocatalysts and a universal modification strategy for typical heteroatom and co-catalyst systems for H2 production.
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Affiliation(s)
- Yujie Liu
- Key Laboratory for Advanced Materials, Shanghai Engineering Research Center for Multi media Environmental Catalysis and Resource Utilization, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
| | - Muhammad Tayyab
- Key Laboratory for Advanced Materials, Shanghai Engineering Research Center for Multi media Environmental Catalysis and Resource Utilization, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
| | - Wenkai Pei
- National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai, 200092, P. R. China
| | - Liang Zhou
- National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai, 200092, P. R. China
| | - Juying Lei
- National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai, 200092, P. R. China
| | - Lingzhi Wang
- Key Laboratory for Advanced Materials, Shanghai Engineering Research Center for Multi media Environmental Catalysis and Resource Utilization, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
| | - Yongdi Liu
- National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai, 200092, P. R. China
| | - Jinlong Zhang
- Key Laboratory for Advanced Materials, Shanghai Engineering Research Center for Multi media Environmental Catalysis and Resource Utilization, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, P. R. China
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37
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Si Q, Wang H, Kuang J, Liu B, Zheng S, Zhao Q, Jia W, Wu Y, Lu H, Wu Q, Yu T, Guo W. Light and nitrogen vacancy-intensified nonradical oxidation of organic contaminant with Mn (III) doped carbon nitride in peroxymonosulfate activation. JOURNAL OF HAZARDOUS MATERIALS 2023; 454:131463. [PMID: 37141778 DOI: 10.1016/j.jhazmat.2023.131463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/19/2023] [Accepted: 04/19/2023] [Indexed: 05/06/2023]
Abstract
Recently, Mn-based materials have a great potential for selective removal of organic contaminants with the assistance of oxidants (PMS, H2O2) and the direct oxidation. However, the rapid oxidation of organic pollutants by Mn-based materials in PMS activation still presents a challenge due to the lower conversion of surface Mn (III)/Mn (IV) and higher reactive energy barrier for reactive intermediates. Here, we constructed Mn (III) and nitrogen vacancies (Nv) modified graphite carbon nitride (MNCN) to break these aforementioned limitations. Through analysis of in-situ spectra and various experiments, a novel mechanism of light-assistance non-radical reaction is clearly elucidated in MNCN/PMS-Light system. Adequate results indicate that Mn (III) only provide a few electrons to decompose Mn (III)-PMS* complex under light irradiation. Thus, the lacking electrons necessarily are supplied from BPA, resulting in its greater removal, then the decomposition of the Mn (III)-PMS* complex and light synergism form the surface Mn (IV) species. Above Mn-PMS complex and surface Mn (IV) species lead to the BPA oxidation in MNCN/PMS-Light system without the involvement of sulfate (SO4• ̶) and hydroxyl radicals (•OH). The study provides a new understanding for accelerating non-radical reaction in light/PMS system for the selective removal of contaminant.
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Affiliation(s)
- Qishi Si
- State Key Laboratory of Urban Water Resource and Environment, Harbin Inst Technology, Harbin, Heilongjiang 150090 People's Republic of China
| | - Huazhe Wang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Inst Technology, Harbin, Heilongjiang 150090 People's Republic of China
| | - Junyan Kuang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Inst Technology, Harbin, Heilongjiang 150090 People's Republic of China
| | - Banghai Liu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Inst Technology, Harbin, Heilongjiang 150090 People's Republic of China
| | - Shanshan Zheng
- State Key Laboratory of Urban Water Resource and Environment, Harbin Inst Technology, Harbin, Heilongjiang 150090 People's Republic of China
| | - Qi Zhao
- State Key Laboratory of Urban Water Resource and Environment, Harbin Inst Technology, Harbin, Heilongjiang 150090 People's Republic of China
| | - Wenrui Jia
- State Key Laboratory of Urban Water Resource and Environment, Harbin Inst Technology, Harbin, Heilongjiang 150090 People's Republic of China
| | - Yaohua Wu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Inst Technology, Harbin, Heilongjiang 150090 People's Republic of China
| | - Hao Lu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Inst Technology, Harbin, Heilongjiang 150090 People's Republic of China
| | - Qinglian Wu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Inst Technology, Harbin, Heilongjiang 150090 People's Republic of China
| | - Tao Yu
- Tianjin Univ, Sch Chem Eng & Technol, Tianjin 300350, People's Republic of China
| | - Wanqian Guo
- State Key Laboratory of Urban Water Resource and Environment, Harbin Inst Technology, Harbin, Heilongjiang 150090 People's Republic of China.
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38
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Weng Z, Lin Y, Han B, Zhang X, Guo Q, Luo Y, Ou X, Zhou Y, Jiang J. Donor-acceptor engineered g-C 3N 4 enabling peroxymonosulfate photocatalytic conversion to 1O 2 with nearly 100% selectivity. JOURNAL OF HAZARDOUS MATERIALS 2023; 448:130869. [PMID: 36709733 DOI: 10.1016/j.jhazmat.2023.130869] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/12/2023] [Accepted: 01/24/2023] [Indexed: 06/18/2023]
Abstract
Singlet oxygen (1O2) is a thrilling active species for selectively oxidating organic substances. However, the efficient and selective generation of 1O2 maintains a great challenge. Here, we develop a donor-acceptor structured g-C3N4 by covalently engineering benzenetricarboxaldehyde (BTA) onto the fringe of g-C3N4. The g-C3N4-BTA exerts high-efficiency 1O2 generation with nearly 100% selectivity via peroxymonosulfate (PMS) photocatalytic activation upon visible light illumination, exhibiting obviously boosted efficiency for selective elimination of atrazine (ATZ). The consequences of experiments and theoretical calculations demonstrate that BTA units serve as electron-withdrawing sites to trap photogenerated electrons and facilitate the adsorption of PMS on the electron-deficient heptazine rings of g-C3N4. As such, PMS can be in-situ oxidated by the photogenerated holes to selectively produce 1O2. Besides, the g-C3N4-BTA/PMS system delivers high stability and strong resistance to the coexisting organic ions and natural organic matter, demonstrating great potential for selectively removing targeted organic contaminants with high efficiency.
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Affiliation(s)
- Zonglin Weng
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Yuanfang Lin
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Bin Han
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, PR China.
| | - Xinfei Zhang
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Qin Guo
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Yu Luo
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Xinwen Ou
- Department of Physics, Zhejiang University, Zheda Road 38, Hangzhou 310027, PR China
| | - Yang Zhou
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Jin Jiang
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, PR China
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39
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Fang Y, Zhou Z, Hou Y, Wang C, Cao X, Liu S, Shen Y, Zhang Y. Highly Efficient Wavelength-Resolved Electrochemiluminescence of Carbon Nitride Films for Ultrasensitive Multiplex MicroRNA Detection. Anal Chem 2023; 95:6620-6628. [PMID: 37040595 DOI: 10.1021/acs.analchem.2c05740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
The development of electrochemiluminescence (ECL) emitters of different colors with high ECL efficiency (ΦECL) is appealing yet challenging for ultrasensitive multiplexed bioassays. Herein, we report the synthesis of highly efficient polymeric carbon nitride (CN) films with fine-tuned ECL emission from blue to green (410, 450, 470, and 525 nm) using the precursor crystallization method. More importantly, naked eye-observable and significantly enhanced ECL emission was achieved, and the cathodic ΦECL values were ca. 112, 394, 353, and 251 times those of the aqueous Ru(bpy)3Cl2/K2S2O8 reference. Mechanism studies showed that the density of surface-trapped electrons, the associated nonradiative decay pathways, and electron-hole recombination kinetics were crucial factors for the high ΦECL of CN. Based on high ΦECL and different colors of ECL emission, the wavelength-resolved multiplexing ECL biosensor was constructed to simultaneously detect miRNA-21 and miRNA-141 with superior low detection limits of 0.13 fM and 25.17 aM, respectively. This work provides a facile method to synthesize wavelength-resolved ECL emitters based on metal-free CN polymers with high ΦECL for multiplexed bioassays.
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Affiliation(s)
- Yanfeng Fang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Devices, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Medical School, Southeast University, Nanjing 211189, China
| | - Zhixin Zhou
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Devices, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Medical School, Southeast University, Nanjing 211189, China
| | - Yuhua Hou
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Devices, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Medical School, Southeast University, Nanjing 211189, China
| | - Chenchen Wang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Devices, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Medical School, Southeast University, Nanjing 211189, China
| | - Xuwen Cao
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Devices, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Medical School, Southeast University, Nanjing 211189, China
| | - Songqin Liu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Devices, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Medical School, Southeast University, Nanjing 211189, China
| | - Yanfei Shen
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Devices, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Medical School, Southeast University, Nanjing 211189, China
| | - Yuanjian Zhang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Devices, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Medical School, Southeast University, Nanjing 211189, China
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40
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Cao L, Feng Z, Guo R, Tian Q, Wang W, Rong X, Zhou M, Cheng C, Ma T, Deng D. The direct catalytic synthesis of ultrasmall Cu 2O-coordinated carbon nitrides on ceria for multimodal antitumor therapy. MATERIALS HORIZONS 2023; 10:1342-1353. [PMID: 36723012 DOI: 10.1039/d2mh01540d] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Engineering chem-/sono-/photo-multimodal antitumor therapies has become an efficient strategy to combat malignant tumors. However, the existence of hypoxia in the tumor microenvironment (TME) leads to limited sonodynamic or photodynamic efficiency because O2 is the key reactant during the process of generation of reactive oxygen species (ROS). Here, to design a desirable platform that can simultaneously convert H2O2 in the TME into ROS and O2 for efficient chem-/sono-/photo-multimodal tumor therapies, we have created ultrasmall Cu2O-coordinated carbon nitride on a biocompatible ceria substrate (denoted as Cu2O-CNx@CeO2) via a self-assisted catalytic growth strategy. The chemical and morphological structures, ROS and O2 generation activities, and chemo-/photo-/sono-dynamic specificities of Cu2O-CNx@CeO2 when serving as multifunctional biocatalytic agents were systematically disclosed. The experimental studies validated that Cu2O-CNx@CeO2 presents state-of-the-art peroxidase-like and catalase-like activities. Moreover, the light excitation and ultrasound irradiation were also demonstrated to boost ROS production. The in vitro and in vivo experiments suggest that Cu2O-CNx@CeO2 can efficiently inhibit the growth of malignant melanoma via chem-/sono-/photo-multimodal antitumor ability. We believe that applying these new biocatalysts with dual catalytic activities of producing ROS and O2 will offer a new path for engineering multimodal nanoagents to combat malignant tumors.
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Affiliation(s)
- Lijian Cao
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing, 211198, P. R. China.
| | - Ziyan Feng
- Department of Ultrasound, West China Hospital, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610041, P. R. China.
| | - Ruiqian Guo
- Department of Ultrasound, West China Hospital, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610041, P. R. China.
| | - Qinyu Tian
- Institute of Orthopedics, The First Medical Center, Beijing Key Lab of Regenerative Medicine in Orthopedics, Chinese PLA General Hospital, Beijing, 100853, P. R. China
| | - Weiwen Wang
- Department of Ultrasound, West China Hospital, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610041, P. R. China.
| | - Xiao Rong
- Department of Ultrasound, West China Hospital, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610041, P. R. China.
| | - Mi Zhou
- Department of Ultrasound, West China Hospital, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610041, P. R. China.
| | - Chong Cheng
- Department of Ultrasound, West China Hospital, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610041, P. R. China.
- Med-X Center for Materials, Sichuan University, Chengdu, 610065, P. R. China
| | - Tian Ma
- Department of Ultrasound, West China Hospital, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610041, P. R. China.
| | - Dawei Deng
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing, 211198, P. R. China.
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Shi J, Wang H, Nie J, Yang T, Ju C, Pu K, Shi J, Zhao T, Li H, Xue J. Alkali-assisted engineering of ultrathin graphite phase carbon nitride nanosheets with carbon vacancy and cyano group for significantly promoting photocatalytic hydrogen peroxide generation under visible light: fast electron transfer channel. J Colloid Interface Sci 2023; 643:47-61. [PMID: 37044013 DOI: 10.1016/j.jcis.2023.03.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/13/2023] [Accepted: 03/31/2023] [Indexed: 04/08/2023]
Abstract
Exfoliating bulk graphite phase carbon nitride (g-C3N4) into 2D nanosheets is considered to be an effective method to enhance its photocatalytic activity. However, optical absorption capacity of the exfoliated g-C3N4 nanosheets are lower than that of the original bulk g-C3N4 due to the quantum size effect. Here, the ultrathin graphite phase carbon nitride nanosheets containing both carbon vacancy and cyano group (UCNS580) were prepared by two-step calcination in air with the assistance of KOH. The formation and position of carbon vacancy and cyano group were first investigated and determined. The simultaneous introduction of carbon vacancy and cyano group not only improved light absorption range and intensity of g-C3N4 nanosheets, but also more importantly constructed a fast transfer channel for photogenerated electrons, further enhancing the separation efficiency and migration ability of photogenerated carriers. The cyano group as the accumulation center of photogenerated electrons and the oxygen adsorption center increased the proportion of one-step two-electrons reaction path to efficiently generate H2O2. As a result, UCNS580 exhibited highly boosted H2O2 generation activity, its H2O2 production yield for 6 h reached 939 µmol/L and the formation rate was up to 4167 µM h-1 g-1, which was in priority in the reported literature under the same conditions.
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Affiliation(s)
- Jianhui Shi
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China.
| | - Hui Wang
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Jianhui Nie
- Department of Mechanical and Electrical Engineering, Jinzhong Vocational and Technical College, Jinzhong, PR China
| | - Tiantian Yang
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Chenke Ju
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Kaikai Pu
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Jiating Shi
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Ting Zhao
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Houfen Li
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Jinbo Xue
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, PR China
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42
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Liu S, Wang M, Ji H, Zhang L, Ni J, Li N, Qian T, Yan C, Lu J. Solvent-in-Gas System for Promoted Photocatalytic Ammonia Synthesis on Porous Framework Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211730. [PMID: 36646430 DOI: 10.1002/adma.202211730] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Indexed: 06/17/2023]
Abstract
Photocatalytic nitrogen reduction reaction (PNRR) is emerging as a sustainable ammonia synthesis approach to meet global carbon neutrality. Porous framework materials with well-designed structures have great opportunities in PNRR; however, they suffer from unsatisfactory activity in the conventional gas-in-solvent system (GIS), owing to the hindrance of nitrogen utilization and strong competing hydrogen evolution caused by overwhelming solvent. In this study, porous framework materials are combined with a novel "solvent-in-gas" system, which can bring their superiority into full play. This system enables photocatalysts to directly operate in a gas-dominated environment with a limited proton source uniformly suspended in it, achieving the accumulation of high-concentrated nitrogen within porous framework while efficiently restricting the solvent-photocatalyst contact. An over eightfold increase in ammonia production rate (1820.7 µmol g-1 h-1 ) compared with the conventional GIS and an apparent quantum efficiency as high as ≈0.5% at 400 nm are achieved. This system-level strategy further finds applicability in photocatalytic CO2 reduction, featuring it as a staple for photosynthetic methodology.
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Affiliation(s)
- Sisi Liu
- College of Energy, Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, Soochow University, Suzhou, 215006, China
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, China
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Mengfan Wang
- College of Energy, Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, Soochow University, Suzhou, 215006, China
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, China
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Haoqing Ji
- College of Energy, Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, Soochow University, Suzhou, 215006, China
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, China
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Lifang Zhang
- College of Energy, Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, Soochow University, Suzhou, 215006, China
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, China
| | - Jiajie Ni
- College of Energy, Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, Soochow University, Suzhou, 215006, China
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Najun Li
- College of Energy, Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, Soochow University, Suzhou, 215006, China
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Tao Qian
- College of Energy, Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, Soochow University, Suzhou, 215006, China
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, China
| | - Chenglin Yan
- College of Energy, Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, Soochow University, Suzhou, 215006, China
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, China
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Jianmei Lu
- College of Energy, Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, Soochow University, Suzhou, 215006, China
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu, 215123, China
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43
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Qi C, Chen H, Chen X, Chu C, Mei X, Lu W, Li N. In-situ-reduced synthesis of cyano group modified g-C 3N 4/CaCO 3 composite with highly enhanced photocatalytic activity for nicotine elimination. J Environ Sci (China) 2023; 126:517-530. [PMID: 36503778 DOI: 10.1016/j.jes.2022.03.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/21/2022] [Accepted: 03/10/2022] [Indexed: 06/17/2023]
Abstract
Graphite carbon nitride has many excellent properties as a two-dimensional semiconductor material so that it has a wide application prospect in the field of photocatalysis. However, the traditional problems such as high recombination rate of photogenerated carriers limit its application. In this work, we introduce nitrogen deficiency into g-C3N4 to solve this problem a simple and safe in-situ reduction method. g-C3N4/CaCO3 was obtained by a simple and safe one-step calcination method with industrial-grade micron particles CaCO3. Cyano group modification was in-situ reduced during the thermal polymerization process, which would change the internal electronic structure of g-C3N4. The successful combination of g-C3N4 and CaCO3 and the introduction of cyanide have been proved by Fourier transform infrared spectroscopy and X-ray photoelectron spectrometer. The formation of the cyano group, an electron-absorbing group, promotes the effective separation of photogenic electron hole pairs and inhibits the recombination of photogenic carriers. These advantages result in the generation of more •O2- and 1O2 in the catalytic system, which increases the photocatalytic efficiency of nicotine degradation by ten times. Furthermore, the degradation process of nicotine has been studied in this work to provide a basis for the degradation of nicotine organic pollutants in the air.
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Affiliation(s)
- Chenxiao Qi
- National Engineering Lab for Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Haixiang Chen
- National Engineering Lab for Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Xiufang Chen
- National Engineering Lab for Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Chengyu Chu
- National Engineering Lab for Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Xueting Mei
- National Engineering Lab for Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Wangyang Lu
- National Engineering Lab for Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Nan Li
- National Engineering Lab for Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou 310018, China.
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44
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Ju L, Tang X, Zhang Y, Li X, Cui X, Yang G. Single Selenium Atomic Vacancy Enabled Efficient Visible-Light-Response Photocatalytic NO Reduction to NH3 on Janus WSSe Monolayer. Molecules 2023; 28:molecules28072959. [PMID: 37049721 PMCID: PMC10095809 DOI: 10.3390/molecules28072959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/22/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023] Open
Abstract
The NO reduction reaction (NORR) toward NH3 is simultaneously emerging for both detrimental NO elimination and valuable NH3 synthesis. An efficient NORR generally requires a high degree of activation of the NO gas molecule from the catalyst, which calls for a powerful chemisorption. In this work, by means of first-principles calculations, we discovered that the NO gas molecule over the Janus WSSe monolayer might undergo a physical-to-chemical adsorption transition when Se vacancy is introduced. If the Se vacancy is able to work as the optimum adsorption site, then the interface’s transferred electron amounts are considerably increased, resulting in a clear electronic orbital hybridization between the adsorbate and substrate, promising excellent activity and selectivity for NORR. Additionally, the NN bond coupling and *N diffusion of NO molecules can be effectively suppressed by the confined space of Se vacancy defects, which enables the active site to have the superior NORR selectivity in the NH3 synthesis. Moreover, the photocatalytic NO-to-NH3 reaction is able to occur spontaneously under the potentials solely supplied by the photo-generated electrons. Our findings uncover a promising approach to derive high-efficiency photocatalysts for NO-to-NH3 conversion.
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45
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Wang N, Cheng L, Liao Y, Xiang Q. Effect of Functional Group Modifications on the Photocatalytic Performance of g-C 3 N 4. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2300109. [PMID: 36965084 DOI: 10.1002/smll.202300109] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/03/2023] [Indexed: 06/18/2023]
Abstract
In recent years, photocatalysis has received increasing attention in alleviating energy scarcity and environmental treatment, and graphite carbon nitride (g-C3 N4 ) is used as an ideal photocatalyst. However, it still remains numerous challenges to obtain the desirable photocatalytic performance of intrinsic g-C3 N4 . Functional group functionalization, formed by introducing functional groups into the bulk structure, is one of the common modification techniques to modulate the carrier dynamics and increases the number of active sites, offering new opportunities to break the limits for structure-to-performance relationship of g-C3 N4 . Nevertheless, the general overview of the advance of functional group modification of g-C3 N4 is less reported yet. In order to better understand the structure-to-performance relationship at the molecular level, a review of the latest development of functional group modification is urgently needed. In this review, the functional group modification of g-C3 N4 in terms of structures, properties, and photocatalytic activity is mainly focused, as well as their mechanism of reaction from the molecular level insights is explained. Second, the recent progress of the application of introducing functional groups in g-C3 N4 is introduced and examples are given. Finally, the difficulties and challenges are presented, and based on this, an outlook on the future research development direction is shown.
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Affiliation(s)
- Na Wang
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, P. R. China
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Lei Cheng
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, P. R. China
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Yulong Liao
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Quanjun Xiang
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, P. R. China
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
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Wang G, Wu Y, Li Z, Lou Z, Chen Q, Li Y, Wang D, Mao J. Engineering a Copper Single-Atom Electron Bridge to Achieve Efficient Photocatalytic CO 2 Conversion. Angew Chem Int Ed Engl 2023; 62:e202218460. [PMID: 36749548 DOI: 10.1002/anie.202218460] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/27/2023] [Accepted: 02/06/2023] [Indexed: 02/08/2023]
Abstract
Developing highly efficient and stable photocatalysts for the CO2 reduction reaction (CO2 RR) remains a great challenge. We designed a Z-Scheme photocatalyst with N-Cu1 -S single-atom electron bridge (denoted as Cu-SAEB), which was used to mediate the CO2 RR. The production of CO and O2 over Cu-SAEB is as high as 236.0 and 120.1 μmol g-1 h-1 in the absence of sacrificial agents, respectively, outperforming most previously reported photocatalysts. Notably, the as-designed Cu-SAEB is highly stable throughout 30 reaction cycles, totaling 300 h, owing to the strengthened contact interface of Cu-SAEB, and mediated by the N-Cu1 -S atomic structure. Experimental and theoretical calculations indicated that the SAEB greatly promoted the Z-scheme interfacial charge-transport process, thus leading to great enhancement of the photocatalytic CO2 RR of Cu-SAEB. This work represents a promising platform for the development of highly efficient and stable photocatalysts that have potential in CO2 conversion applications.
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Affiliation(s)
- Gang Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, P. R. China
| | - Yan Wu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, P. R. China
| | - Zhujie Li
- Advanced Technology Research Institute, Beijing Institute of Technology, Jinan, 250300, P. R. China
| | - Zaizhu Lou
- Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Institute of Nanophotonics, Jinan University, Guangzhou, 511443, P. R. China
| | - Qingqing Chen
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, P. R. China
| | - Yifan Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, P. R. China
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Junjie Mao
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, P. R. China
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47
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Fu M, Mao Y, Wang H, Luo W, Jiang Y, Shen W, Li M, He R. Enhancing the electrocatalytic performance of nitrate reduction to ammonia by in-situ nitrogen leaching. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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48
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Wang J, Li P, Wang Y, Liu Z, Wang D, Liang J, Fan Q. New Strategy for the Persistent Photocatalytic Reduction of U(VI): Utilization and Storage of Solar Energy in K + and Cyano Co-Decorated Poly(Heptazine Imide). ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205542. [PMID: 36511158 PMCID: PMC9929247 DOI: 10.1002/advs.202205542] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/30/2022] [Indexed: 06/17/2023]
Abstract
The photocatalytic conversion of soluble U(VI) into insoluble U(IV) is a robust strategy to harvest aqueous uranium, but remains challenging owing to the intermittent availability of solar influx and reoxidation of U(IV) without illumination. Herein, a dual platform based on K+ and cyano group co-decorated poly(heptazine imide) (K-CN-PHI) is reported that can drive persistent U(VI) extraction upon/beyond light. K-CN-PHI achieves the photocatalytic reduction of U(VI) with a reaction rate of 0.89 min-1 , being 47 times greater than that over pristine carbon nitride (PCN). This system can further be triggered by light to form long-living radicals, driving the reduction of U(VI) in the dark for over 3 d. The flexible structural K+ as counterions stabilize the electrons trapped by cyanamide groups, enabling the long lifetime of the generated radicals. The results collectively prove K-CN-PHI to be a novel and efficient photocatalyst enabling persistent U(VI) extraction around the clock, and broadening the practical applications of the photocatalytic extraction of U(VI).
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Affiliation(s)
- Jingjing Wang
- Northwest Institute of Eco‐Environment ResourcesChinese Academy of SciencesLanzhou730000P. R. China
- Key Laboratory of Petroleum ResourcesGansu ProvinceLanhzou730000China
| | - Ping Li
- Northwest Institute of Eco‐Environment ResourcesChinese Academy of SciencesLanzhou730000P. R. China
- Key Laboratory of Petroleum ResourcesGansu ProvinceLanhzou730000China
| | - Yun Wang
- Northwest Institute of Eco‐Environment ResourcesChinese Academy of SciencesLanzhou730000P. R. China
- Key Laboratory of Petroleum ResourcesGansu ProvinceLanhzou730000China
| | - Ziyi Liu
- State Key Laboratory of Fine ChemicalsLiaoning Key Laboratory for Catalytic Conversion of Carbon ResourcesSchool of Chemical EngineeringDalian University of TechnologyDalian116024P. R. China
- CAS Key Laboratory Nuclear Radiation & Nuclear Energy Technologyand Multidisciplinary Initiative CenterInstitute of High Energy PhysicsChinese Academy of SciencesBeijing100049P. R. China
| | - Dongqi Wang
- State Key Laboratory of Fine ChemicalsLiaoning Key Laboratory for Catalytic Conversion of Carbon ResourcesSchool of Chemical EngineeringDalian University of TechnologyDalian116024P. R. China
- CAS Key Laboratory Nuclear Radiation & Nuclear Energy Technologyand Multidisciplinary Initiative CenterInstitute of High Energy PhysicsChinese Academy of SciencesBeijing100049P. R. China
| | - Jianjun Liang
- Northwest Institute of Eco‐Environment ResourcesChinese Academy of SciencesLanzhou730000P. R. China
- Key Laboratory of Petroleum ResourcesGansu ProvinceLanhzou730000China
| | - Qiaohui Fan
- Northwest Institute of Eco‐Environment ResourcesChinese Academy of SciencesLanzhou730000P. R. China
- Key Laboratory of Petroleum ResourcesGansu ProvinceLanhzou730000China
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49
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Chen L, Gao Y, Lian J, Li L, Ding D, Dai Z. Efficient photoreduction removal of uranium(VI) by O, K co-doped g-C3N4 under air atmosphere without sacrificial agents. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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50
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Generation Mechanism of the Defects in g-C3N4 Synthesized in N2 Atmosphere and the Method for Improving Photocatalysis Activity. Catalysts 2023. [DOI: 10.3390/catal13020269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
One of the most important methods for modifying semiconductors is defect engineering, but only the right quantity of defects in the right chemical environment can produce desirable results. Heat treatment processes associated with g-C3N4 are occasionally carried out in N2 atmosphere, however, the catalytic performance of g-C3N4 produced by direct condensation of only nitrogen-rich precursors in N2 atmosphere is often unsatisfactory. This is typically attributed to the introduction of numerous defects, but the actual relationship between the formation of defects and the N2 atmosphere is rarely explained, and the resulting quantity of defects is difficult to control. We propose that the melam to melem transition is restricted due to the lack of O2 during the heat treatment of the nitrogen-rich precursor of g-C3N4 in N2 atmosphere, which leads to a substantial quantity of defects in the synthesized g-C3N4. To enhance its photocatalytic property, we propose a method to reduce the quantity of defects due to calcinating in N2 atmosphere by protonating the precursor in a way that increases the polymerization of the product. The test analysis indicated that only a moderate quantity of defects that contribute to electron excitation and enhance the separation efficiency and density of photogenerated carriers were retained, and the hydrogen evolution performance of the prepared catalyst was significantly improved.
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