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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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Cui D, Yang X, Zhang T, Li M, Li F. Construction of Fe(III) Active Sites on Phenanthroline-Grafted g-C 3N 4: Reduced Work Function and Enhanced Intramolecular Charge Transfer for Efficient N 2 Photofixation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:30040-30054. [PMID: 38813971 DOI: 10.1021/acsami.4c03370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Photocatalytic nitrogen fixation is one of the important pathways for green and sustainable ammonia synthesis, but the extremely high bonding energy of the N≡N triple bond makes it difficult for conventional nitrogen fixation photocatalysts to directly activate and hydrogenate. Given this, we covalently grafted the phenanthroline unit onto graphitic carbon nitride nanosheets (CN) by the simple thermal oxidation method and complexed it with transition metal Fe3+ ions to obtain stable dispersed Fe active sites, which can significantly improve the photocatalytic activity. The Fe(III)-4-P-CN photocatalyst morphology consists of porous lamellar structures internally connected by nanowires. The special morphology of the catalysts gives them excellent nitrogen fixation performance, with an average NH3 yield of 492.9 μmol g-1 h-1, which is 6.5 times higher than that of the pristine CN, as well as better photocatalytic cycling stability. Comprehensive experiments and density-functional theory results show that Fe(III)-4-P-CN is more favorable than pristine CN for *N2 activation, effectively lowering the reaction energy barrier. Moreover, other byproducts (such as nitrate and H2O2) are also produced during the photocatalytic nitrogen fixation process, which also provides a new way for nitrogen-fixing photocatalysts to achieve multifunctional applications.
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Affiliation(s)
- Donghui Cui
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, College of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Xue Yang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, College of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Tingting Zhang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, College of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Meixi Li
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, College of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Fengyan Li
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, College of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
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3
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Wen F, Liu S, Huang X, Pang L, Li C, Liu H. Photocatalytic Synthesis of Ammonia from Hollow Coral-Like Graphitic Carbon Nitride/FeOCl Loaded with Fe-1T MoS 2 Nanosheets as Cocatalysts. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:12207-12215. [PMID: 38822806 DOI: 10.1021/acs.langmuir.4c01283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2024]
Abstract
Photocatalytic ammonia synthesis (PAS) represents an emerging environmentally friendly approach to ammonia production. In this work, we employed Fe doping to modify the cocatalyst 1T MoS2, enhancing the active N2 sites on Fe-1T MoS2 by inducing defects on the surface of 1T MoS2. Afterward, Fe-1T MoS2 was loaded onto a hollow coral-like graphitic carbon nitride (CCN)/FeOCl composite. Under simulated sunlight, the efficiency of 5% Fe-1T MoS2@CCN/FeOCl (Fe-MCN/FeOCl) reached 367.62 μmol g-1 h-1, surpassing 1T MoS2@CCN(MCN) by 3.2 times, CCN by 16.9 times, and g-C3N4 by 32.5 times, where 5% means the doping amount of Fe in 1T MoS2. The good performance of Fe MCN/FeOCl should be attributed to the Fe doping in Fe-MCN/FeOCl which not only increases the separation efficiency of active sites and charge carriers, but also reduces the sample impedance significantly through the heterojunction formed between CCN and FeOCl. This work also presents a method for creating more efficient and stable photocatalysts for ammonia synthesis.
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Affiliation(s)
- Fushan Wen
- College of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Shichuang Liu
- College of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Xiaoli Huang
- College of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Le Pang
- College of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Changdi Li
- College of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Hailong Liu
- College of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China
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4
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Hou S, Gao X, Lv X, Zhao Y, Yin X, Liu Y, Fang J, Yu X, Ma X, Ma T, Su D. Decade Milestone Advancement of Defect-Engineered g-C 3N 4 for Solar Catalytic Applications. NANO-MICRO LETTERS 2024; 16:70. [PMID: 38175329 PMCID: PMC10766942 DOI: 10.1007/s40820-023-01297-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 11/17/2023] [Indexed: 01/05/2024]
Abstract
Over the past decade, graphitic carbon nitride (g-C3N4) has emerged as a universal photocatalyst toward various sustainable carbo-neutral technologies. Despite solar applications discrepancy, g-C3N4 is still confronted with a general fatal issue of insufficient supply of thermodynamically active photocarriers due to its inferior solar harvesting ability and sluggish charge transfer dynamics. Fortunately, this could be significantly alleviated by the "all-in-one" defect engineering strategy, which enables a simultaneous amelioration of both textural uniqueness and intrinsic electronic band structures. To this end, we have summarized an unprecedently comprehensive discussion on defect controls including the vacancy/non-metallic dopant creation with optimized electronic band structure and electronic density, metallic doping with ultra-active coordinated environment (M-Nx, M-C2N2, M-O bonding), functional group grafting with optimized band structure, and promoted crystallinity with extended conjugation π system with weakened interlayered van der Waals interaction. Among them, the defect states induced by various defect types such as N vacancy, P/S/halogen dopants, and cyano group in boosting solar harvesting and accelerating photocarrier transfer have also been emphasized. More importantly, the shallow defect traps identified by femtosecond transient absorption spectra (fs-TAS) have also been highlighted. It is believed that this review would pave the way for future readers with a unique insight into a more precise defective g-C3N4 "customization", motivating more profound thinking and flourishing research outputs on g-C3N4-based photocatalysis.
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Affiliation(s)
- Shaoqi Hou
- School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney (UTS), Sydney, NSW, 2007, Australia
| | - Xiaochun Gao
- Laboratory of Plasma and Energy Conversion, School of Physics and Optoelectronic Engineering, Ludong University, 186 Middle Hongqi Road, Yantai, 264025, People's Republic of China.
| | - Xingyue Lv
- Laboratory of Plasma and Energy Conversion, School of Physics and Optoelectronic Engineering, Ludong University, 186 Middle Hongqi Road, Yantai, 264025, People's Republic of China
| | - Yilin Zhao
- Laboratory of Plasma and Energy Conversion, School of Physics and Optoelectronic Engineering, Ludong University, 186 Middle Hongqi Road, Yantai, 264025, People's Republic of China
| | - Xitao Yin
- Laboratory of Plasma and Energy Conversion, School of Physics and Optoelectronic Engineering, Ludong University, 186 Middle Hongqi Road, Yantai, 264025, People's Republic of China
| | - Ying Liu
- Laboratory of Plasma and Energy Conversion, School of Physics and Optoelectronic Engineering, Ludong University, 186 Middle Hongqi Road, Yantai, 264025, People's Republic of China
| | - Juan Fang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
| | - Xingxing Yu
- Department of Chemistry, The University of Tokyo, 7-3-1 Hogo, Bunkyo, Tokyo, Japan
| | - Xiaoguang Ma
- Laboratory of Plasma and Energy Conversion, School of Physics and Optoelectronic Engineering, Ludong University, 186 Middle Hongqi Road, Yantai, 264025, People's Republic of China.
| | - Tianyi Ma
- School of Science, STEM College, RMIT University, Melbourne, VIC, 3000, Australia.
| | - Dawei Su
- School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney (UTS), Sydney, NSW, 2007, Australia.
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5
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Teja YN, Sakar M. Comprehensive Insights into the Family of Atomically Thin 2D-Materials for Diverse Photocatalytic Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303980. [PMID: 37461252 DOI: 10.1002/smll.202303980] [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: 05/11/2023] [Revised: 07/05/2023] [Indexed: 11/16/2023]
Abstract
2D materials with their fascinating physiochemical, structural, and electronic properties have attracted researchers and have been used for a variety of applications such as electrocatalysis, photocatalysis, energy storage, magnetoresistance, and sensing. In recent times, 2D materials have gained great momentum in the spectrum of photocatalytic applications such as pollutant degradation, water splitting, CO2 reduction, NH3 production, microbial disinfection, and heavy metal reduction, thanks to their superior properties including visible light responsive band gap, improved charge separation and electron mobility, suppressed charge recombination and high surface reactive sites, and thus enhance the photocatalytic properties rationally as compared to 3D and other low-dimensional materials. In this context, this review spot-lights the family of various 2D materials, their properties and their 2D structure-induced photocatalytic mechanisms while giving an overview on their synthesis methods along with a detailed discussion on their diverse photocatalytic applications. Furthermore, the challenges and the future opportunities are also presented related to the future developments and advancements of 2D materials for the large-scale real-time photocatalytic applications.
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Affiliation(s)
- Y N Teja
- Centre for Nano and Material Sciences, Jain (Deemed to be) University, Jain Global Campus, Kanakapura, Bangalore, Karnataka, 562112, India
| | - Mohan Sakar
- Centre for Nano and Material Sciences, Jain (Deemed to be) University, Jain Global Campus, Kanakapura, Bangalore, Karnataka, 562112, India
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6
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Kumar A, Sharma M, Sheoran S, Jaiswal S, Patra A, Bhattacharya S, Krishnan V. Tailoring defects in SrTiO 3 by one step nanoarchitectonics for realizing photocatalytic nitrogen fixation in pure water. NANOSCALE 2023. [PMID: 37378646 DOI: 10.1039/d3nr01982a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
Surface contamination of materials by nitrogenous impurities is a major problem that can bias the quantification of ammonia in photocatalytic N2 fixation reactions. In this work, SrTiO3 nanocubes were prepared by using a nitrogenous precursor and engineered with Ti3+ sites and oxygen vacancy defects in a one-step solvothermal approach. It was observed that the synthesized materials were containing surface nitrogenous impurities and therefore a rigorous cleaning procedure was adopted to eliminate them to the best extent. The contribution of unavoidable surface impurities was deduced in the form of adventitious NH3 by employing control experiments and a realistic photocatalytic NH3 generation was achieved. It was found that pristine SrTiO3 showed no photocatalytic activity, whereas one of the defected SrTiO3 materials showed the highest NH3 formation under natural sunlight in pure water, which was ascribed to the tuned defect sites, enhanced surface area and efficient separation of photogenerated charges. Based on the experimental results, a stringent protocol has been suggested for materials synthesis while working with nitrogenous precursors and for subsequent photocatalytic N2 fixation experiments. Thus, the present study provides a simple and affordable procedure for catalyst synthesis for the studied application and expands the scope of perovskite oxide materials to fabricate efficient photocatalysts for sustainable NH3 production.
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Affiliation(s)
- Ashish Kumar
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi 175075, Himachal Pradesh, India.
- Department of Chemistry, Sardar Patel University Mandi, Mandi 175001, Himachal Pradesh, India
| | - Manisha Sharma
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi 175075, Himachal Pradesh, India.
| | - Sajjan Sheoran
- Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India.
| | - Shilpi Jaiswal
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Madhya Pradesh 462066, India.
| | - Abhijit Patra
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Madhya Pradesh 462066, India.
| | - Saswata Bhattacharya
- Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India.
| | - Venkata Krishnan
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi 175075, Himachal Pradesh, India.
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Zhang W, Liu T, Tan Q, Li J, Ma Y, He Y, Han D, Qin D, Niu L. Atomically Precise Dinuclear Ni 2 Active Site-Modified MOF-Derived ZnO@NC Heterojunction toward High-Performance N 2 Photofixation. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Affiliation(s)
- Wensheng Zhang
- School of Civil Engineering c/o Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou Key Laboratory of Sensing Materials & Devices, Guangzhou University, Guangzhou 510006, P. R. China
| | - Tianren Liu
- School of Civil Engineering c/o Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou Key Laboratory of Sensing Materials & Devices, Guangzhou University, Guangzhou 510006, P. R. China
| | - Qingmei Tan
- School of Civil Engineering c/o Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou Key Laboratory of Sensing Materials & Devices, Guangzhou University, Guangzhou 510006, P. R. China
| | - Jianshen Li
- School of Civil Engineering c/o Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou Key Laboratory of Sensing Materials & Devices, Guangzhou University, Guangzhou 510006, P. R. China
| | - Yuangong Ma
- School of Civil Engineering c/o Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou Key Laboratory of Sensing Materials & Devices, Guangzhou University, Guangzhou 510006, P. R. China
| | - Ying He
- School of Civil Engineering c/o Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou Key Laboratory of Sensing Materials & Devices, Guangzhou University, Guangzhou 510006, P. R. China
| | - Dongxue Han
- School of Civil Engineering c/o Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou Key Laboratory of Sensing Materials & Devices, Guangzhou University, Guangzhou 510006, P. R. China
- Guangdong Provincial Key Laboratory of Psychoactive Substances Monitoring and Safety, Anti-Drug Technology Center of Guangdong Province, Guangzhou 510230, P. R. China
| | - Dongdong Qin
- School of Civil Engineering c/o Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou Key Laboratory of Sensing Materials & Devices, Guangzhou University, Guangzhou 510006, P. R. China
| | - Li Niu
- School of Civil Engineering c/o Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou Key Laboratory of Sensing Materials & Devices, Guangzhou University, Guangzhou 510006, P. R. China
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8
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Photon driven nitrogen fixation via Ni-incorporated ZrO2/Bi2O3: p-n heterojunction. Catal Today 2023. [DOI: 10.1016/j.cattod.2023.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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9
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Zhang Q, Zhou C, Shi X, Zhou Y, Ye Q, Li D, Tian D, Jiang D. Bismuth nanoparticles and oxygen vacancies synergistically modified HNb3O8 nanosheets for enhanced photocatalytic N2 reduction towards NH3. J Colloid Interface Sci 2023; 630:721-730. [DOI: 10.1016/j.jcis.2022.10.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/08/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022]
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10
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Chen Y, Yu M, Huang G, Chen Q, Bi J. Interlayer Charge Transfer Over Graphitized Carbon Nitride Enabling Highly-Efficient Photocatalytic Nitrogen Fixation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2205388. [PMID: 36344463 DOI: 10.1002/smll.202205388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/11/2022] [Indexed: 06/16/2023]
Abstract
Exploiting cost-effective, high-efficiency, and contamination-free semiconductors for photocatalytic nitrogen reduction reaction (N2 RR) is still a great challenge, especially in sacrificial-free system. On basis of the electron "acceptance-donation" concept, a boron-doped and carbon-deficient g-C3 N4 (Bx CvN) is herein developed through precise dopant and defect engineering. The optimized B15 CvN exhibisted an NH3 production rate of 135.3 µmol h-1 g-1 in pure water with nine-fold enhancement to the pristine graphitic carbon nitride (g-C3 N4 ), on account of the markedly elevated visible-light harvesting, N2 activation, and multi-directional photoinduced carriers transfer. The decorated B atoms with coexistent occupied and empty sp3 hybridized orbitals are theoretically proved to be in charge of the increase of N2 adsorption energy from -0.08 to -0.26 eV and the change in N2 adsorption model from one-way to two-way end-on pattern. Noticeably, the elaborate coordination of doped B atoms and carbon vacancies greatly facilitated the interlayer interaction and vertical charge migration of Bx CvN, which is distinctly revealed through the charge density difference calculations. The current study provides an alternative groundbreaking perspective for advancing photocatalytic N2 RR through the targeted configuration of the defect and dopant sites.
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Affiliation(s)
- Yueling Chen
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, China
| | - Mingfei Yu
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, China
| | - Guocheng Huang
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, China
| | - Qiaoshan Chen
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, China
| | - Jinhong Bi
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, China
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Minhou, Fujian, 350108, China
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11
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Evaluation of reactive oxygen species and photocatalytic degradation of ethylene using β-Ag2MoO4/g-C3N4 composites. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Lin X, Ng SF, Ong WJ. Coordinating single-atom catalysts on two-dimensional nanomaterials: A paradigm towards bolstered photocatalytic energy conversion. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214743] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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13
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Sun H, Zhou T, Kang J, Zhao Y, Zhang Y, Wang T, Yin X. High-efficient degradation of oxytetracycline by visible photo-Fenton process using MnFe2O4/g-C3N4: Performance and mechanisms. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121771] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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14
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Jiang H, Zang C, Guo L, Gao X. Carbon vacancies enriched carbon nitride nanotubes for Pd coordination environment optimization: Highly efficient photocatalytic hydrodechlorination and CO 2 cycloaddition. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:155920. [PMID: 35588820 DOI: 10.1016/j.scitotenv.2022.155920] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/05/2022] [Accepted: 05/10/2022] [Indexed: 06/15/2023]
Abstract
The use of easily available solar energy to achieve pollutants efficient degradation and waste carbon resource CO2 utilization under mild conditions is highly desired. Herein, novel carbon vacancies enriched nanotubes graphitic carbon nitride (SCNT-500) has been successfully fabricated via melamine (MA) supramolecular hydrogen-bonded self-assembly in the presence of H2SO4. Pd NPs loaded carbon vacancies enriched carbon nitride nanotubes (Pd/SCNT-500) were used for photocatalytic chlorophenols hydrodechlorination and CO2 cycloaddition with styrene oxide. Up to 6.93 s-1 4-chlorophenol hydrodechlorination TOF and obviously improved CO2 cycloaddition efficiency could be realized with Pd/SCNT-500. The improved photocatalytic efficiency should be related to the morphology and carbon vacancies based Pd coordination environment optimization. Such as, the surface area increased nanotubes structure promoted light harvesting along with photoelectrons and holes generation; the carbon vacancies improved excited electrons capture, photoinduced carriers recombination inhibition along with substrates adsorption with electron rich Pd NPs. Mechanism studies not only demonstrated the important role of atomic hydrogen and Pd coordination environment optimization in the chlorophenols hydrodechlorination, but also confirmed the promotion ability of photogenerated electrons on CO2 cycloaddition.
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Affiliation(s)
- Heyan Jiang
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, PR China; Chongqing Key Laboratory of Catalysis and New Environmental Materials, Chongqing 400067, PR China; Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, PR China.
| | - Cuicui Zang
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, PR China; Chongqing Key Laboratory of Catalysis and New Environmental Materials, Chongqing 400067, PR China
| | - Lixia Guo
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, PR China; Chongqing Key Laboratory of Catalysis and New Environmental Materials, Chongqing 400067, PR China
| | - Xue Gao
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, PR China; Chongqing Key Laboratory of Catalysis and New Environmental Materials, Chongqing 400067, PR China
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15
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Li G, Zeng G, Chen Z, Hong J, Ji X, Lan Z, Tan X, Li M, Hu X, Tang C. In Situ Coupling Carbon Defective C 3N 5 Nanosheet with Ag 2CO 3 for Effective Degradation of Methylene Blue and Tetracycline Hydrochloride. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2701. [PMID: 35957132 PMCID: PMC9370685 DOI: 10.3390/nano12152701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/28/2022] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
The development of novel catalysts for degrading organic contaminants in water is a current hot topic in photocatalysis research for environmental protection. In this study, C3N5 nanosheet/Ag2CO3 nanocomposites (CNAC-X) were used as efficient photocatalysts for the visible-light-driven degradation of methylene blue (MB), and tetracycline hydrochloride (TC-HCl) was synthesized for the first time using a simple thermal oxidative exfoliation and in situ deposition method. Due to the synergistic effect of nanosheet structures, carbon defects, and Z-scheme heterojunctions, CNAC-10 exhibited the highest photocatalytic activity, with photodegradation efficiencies of 96.5% and 97.6% for MB (60 mg/L) and TC-HCl (50 mg/L) within 90 and 100 min, respectively. The radical trapping experiments showed that ·O2- and h+ played major roles in the photocatalytic effect of the CNAC-10 system. Furthermore, intermediates in the photodegradation of MB and TC-HCl were investigated to determine possible mineralization pathways. The results indicated that C3N5 nanosheet/Ag2CO3 photocatalysts prepared in this work could provide an effective reference for the treatment of organic wastewater.
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Affiliation(s)
- Guoyu Li
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Genying Zeng
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Zhangkai Chen
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Jiaming Hong
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Xiaodong Ji
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Zhiqiang Lan
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Xiaofei Tan
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Meifang Li
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Xinjiang Hu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Chunfang Tang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
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16
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Lin B, Xia M, Xu B, Chong B, Chen Z, Yang G. Bio-inspired nanostructured g-C3N4-based photocatalysts: A comprehensive review. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(22)64110-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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17
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Zhang L, Hou S, Wang T, Liu S, Gao X, Wang C, Wang G. Recent Advances in Application of Graphitic Carbon Nitride-Based Catalysts for Photocatalytic Nitrogen Fixation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2202252. [PMID: 35710700 DOI: 10.1002/smll.202202252] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/23/2022] [Indexed: 06/15/2023]
Abstract
Ammonia, the second most-produced chemical, is widely used in agricultural and industrial applications. However, traditional industrial ammonia production dominated by the Haber-Bosch process presents huge resource and environment issues due to the massive energy consumption and CO2 emission. The newly emerged nitrogen fixation technology, photocatalytic N2 reduction reaction (p-NRR), uses clean solar energy with zero-emission, holding great prospect to achieve sustainable ammonia synthesis. Although great efforts are made, the p-NRR catalysts still suffer from poor N2 adsorption and activation, inferior light absorption, and fast recombination of photocarriers. Due to the tunable electronic structure of the metal-free polymeric graphitic carbon nitride (g-C3 N4 ), the above-mentioned issues can be significantly alleviated, making it the most promising p-NRR photocatalyst. This review summarizes the recent development of g-C3 N4 -based catalysts for p-NRR, including the working principle of p-NRR catalysts, the challenges of developing p-NRR catalysts, and corresponding solutions. Particularly, the roles of defect engineering and heterojunction construction on g-C3 N4 to the enhancement of photocatalytic performances are emphasized. In addition, computational studies are introduced to deepen the understanding of reaction pathways. At last, perspectives are provided on the development of p-NRR catalysts.
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Affiliation(s)
- Lei Zhang
- The College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Shaoqi Hou
- Centre for Clean Energy Technology, Faculty of Science, University of Technology Sydney, Broadway, Sydney, NSW, 2007, Australia
| | - Tianyi Wang
- The College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Sixiao Liu
- The College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Xiaochun Gao
- School of Physics and Optoelectronic Engineering, Ludong University, Yantai, 264000, China
| | - Chengyin Wang
- The College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Guoxiu Wang
- Centre for Clean Energy Technology, Faculty of Science, University of Technology Sydney, Broadway, Sydney, NSW, 2007, Australia
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18
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Strong Tribocatalytic Nitrogen Fixation of Graphite Carbon Nitride g-C 3N 4 through Harvesting Friction Energy. NANOMATERIALS 2022; 12:nano12121981. [PMID: 35745320 PMCID: PMC9227561 DOI: 10.3390/nano12121981] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/07/2022] [Accepted: 06/08/2022] [Indexed: 02/01/2023]
Abstract
Mechanical energy derived from friction is a kind of clean energy which is ubiquitous in nature. In this research, two-dimensional graphite carbon nitride (g-C3N4) is successfully applied to the conversion of nitrogen (N2) fixation through collecting the mechanical energy generated from the friction between a g-C3N4 catalyst and a stirring rod. At the stirring speed of 1000 r/min, the tribocatalytic ammonia radical (NH4+) generation rate of g-C3N4 can achieve 100.56 μmol·L−1·g−1·h−1 using methanol as a positive charge scavenger, which is 3.91 times higher than that without any scavengers. Meanwhile, ammonia is not generated without a catalyst or contact between the g-C3N4 catalyst and the stirring rod. The tribocatalytic effect originates from the friction between the g-C3N4 catalyst and the stirring rod which results in the charges transfer crossing the contact interface, then the positive and negative charges remain on the catalyst and the stirring rod respectively, which can further react with the substance dissolved in the reaction solution to achieve the conversion of N2 to ammonia. The effects of number and stirring speed of the rods on the performance of g-C3N4 tribocatalytic N2 fixation are further investigated. This excellent and efficient tribocatalysis can provide a potential avenue towards harvesting the mechanical energy in a natural environment.
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19
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Song Q, Hu J, Zhou Y, Ye Q, Shi X, Li D, Jiang D. Carbon vacancy-mediated exciton dissociation in Ti 3C 2T x/g-C 3N 4 Schottky junctions for efficient photoreduction of CO 2. J Colloid Interface Sci 2022; 623:487-499. [PMID: 35597018 DOI: 10.1016/j.jcis.2022.05.064] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 05/09/2022] [Accepted: 05/10/2022] [Indexed: 12/18/2022]
Abstract
Earth-abundant g-C3N4 is a promising photocatalyst for CO2 reduction, but its practical application is severely limited by the excitonic effect of g-C3N4 derived from strong binding energy and lack of electron-enriched active sites. Herein, we design a novel 2D/2D Schottky junction photocatalysts comprising of Ti3C2Tx-modified defective g-C3N4 nanosheets with carbon vacancy (denoted as Ti3C2Tx/Vc-CN) by a self-assembly method. The carbon vacancies in g-C3N4 promote exciton dissociation into free charge, while the formed Schottky junctions between Ti3C2Tx and Vc-CN further enables a directional charge transfer, thus providing an electron-rich catalytic surface for the CO2 reduction. Thanks to the synergy of promoted exciton dissociation and directional electron transfer, the optimal 20% Ti3C2Tx/Vc-CN display a high CO evolution rate of 20.54 µmol·g-1·h-1 under visible light irradiation, which is 7.4 times higher than that of bare CN. This work highlights the synergy of the promoted exciton dissociation and directional electron transfer in the activity enhancement of photocatalytic CO2 reduction.
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Affiliation(s)
- Qi Song
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Jiahui Hu
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Yimeng Zhou
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Qianjin Ye
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Xiangli Shi
- Institute for Energy Research, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Di Li
- Institute for Energy Research, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Deli Jiang
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China.
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20
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Zhang W, Xing P, Zhang C, Zhang J, Hu X, Zhao L, He Y. Facile synthesis of strontium molybdate coupled g-C3N4 composite for effective tetracycline and dyes degradation under visible light. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103573] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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21
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Few-layer carbon nitride photocatalysts for solar fuels and chemicals: Current status and prospects. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)63985-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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22
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Xue Y, Wang X, Liang Z, Zhang X, Tian J. The fabrication of graphitic carbon nitride hollow nanocages with semi-metal 1T' phase molybdenum disulfide as co-catalysts for excellent photocatalytic nitrogen fixation. J Colloid Interface Sci 2022; 608:1229-1237. [PMID: 34749134 DOI: 10.1016/j.jcis.2021.10.153] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/10/2021] [Accepted: 10/25/2021] [Indexed: 12/25/2022]
Abstract
Improving the efficiency of photogenerated carrier separation is essential for photocatalytic N2 fixation. Herein, the 2D semi-metal 1T'-MoS2 was uniformly distributed in g-C3N4 nanocages (CNNCs) by a hydrothermal method, and the 1T'-MoS2/CNNC composite was obtained. 1T'-MoS2 as a co-catalyst can promote the transfer of electrons, improve the separation efficiency of photogenerated carriers, and also increase the number of effective active sites. In addition, the unique nanocage morphology of CNNCs is conducive to the scattering and reflection of incident light and improves the light absorption capacity. Therefore, the optimized 1T'-MoS2/CNNC composite (5 wt%) shows a significantly improved photocatalytic N2 fixation rate (9.8 mmol L-1 h-1 g-1) and good stability, which is significantly higher than pure CNNCs (2.9 mmol L-1 h-1 g-1), Pt/CNNC (8.2 mmol L-1 h-1 g-1) and Pt/g-C3N4 nanosheet (CNNS, 6.3 mmol L-1 h-1 g-1). This work guides guidance for the design of green and efficient N2 fixation photocatalysts.
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Affiliation(s)
- Yanjun Xue
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Xinyu Wang
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Zhangqian Liang
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Xiaoli Zhang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Jian Tian
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
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23
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Ball milling synthesis of porous g-C3N4 ultrathin nanosheets functionalized with alkynyl groups for strengthened photocatalytic activity. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120097] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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24
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Carbon defective carbon nitride with large specific surface area by hot oxygen etching for promoting photocatalytic performance. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.127732] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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25
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Lu C, Chen X. Nanostructure Engineering of Graphitic Carbon Nitride for Electrochemical Applications. ACS NANO 2021; 15:18777-18793. [PMID: 34723464 DOI: 10.1021/acsnano.1c06454] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Graphitic carbon nitride with ordered two-dimensional structure displays multiple properties, including tunable structure, suitable bandgap, high stability, and facile synthesis. Many achievements on this material have been made in photocatalysis, but the advantages have not yet been fully explored in electrochemical fields. The bulk structure with low conductivity impedes charge-transfer kinetics during electrochemical processes. Excessive nitrogen content leads to insufficient charge transfer, while bulk structures produce tortuous channels for mass transport. Some attempts have been made to address these issues by nanostructure engineering, such as ultrathin structure design, heterogeneous composition, defect engineering, and morphology control. These structure-engineered nanomaterials have been successfully applied in electrochemical fields, including ionic actuators, flexible supercapacitors, lithium-ion batteries, and electrochemical sensors. Herein, a timely review on the latest advances in graphitic carbon nitride through various engineering strategies for electrochemical applications has been summarized. A perspective on critical challenges and future research directions is highlighted for graphitic carbon nitride in electrochemistry on the basis of existing research works and our experimental experience.
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Affiliation(s)
- Chao Lu
- Department of Earth and Environmental Engineering, Columbia University, New York, New York 10027, United States
| | - Xi Chen
- Department of Earth and Environmental Engineering, Columbia University, New York, New York 10027, United States
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26
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Yu X, Ng SF, Putri LK, Tan LL, Mohamed AR, Ong WJ. Point-Defect Engineering: Leveraging Imperfections in Graphitic Carbon Nitride (g-C 3 N 4 ) Photocatalysts toward Artificial Photosynthesis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2006851. [PMID: 33909946 DOI: 10.1002/smll.202006851] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 02/10/2021] [Indexed: 06/12/2023]
Abstract
Graphitic carbon nitride (g-C3 N4 ) is a kind of ideal metal-free photocatalysts for artificial photosynthesis. At present, pristine g-C3 N4 suffers from small specific surface area, poor light absorption at longer wavelengths, low charge migration rate, and a high recombination rate of photogenerated electron-hole pairs, which significantly limit its performance. Among a myriad of modification strategies, point-defect engineering, namely tunable vacancies and dopant introduction, is capable of harnessing the superb structural, textural, optical, and electronic properties of g-C3 N4 to acquire an ameliorated photocatalytic activity. In view of the burgeoning development in this pacey field, a timely review on the state-of-the-art advancement of point-defect engineering of g-C3 N4 is of vital significance to advance the solar energy conversion. Particularly, insights into the intriguing roles of point defects, the synthesis, characterizations, and the systematic control of point defects, as well as the versatile application of defective g-C3 N4 -based nanomaterials toward photocatalytic water splitting, carbon dioxide reduction and nitrogen fixation will be presented in detail. Lastly, this review will conclude with a balanced perspective on the technical and scientific hindrances and future prospects. Overall, it is envisioned that this review will open a new frontier to uncover novel functionalities of defective g-C3 N4 -based nanostructures in energy catalysis.
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Affiliation(s)
- Xinnan Yu
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor, Darul Ehsan, 43900, Malaysia
| | - Sue-Faye Ng
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor, Darul Ehsan, 43900, Malaysia
- Center of Excellence for NaNo Energy & Catalysis Technology (CONNECT), Xiamen University Malaysia, Selangor, Darul Ehsan, 43900, Malaysia
| | - Lutfi Kurnianditia Putri
- Low Carbon Economy (LCE) Research Group, School of Chemical Engineering, Universiti Sains Malaysia, Nibong Tebal, Pulau, Pinang, 14300, Malaysia
| | - Lling-Lling Tan
- Multidisciplinary Platform of Advanced Engineering, Chemical Engineering Discipline, School of Engineering, Monash University, Selangor, Darul Ehsan, 47500, Malaysia
| | - Abdul Rahman Mohamed
- Low Carbon Economy (LCE) Research Group, School of Chemical Engineering, Universiti Sains Malaysia, Nibong Tebal, Pulau, Pinang, 14300, Malaysia
| | - Wee-Jun Ong
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor, Darul Ehsan, 43900, Malaysia
- Center of Excellence for NaNo Energy & Catalysis Technology (CONNECT), Xiamen University Malaysia, Selangor, Darul Ehsan, 43900, Malaysia
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
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27
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Bao L, Bao Q, Zhang H, Yuan Y. Feasible Tuning of Surface OVs on (001) TiO 2 for Superior Photocatalytic Nitrogen Fixation Activity. Chemphyschem 2021; 22:2168-2171. [PMID: 34406686 DOI: 10.1002/cphc.202100418] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/29/2021] [Indexed: 12/22/2022]
Abstract
A feasible tuning method for oxygen vacancies was realized by annealing under 3 atm H2 with (001)-exposed TiO2 nanosheets. The colored TiO2 sample exhibits an excellent N2 photo-fixation rate owing to the abundant oxygen vacancies (OVs) thus demonstrating that annealing with high pressure H2 is exceedingly efficient for tuning surface OVs.
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Affiliation(s)
- Liang Bao
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hang Zhou, 310018, China
| | - Qinyu Bao
- College of Information Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Huaiwei Zhang
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hang Zhou, 310018, China
| | - Yongjun Yuan
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hang Zhou, 310018, China
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28
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Jiang L, Yang J, Yuan X, Guo J, Liang J, Tang W, Chen Y, Li X, Wang H, Chu W. Defect engineering in polymeric carbon nitride photocatalyst: Synthesis, properties and characterizations. Adv Colloid Interface Sci 2021; 296:102523. [PMID: 34534750 DOI: 10.1016/j.cis.2021.102523] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/31/2021] [Accepted: 09/07/2021] [Indexed: 12/24/2022]
Abstract
Polymer carbon nitride (CN) has unique structure and electronic properties, making it attractive in photocatalysis fields. However, the photocatalytic efficiency of the pristine CN photocatalyst is still unsatisfactory. In this regard, the introduction of vacancy defects can effectively tune photoelectric properties of CN photocatalyst through tailoring the electronic structure and bandgap engineering. In this review, the effect of vacancy defects on CN is reviewed from the aspects of light absorption, charge separation and surface photoreactivity of CN. Meanwhile, the current progress in the design of vacancy defects with the classified carbon vacancies (CVs), nitrogen vacancies (NVs), amino and cyano groups on CN to boost the photocatalytic performance is summarized. Furthermore, various characterization methods have been summarized and highlighted, including microscopic characterization (SEM, TEM, AFM, HAADF-STEM), spectroscopic characterization (XRD, FTIR, XAFS, XANES, EPR, PAS, XPS, raman spectroscopy, solid-state NMR spectroscopy), elemental analysis, and computational characterization. Finally, the future opportunities and challenges of CN photocatalysts designed with vacancies and defects are proposed to highlight the development direction of this research field.
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Affiliation(s)
- Longbo Jiang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China; Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
| | - Jinjuan Yang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Xingzhong Yuan
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Jiayin Guo
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Jie Liang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Wangwang Tang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Yaoning Chen
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Xiaodong Li
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Hou Wang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Wei Chu
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
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29
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Jindal H, Kumar D, Sillanpaa M, Nemiwal M. Current progress in polymeric graphitic carbon nitride-based photocatalysts for dye degradation. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108786] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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30
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One-step in-situ synthesis of Bi-decorated BiOBr microspheres with abundant oxygen vacancies for enhanced photocatalytic nitrogen fixation properties. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126744] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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31
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Photocatalytic Fixation of Molecular Nitrogen in Systems Based on Graphite-Like Carbon Nitride: a Review. THEOR EXP CHEM+ 2021. [DOI: 10.1007/s11237-021-09678-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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32
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Ziegenbalg D, Zander J, Marschall R. Photocatalytic Nitrogen Reduction: Challenging Materials with Reaction Engineering. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100084] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Dirk Ziegenbalg
- Institute of Chemical Engineering Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Judith Zander
- Department of Chemistry University of Bayreuth Universitätsstrasse 30 95447 Bayreuth Germany
| | - Roland Marschall
- Department of Chemistry University of Bayreuth Universitätsstrasse 30 95447 Bayreuth Germany
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33
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Gao W, Li X, Zhang X, Su S, Luo S, Huang R, Jing Y, Luo M. Photocatalytic nitrogen fixation of metal-organic frameworks (MOFs) excited by ultraviolet light: insights into the nitrogen fixation mechanism of missing metal cluster or linker defects. NANOSCALE 2021; 13:7801-7809. [PMID: 33876150 DOI: 10.1039/d1nr00697e] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The vacancies of semiconductors have proven to be effective active sites for photocatalytic nitrogen fixation, but what about the role of defects in MOF materials? Herein, we report the first UiO-66 with photo-excited cluster defects and linker defects for photocatalytic nitrogen fixation. It was determined through the post-synthetic ligand exchange (PSE) process that the linker defects, rather than cluster defects, can greatly improve the performance, which is due to linker defects forming unsaturated metal nodes such as the vacancy in a semiconductor. Specifically, for photo-activated UiO-66, the NH4+ production rate was 196 and 68 μmol g-1 h-1 in air atmosphere under ultraviolet-visible (UV-Vis) and visible light, respectively. This report provides a new effective strategy to design efficient nitrogen fixation photocatalysts.
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Affiliation(s)
- Wanguo Gao
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P.R. China.
| | - Xiaoman Li
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P.R. China.
| | - Xu Zhang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P.R. China.
| | - Senda Su
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P.R. China.
| | - Shijian Luo
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P.R. China.
| | - Rong Huang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P.R. China.
| | - Yuan Jing
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P.R. China.
| | - Min Luo
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P.R. China.
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Li X, Li J, Zhai H, Song M, Wang L, Guan R, Zhang Q, Zhao Z. Efficient Catalytic Fixation Nitrogen Activity Under Visible Light by Molybdenum Doped Mesoporous TiO2. Catal Letters 2021. [DOI: 10.1007/s10562-021-03625-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Huang R, Li X, Gao W, Zhang X, Liang S, Luo M. Recent advances in photocatalytic nitrogen fixation: from active sites to ammonia quantification methods. RSC Adv 2021; 11:14844-14861. [PMID: 35423978 PMCID: PMC8697998 DOI: 10.1039/d0ra10439f] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 03/31/2021] [Indexed: 12/16/2022] Open
Abstract
Photocatalytic nitrogen fixation has become a hot topic in recent years due to its mild and sustainable advantages. While modifying the photocatalyst to enhance its electron separation, light absorption and nitrogen reduction abilities, the role of the active sites in the catalytic reaction cannot be ignored because the N[triple bond, length as m-dash]N nitrogen bond is too strong to activate. This review summarizes the recent research on nitrogen fixation, focusing on the active sites for N2 on the catalyst surface, classifying common active sites, explaining the main role and additional role of the active sites in catalytic reactions, and discussing the methods to increase the number of active sites and their activation ability. Finally, the outlook for future research is presented. It is hoped this review could help researchers understand more about the activation of the nitrogen molecules and lead more efforts into research on nitrogen fixation photocatalysts.
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Affiliation(s)
- Rong Huang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University Yinchuan Ningxia 750021 China
- Ningxia Key Laboratory for Photovoltaic Materials, Ningxia University Yinchuan Ningxia 750021 China
| | - Xiaoman Li
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University Yinchuan Ningxia 750021 China
| | - Wanguo Gao
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University Yinchuan Ningxia 750021 China
| | - Xu Zhang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University Yinchuan Ningxia 750021 China
| | - Sen Liang
- Ningxia Key Laboratory for Photovoltaic Materials, Ningxia University Yinchuan Ningxia 750021 China
| | - Min Luo
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University Yinchuan Ningxia 750021 China
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Li P, Gao S, Liu Q, Ding P, Wu Y, Wang C, Yu S, Liu W, Wang Q, Chen S. Recent Progress of the Design and Engineering of Bismuth Oxyhalides for Photocatalytic Nitrogen Fixation. ADVANCED ENERGY AND SUSTAINABILITY RESEARCH 2021. [DOI: 10.1002/aesr.202000097] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Peishen Li
- Laboratory for Micro-sized Functional Materials College of Elementary Education Department of Chemistry Capital Normal University Beijing 100048 China
- Beijing Innovation Center for Engineering Science and Advanced Technology (BIC-ESAT) Key Laboratory of Water and Sediment Sciences (Ministry of Education) College of Environmental Sciences and Engineering Peking University Beijing 100871 China
| | - Shuai Gao
- Laboratory for Micro-sized Functional Materials College of Elementary Education Department of Chemistry Capital Normal University Beijing 100048 China
| | - Qiming Liu
- Department of Chemistry and Biochemistry University of California 1156 High Street Santa Cruz CA 95064 USA
| | - Peiren Ding
- Laboratory for Micro-sized Functional Materials College of Elementary Education Department of Chemistry Capital Normal University Beijing 100048 China
| | - Yunyun Wu
- Laboratory for Micro-sized Functional Materials College of Elementary Education Department of Chemistry Capital Normal University Beijing 100048 China
| | - Changzheng Wang
- Beijing Key Laboratory of Functional Materials for Building Structure and Environmental Remediation Beijing University of Civil Engineering and Architecture Beijing 100044 China
| | - Shaobin Yu
- Beijing Key Laboratory of Functional Materials for Building Structure and Environmental Remediation Beijing University of Civil Engineering and Architecture Beijing 100044 China
| | - Wen Liu
- Beijing Innovation Center for Engineering Science and Advanced Technology (BIC-ESAT) Key Laboratory of Water and Sediment Sciences (Ministry of Education) College of Environmental Sciences and Engineering Peking University Beijing 100871 China
| | - Qiang Wang
- Laboratory for Micro-sized Functional Materials College of Elementary Education Department of Chemistry Capital Normal University Beijing 100048 China
| | - Shaowei Chen
- Department of Chemistry and Biochemistry University of California 1156 High Street Santa Cruz CA 95064 USA
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Meng A, Teng Z, Zhang Q, Su C. Intrinsic Defects in Polymeric Carbon Nitride for Photocatalysis Applications. Chem Asian J 2020; 15:3405-3415. [PMID: 32902148 DOI: 10.1002/asia.202000850] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/03/2020] [Indexed: 11/07/2022]
Abstract
Introducing intrinsic defects in polymeric carbon nitride (PCN) without the addition of exotic atoms have been verified as an available strategy to boost the photocatalytic performance. This minireview focuses on the fundamental classifications and positive roles of intrinsic defects in PCN for photocatalysis applications. The intrinsic defects in PCN are classified into several types, such as nitrogen vacancy, carbon vacancy and derivative functional groups such as cyano, amino and cyanamide groups. The critical roles of these defects on the electronic configuration, charge transfer and surface properties of PCN are also carefully classified and elaborated. Furthermore, the photocatalysis applications of the defective PCN including photocatalytic water splitting, N2 fixation, H2 O2 production, CO2 reduction and NO removal are summarized. In the end, the challenges and opportunities of defect chemistry in PCN for photocatalysis field are presented.
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Affiliation(s)
- Aiyun Meng
- International Collaboration Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Zhenyuan Teng
- Department of Applied Chemistry, Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu, 804-8550, Japan
| | - Qitao Zhang
- International Collaboration Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Chenliang Su
- International Collaboration Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China
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Zeng Q, Wang X, Jin M, Akinoglu EM, Zhou G, Shui L. Nitrogen defects-rich porous graphitic carbon nitride for efficient photocatalytic hydrogen evolution. J Colloid Interface Sci 2020; 578:788-795. [DOI: 10.1016/j.jcis.2020.06.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 06/01/2020] [Accepted: 06/06/2020] [Indexed: 02/07/2023]
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Doping of Graphitic Carbon Nitride with Non-Metal Elements and Its Applications in Photocatalysis. Catalysts 2020. [DOI: 10.3390/catal10101119] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
This review outlines the latest research into the design of graphitic carbon nitride (g-C3N4) with non-metal elements. The emphasis is put on modulation of composition and morphology of g-C3N4 doped with oxygen, sulfur, phosphor, nitrogen, carbon as well as nitrogen and carbon vacancies. Typically, the various methods of non-metal elements introducing in g-C3N4 have been explored to simultaneously tune the textural and electronic properties of g-C3N4 for improving its response to the entire visible light range, facilitating a charge separation, and prolonging a charge carrier lifetime. The application fields of such doped graphitic carbon nitride are summarized into three categories: CO2 reduction, H2-evolution, and organic contaminants degradation. This review shows some main directions and affords to design the g-C3N4 doping with non-metal elements for real photocatalytic applications.
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Li Y, Li X, Zhang H, Xiang Q. Porous graphitic carbon nitride for solar photocatalytic applications. NANOSCALE HORIZONS 2020; 5:765-786. [PMID: 32091529 DOI: 10.1039/d0nh00046a] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Photocatalysis is attracting increased attention in solving the energy crisis and environmental pollution. Graphitic carbon nitride (g-C3N4), a non-metal photocatalyst, has been regarded as an ideal photocatalyst to solve these problems because of its chemical stability and unique optical properties. However, traditional g-C3N4 exhibits moderate photocatalytic activity due to its low specific surface area and fast recombination rate of photogenerated electrons. Among the many modified g-C3N4 materials, porous carbon nitride (PCN) can solve the shortcomings of traditional g-C3N4 because of PCN's increased number of surface-active sites, specific surface area, light harvesting, diffusion and adsorption/activation. However, a frontier, comprehensive summary of the development of PCN is less reported. Thus, a review on recent developments in PCN research is urgently needed to further promote its advancement. In this review, the synthesis methods, structures and properties and photocatalytic applications of PCN photocatalysts are described in detail. The current challenges and future development of PCN/PCN-based photocatalysts are discussed. This review may present an up-to-date view of the PCN development to provide an in-depth understanding of PCN-based photocatalysts.
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Affiliation(s)
- Yang Li
- 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. and College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, P. R. China
| | - Xin Li
- College of Forestry and Landscape Architecture, Key Laboratory of Energy Plant Resources and Utilization, Ministry of Agriculture, Key Laboratory of Biomass Energy of Guangdong Regular Higher Education Institutions, South China Agricultural University, Guangzhou 510642, Guangdong, China
| | - Huaiwu Zhang
- 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
- 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. and School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450002, P. R. China
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Construction of three-dimensional mesoporous carbon nitride with high surface area for efficient visible-light-driven hydrogen evolution. J Colloid Interface Sci 2020; 561:601-608. [DOI: 10.1016/j.jcis.2019.11.035] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 11/06/2019] [Accepted: 11/11/2019] [Indexed: 12/29/2022]
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42
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Anchoring single-unit-cell defect-rich bismuth molybdate layers on ultrathin carbon nitride nanosheet with boosted charge transfer for efficient photocatalytic ciprofloxacin degradation. J Colloid Interface Sci 2020; 560:701-713. [DOI: 10.1016/j.jcis.2019.10.116] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 10/23/2019] [Accepted: 10/31/2019] [Indexed: 12/23/2022]
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Ultrathin graphitic carbon nitride modified PbBiO2Cl microspheres with accelerating interfacial charge transfer for the photodegradation of organic contaminants. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123804] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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