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Zhang Y, Shi H, Zhao S, Chen Z, Zheng Y, Tu G, Zhong S, Zhao Y, Bai S. Hollow Plasmonic P-Metal-N S-Scheme Heterojunction Photoreactor with Spatially Separated Dual Cocatalysts toward Artificial Photosynthesis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2304050. [PMID: 37712104 DOI: 10.1002/smll.202304050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 08/21/2023] [Indexed: 09/16/2023]
Abstract
Semiconductor-based step-scheme (S-scheme) heterojunctions possess many merits toward mimicking natural photosynthesis. However, their applications for solar-to-chemical energy conversion are hindered by inefficient charge utilization and unsatisfactory surface reactivity. Herein, two synergistic protocols are demonstrated to overcome these limitations based on the construction of a hollow plasmonic p-metal-n S-scheme heterojunction photoreactor with spatially separated dual noble-metal-free cocatalysts. On one side, plasmonic Au, inserted into the heterointerfaces of CuS@ZnIn2 S4 core-shell nanoboxes, not only accelerates the transfer and recombination of useless charges, enabling a more thorough separation of useful ones for CO2 reduction and H2 O oxidation but also generates hot electrons and holes, respectively injects them into ZnIn2 S4 and CuS, further increasing the number of active carriers participating in redox reactions. On the other side, Fe(OH)x and Ti3 C2 cocatalysts, separately located on the CuS and ZnIn2 S4 surface, enrich the redox sites, adjust the reduction potential and pathway for selective CO2 -to-CH4 transformation, and balance the transfer and consumption of photocarriers. As expected, significantly enhanced activity and selectivity in CH4 production are achieved by the smart design along with nearly stoichiometric ratios of reduction and oxidation products. This study paves the way for optimizing artificial photosynthetic systems via rational interfacial channel introduction and surface cocatalyst modification.
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Affiliation(s)
- Yan Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Hulin Shi
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Shuyi Zhao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Zhulei Chen
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Yiyi Zheng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Gaomei Tu
- Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Shuxian Zhong
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Yuling Zhao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Song Bai
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
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2
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Dagar P, Ghorai N, Bungla M, Ghosh HN, Ganguli AK. Understanding the charge transfer dynamics of the Cu 2WS 4-CNT-FeOOH ternary composite for photo-electrochemical studies. Phys Chem Chem Phys 2023; 25:30867-30879. [PMID: 37937581 DOI: 10.1039/d3cp03498d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
Ternary transition metal chalcogenide (Cu2WS4) is a semiconductor with a band gap of 2.1 eV and could be a promising candidate for photoelectrochemical water splitting and solar energy conversion applications. Despite numerous reports on ternary transition metal chalcogenides, this semiconductor's ultrafast charge transfer dynamics remain unknown. Here, we report on charge carrier dynamics in a pristine Cu2WS4 system with the aid of ultrafast transient (TA) pump-probe spectroscopy and a hot carrier transfer process from Cu2WS4 to multi-walled carbon nanotubes (CNTs) and FeOOH has been observed. Furthermore, we have explored Cu2WS4-FeOOH having a type-II composite for photo-electrochemical (PEC) water oxidation and modified this with the addition of multi-walled carbon nanotubes to expedite the charge-transfer processes and photo-anodic performance. The photo-electrochemical studies demonstrate that the Cu2WS4-CNT, Cu2WS4-FeOOH, and Cu2WS4-CNT-FeOOH provide nearly 3-, 8- and 12-fold enhancement in photocurrent density relative to the bare Cu2WS4 photo-anode at 1.23 V vs. RHE. These photo-electrochemical studies support the results obtained from the TA investigation and further prove the higher charge separation in the ternary composite system. These studies probe the excited states and provide evidence of longer charge separation in the binary and ternary composites, responsible for their remarkable photo-electrochemical performance.
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Affiliation(s)
- Preeti Dagar
- Institute of Nano Science and Technology, Sector-81, Knowledge City, SAS Nagar, Punjab-140306, India
| | - Nandan Ghorai
- Institute of Nano Science and Technology, Sector-81, Knowledge City, SAS Nagar, Punjab-140306, India
| | - Manisha Bungla
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Hirendra N Ghosh
- Institute of Nano Science and Technology, Sector-81, Knowledge City, SAS Nagar, Punjab-140306, India
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
- Department of Chemical Sciences, National Institute of Science Education and Research Bhubaneswar, Jatni, Khurda 752050, Odisha, India
| | - Ashok K Ganguli
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi-110016, India
- Department of Chemical Sciences, Indian Institute of Science Education & Research, Berhampur, Laudigam, Odisha 760003, India
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3
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Tan XQ, Mo W, Lin X, Loh JY, Mohamed AR, Ong WJ. Retrospective insights into recent MXene-based catalysts for CO 2 electro/photoreduction: how far have we gone? NANOSCALE 2023; 15:6536-6562. [PMID: 36942445 DOI: 10.1039/d2nr05718b] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The electro/photocatalytic CO2 reduction reaction (CO2RR) is a long-term avenue toward synthesizing renewable fuels and value-added chemicals, as well as addressing the global energy crisis and environmental challenges. As a result, current research studies have focused on investigating new materials and implementing numerous fabrication approaches to increase the catalytic performances of electro/photocatalysts toward the CO2RR. MXenes, also known as 2D transition metal carbides, nitrides, and carbonitrides, are intriguing materials with outstanding traits. Since their discovery in 2011, there has been a flurry of interest in MXenes in electrocatalysis and photocatalysis, owing to their several benefits, including high mechanical strength, tunable structure, surface functionality, high specific surface area, and remarkable electrical conductivity. Herein, this review serves as a milestone for the most recent development of MXene-based catalysts for the electrocatalytic and photocatalytic CO2RR. The overall structure of MXenes is described, followed by a summary of several synthesis pathways classified as top-down and bottom-up approaches, including HF-etching, in situ HF-formation, electrochemical etching, and halogen etching. Additionally, the state-of-the-art development in the field of both the electrocatalytic and photocatalytic CO2RR is systematically reviewed. Surface termination modulation and heterostructure engineering of MXene-based electro/photocatalysts, and insights into the reaction mechanism for the comprehension of the structure-performance relationship from the CO2RR via density functional theory (DFT) have been underlined toward activity enhancement. Finally, imperative issues together with future perspectives associated with MXene-based electro/photocatalysts are proposed.
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Affiliation(s)
- Xin-Quan Tan
- 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
| | - Wuwei Mo
- 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
| | - Xinlong Lin
- 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
| | - Jian Yiing Loh
- 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
| | - Abdul Rahman Mohamed
- Low Carbon Economy (LCE) Research Group, School of Chemical Engineering, Universiti Sains Malaysia, Nibong Tebal, 14300 Pulau Pinang, 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
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- Gulei Innovation Institute, Xiamen University, Zhangzhou 363216, China
- Shenzhen Research Institute of Xiamen University, Shenzhen 518057, China
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4
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Singh R, Yadav V, Siddhanta S. Probing plasmon-induced surface reactions using two-dimensional correlation vibrational spectroscopy. Phys Chem Chem Phys 2023; 25:6032-6043. [PMID: 36779479 DOI: 10.1039/d2cp05705k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Surface plasmon resonance (SPR) has the ability to drive catalytic conversion of the reactant molecules via the production of hot electrons, which in general requires high activation energy. The reactions driven by these hot electrons are critical and essential in various heterogeneous surface catalytic reactions. However, there is a need to understand the dynamics of surface reactions and the underlying mechanism, which are influenced by several factors such as the constitution of the nanoparticle, exposure time, and reaction conditions to name a few. However, the effect of solvent in stabilizing the electron-hole pair, the orientation, and the surface coverage of the analyte are poorly understood due to the limitations of current methods. To get deeper insights into the reaction dynamics, we have demonstrated the combined utility of plasmon-enhanced Raman spectroscopy and Two-dimensional correlation spectroscopy (2DCOS) to study the plasmon-driven conversion of 4-nitrothiophenol on the surface of plasmonic nanoparticles. Interestingly, this combined technique provided us with previously unobservable results regarding surface catalysis by conventional spectroscopic analysis alone. Specifically, for the first time, 2DCOS provided critical insights in bridging the gap in our understanding of the interplay of solvent effect, orientation, and surface packing of the analyte molecules. It was observed that certain species like 4,4-dimercaptoazobenzene (DMAB) or 4-aminothiophenol (4-ATP) can be selectively formed based on the ordered or disordered phases of the analytes on the surface, thus paving the way to precisely control light-driven reactions through operando spectroscopy.
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Affiliation(s)
- Ruchi Singh
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Vikas Yadav
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Soumik Siddhanta
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
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5
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Wang F, Ma H, Ren F, Zhou Z, Zhang Z, Xu W, Min S. In situ self-exsolved ultrasmall Fe 2P quantum dots from attapulgite nanofibers as superior cocatalysts for solar hydrogen evolution. NANOSCALE 2023; 15:3366-3374. [PMID: 36722766 DOI: 10.1039/d2nr06607f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Developing highly active, stable, and cost-efficient cocatalysts for photocatalytic H2 evolution is pivotal in the area of renewable energy conversion. Herein, we present a straightforward, low-temperature phosphidation strategy for in situ exsolving doped Fe ions from natural attapulgite (ATP) nanofibers into a supported Fe2P cocatalyst for the photocatalytic H2 evolution reaction (HER). The resulting Fe2P QDs/ATP features highly dispersed Fe2P QDs with an average size of <2 nm and a strong interfacial interaction between self-exsolved Fe2P QDs and the ATP substrate, thus providing ample and stable active sites for the photocatalytic HER. When employed as a cocatalyst, Fe2P QDs/ATP exhibits superior catalytic activity and notable stability in a molecular system with low-cost xanthene dyes as the photosensitizer under visible light irradiation. More importantly, Fe2P QDs/ATP can also efficiently and stably catalyze the photocatalytic HER when simply combined with various semiconductor photocatalysts (g-C3N4, TiO2, and CdS). This strategy of exsolving transition metal ions from substrates is an effective yet simple approach for the development of highly active supported HER cocatalysts for renewable and clean energy conversion.
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Affiliation(s)
- Fang Wang
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, P. R. China.
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, 750021, P. R. China.
| | - Haihong Ma
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, P. R. China.
| | - Fengmei Ren
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, P. R. China.
| | - Zhengfa Zhou
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, P. R. China.
| | - Zhengguo Zhang
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, 750021, P. R. China.
| | - Weibing Xu
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, P. R. China.
| | - Shixiong Min
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, 750021, P. R. China.
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6
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Guo W, Luo H, Jiang Z, Fang D, Chi J, Shangguan W, Wang Z, Wang L, Lee AF. Ge-Doped Cobalt Oxide for Electrocatalytic and Photocatalytic Water Splitting. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Weiqi Guo
- Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Haolin Luo
- Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhi Jiang
- Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Dongxu Fang
- Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jiasheng Chi
- Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Wenfeng Shangguan
- Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhiliang Wang
- Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St Lucia, Queensland 4072, Australia
| | - Lianzhou Wang
- Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St Lucia, Queensland 4072, Australia
| | - Adam F. Lee
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), RMIT University, Melbourne, Victoria 3000, Australia
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7
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Zawadzki P. Visible Light-Driven Advanced Oxidation Processes to Remove Emerging Contaminants from Water and Wastewater: a Review. WATER, AIR, AND SOIL POLLUTION 2022; 233:374. [PMID: 36090740 PMCID: PMC9440748 DOI: 10.1007/s11270-022-05831-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 08/15/2022] [Indexed: 06/15/2023]
Abstract
The scientific data review shows that advanced oxidation processes based on the hydroxyl or sulfate radicals are of great interest among the currently conventional water and wastewater treatment methods. Different advanced treatment processes such as photocatalysis, Fenton's reagent, ozonation, and persulfate-based processes were investigated to degrade contaminants of emerging concern (CECs) such as pesticides, personal care products, pharmaceuticals, disinfectants, dyes, and estrogenic substances. This article presents a general overview of visible light-driven advanced oxidation processes for the removal of chlorfenvinphos (organophosphorus insecticide), methylene blue (azo dye), and diclofenac (non-steroidal anti-inflammatory drug). The following visible light-driven treatment methods were reviewed: photocatalysis, sulfate radical oxidation, and photoelectrocatalysis. Visible light, among other sources of energy, is a renewable energy source and an excellent substitute for ultraviolet radiation used in advanced oxidation processes. It creates a high application potential for solar-assisted advanced oxidation processes in water and wastewater technology. Despite numerous publications of advanced oxidation processes (AOPs), more extensive research is needed to investigate the mechanisms of contaminant degradation in the presence of visible light. Therefore, this paper provides an important source of information on the degradation mechanism of emerging contaminants. An important aspect in the work is the analysis of process parameters affecting the degradation process. The initial concentration of CECs, pH, reaction time, and catalyst dosage are discussed and analyzed. Based on a comprehensive survey of previous studies, opportunities for applications of AOPs are presented, highlighting the need for further efforts to address dominant barriers to knowledge acquisition.
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Affiliation(s)
- Piotr Zawadzki
- Department of Water Protection, Central Mining Institute, Plac Gwarków 1, 40-166 Katowice, Poland
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8
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Negrín-Montecelo Y, Kong XT, Besteiro LV, Carbó-Argibay E, Wang ZM, Pérez-Lorenzo M, Govorov AO, Comesaña-Hermo M, Correa-Duarte MA. Synergistic Combination of Charge Carriers and Energy-Transfer Processes in Plasmonic Photocatalysis. ACS APPLIED MATERIALS & INTERFACES 2022; 14:35734-35744. [PMID: 35913208 DOI: 10.1021/acsami.2c08685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Important efforts are currently under way in order to develop further the nascent field of plasmonic photocatalysis, striving for improved efficiencies and selectivities. A significant fraction of such efforts has been focused on distinguishing, understanding, and enhancing specific energy-transfer mechanisms from plasmonic nanostructures to their environment. Herein, we report a synthetic strategy that combines two of the main physical mechanisms driving plasmonic photocatalysis into an engineered system by rationally combining the photochemical features of energetic charge carriers and the electromagnetic field enhancement inherent to the plasmonic excitation. We do so by creating hybrid photocatalysts that integrate multiple plasmonic resonators in a single entity, controlling their joint contribution through spectral separation and differential surface functionalization. This strategy allows us to create complex hybrids with improved photosensitization capabilities, thanks to the synergistic combination of two photosensitization mechanisms. Our results show that the hot electron injection can be combined with an energy-transfer process mediated by the near-field interaction, leading to a significant increase in the final photocatalytic response of the material and moving the field of plasmonic photocatalysis closer to energy-efficient applications. Furthermore, our multimodal hybrids offer a test system to probe the properties of the two targeted mechanisms in energy-related applications such as the photocatalytic generation of hydrogen and open the door to wavelength-selective photocatalysis and novel tandem reactions.
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Affiliation(s)
- Yoel Negrín-Montecelo
- CINBIO, Universidade de Vigo, 36310 Vigo, Spain
- Galicia Sur Health Research Institute (IISGS), CIBERSAM, 36310 Vigo, Spain
| | - Xiang-Tian Kong
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, United States
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, 610054 Chengdu, China
| | - Lucas V Besteiro
- CINBIO, Universidade de Vigo, 36310 Vigo, Spain
- Galicia Sur Health Research Institute (IISGS), CIBERSAM, 36310 Vigo, Spain
| | - Enrique Carbó-Argibay
- International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal
| | - Zhiming M Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, 610054 Chengdu, China
| | - Moisés Pérez-Lorenzo
- CINBIO, Universidade de Vigo, 36310 Vigo, Spain
- Galicia Sur Health Research Institute (IISGS), CIBERSAM, 36310 Vigo, Spain
| | - Alexander O Govorov
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, United States
| | | | - Miguel A Correa-Duarte
- CINBIO, Universidade de Vigo, 36310 Vigo, Spain
- Galicia Sur Health Research Institute (IISGS), CIBERSAM, 36310 Vigo, Spain
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9
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Makani NH, Singh M, Paul T, Sahoo A, Nama J, Sharma S, Banerjee R. Photoelectrocatalytic CO2 Reduction Using Stable Lead-Free Bimetallic CsAgBr2 Halide Perovskite Nanocrystals. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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10
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Ge F, Li X, Wu M, Ding H, Li X. A type II heterojunction α-Fe 2O 3/g-C 3N 4 for the heterogeneous photo-Fenton degradation of phenol. RSC Adv 2022; 12:8300-8309. [PMID: 35424783 PMCID: PMC8984958 DOI: 10.1039/d1ra09282k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 02/18/2022] [Indexed: 12/30/2022] Open
Abstract
The heterogeneous photo-Fenton reaction is an effective method of chemical oxidation to remove phenol in wastewater with environmental friendliness and sustainability. Herein, the composite α-Fe2O3/g-C3N4, as a catalyst of the heterogeneous photo-Fenton reaction, has been synthesized by hydrothermal-calcination method using the abundant and low-cost FeCl3·6H2O and g-C3N4 as raw materials. The influence of the annealing temperature during calcination was also investigated. The UV-Vis diffuse reflectance spectra of samples show that the composite α-Fe2O3/g-C3N4 possesses the widest light response range. Furthermore, the transient photocurrent response curves demonstrated the strongest intensity of α-Fe2O3/g-C3N4. The annealed α-Fe2O3/g-C3N4 is indicative of the highest degradation efficiency in all samples due to the improvement of the charge transfer ability caused by the tight heterojunction structure. The results of the scavenger trapping experiments show that the hydroxyl radical was the main active species in degradation. Based on experimental results, a type II heterojunction should be built in the composite α-Fe2O3/g-C3N4, driving the photoelectrons transfer and migration by internal electronic field. This work provides a facile and new method to synthesize α-Fe2O3/g-C3N4 as an effective heterogeneous photo-Fenton catalyst for environmental remediation. Composite α-Fe2O3/g-C3N4 with type II heterojunction to degrade phenol by heterogeneous photo-Fenton reaction.![]()
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Affiliation(s)
- Fuxiang Ge
- National Engineering Research Center of Coal Preparation and Purification, China University of Mining and Technology Xuzhou 221000 Jiangsu China .,Kaifeng Ecological and Environmental Monitoring Center Henan Province China
| | - Xuehua Li
- National Engineering Research Center of Coal Preparation and Purification, China University of Mining and Technology Xuzhou 221000 Jiangsu China
| | - Mian Wu
- School of Chemical Engineering &Technology, China University of Mining and Technology Xuzhou Jiangsu China
| | - Hui Ding
- School of Chemical Engineering &Technology, China University of Mining and Technology Xuzhou Jiangsu China
| | - Xiaobing Li
- National Engineering Research Center of Coal Preparation and Purification, China University of Mining and Technology Xuzhou 221000 Jiangsu China
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11
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Wo Z, Ma H, Shi C, Su Y, Zhang X. One‐Pot Synthesis of Ag‐TiO
2
‐rGO Nanocomposites for Visible‐Light Photodegradation. ChemistrySelect 2022. [DOI: 10.1002/slct.202200184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zihao Wo
- State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China
| | - Hua Ma
- State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China
| | - Chaofan Shi
- State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China
| | - Yier Su
- State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China
| | - Xiwen Zhang
- State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China
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12
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Zou L, Sa R, Zhong H, Lv H, Wang X, Wang R. Photoelectron Transfer Mediated by the Interfacial Electron Effects for Boosting Visible-Light-Driven CO 2 Reduction. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05449] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Lei Zou
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, China
| | - Rongjian Sa
- Institute of Oceanography, Ocean College, Minjiang University, Fuzhou 350108, Fujian, China
| | - Hong Zhong
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, China
| | - Haowei Lv
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, China
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Xinchen Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350108, Fujian, China
| | - Ruihu Wang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, China
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
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13
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Mavuso MA, Makgwane PR, Sinha Ray S. Construction of heterojunctions CeO2 interfaced Nb, Sn, Ti, Mo and Zn metal oxide catalysts for photocatalytic oxidation of α-pinene inert C-H. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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14
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Liu Q, Wang S, Mo W, Zheng Y, Xu Y, Yang G, Zhong S, Ma J, Liu D, Bai S. Emerging Stacked Photocatalyst Design Enables Spatially Separated Ni(OH) 2 Redox Cocatalysts for Overall CO 2 Reduction and H 2 O Oxidation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2104681. [PMID: 34914177 DOI: 10.1002/smll.202104681] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 10/25/2021] [Indexed: 06/14/2023]
Abstract
Construction of photocatalytic systems with spatially separated dual cocatalysts is considered as a promising route to modulate charge separation/transfer, promote surface redox reactivities, and prevent unwanted reverse reactions. However, past efforts on the loading of spatially separated double-cocatalysts are limited to hollow structured semiconductors with inner/outer surface and monocrystalline semiconductors with different exposed facets. To overcome this limitation, herein, enabled by a unique stacked photocatalyst design, a facile and versatile strategy for spatial separation of redox cocatalysts on various semiconductors without structural and morphological restriction is demonstrated. The smart design begins with the deposition of light-harvesting semiconductors on reduced graphene oxide (rGO) nanosheets, followed with the coverage of Ni(OH)2 outer layer. The ternary photocatalysts exhibit superior activities and stabilities of H2 O oxidation and selective CO2 -to-CO reduction, remarkably surpassing other counterparts. The origin of the enhanced performance is attributed to the synergistic interplay of rGO@Ni(OH)2 reduction cocatalysts surrounding the semiconductors and Ni(OH)2 oxidation cocatalysts directly supported by the semiconductors, which mitigates the charge recombination, supplies highly active and selective sites for overall reactions, and preserves the semiconductors from photocorrosion. This work presents a new approach to regulating the position of dual cocatalysts and ameliorating the net efficiency of photoredox catalysis.
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Affiliation(s)
- Qian Liu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Shihong Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Weihao Mo
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Yiyi Zheng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Yanbo Xu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Guodong Yang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Shuxian Zhong
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Jun Ma
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu, 215123, P. R. China
| | - Dong Liu
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu, 215123, P. R. China
| | - Song Bai
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
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15
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Zhou Y, Abazari R, Chen J, Tahir M, Kumar A, Ikreedeegh RR, Rani E, Singh H, Kirillov AM. Bimetallic metal–organic frameworks and MOF-derived composites: Recent progress on electro- and photoelectrocatalytic applications. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214264] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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16
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Zhao H, Duan J, Zhang Z, Wang W. S‐Scheme Heterojunction and Defect Site Engineering on Cu
x
In
5
S
8
−Cu
2‐y
Se for Highly Efficient Photoreduction of CO
2
to methanol. ChemCatChem 2021. [DOI: 10.1002/cctc.202101733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hui Zhao
- State Key Laboratory Base of Eco-Chemical Engineering Department of Chemical Engineering Qingdao University of Science and Technology Qingdao 266042 Shandong P. R. China
| | - Jihai Duan
- State Key Laboratory Base of Eco-Chemical Engineering Department of Chemical Engineering Qingdao University of Science and Technology Qingdao 266042 Shandong P. R. China
| | - Zisheng Zhang
- State Key Laboratory Base of Eco-Chemical Engineering Department of Chemical Engineering Qingdao University of Science and Technology Qingdao 266042 Shandong P. R. China
| | - Weiwen Wang
- State Key Laboratory Base of Eco-Chemical Engineering Department of Chemical Engineering Qingdao University of Science and Technology Qingdao 266042 Shandong P. R. China
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17
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Wang J, Sun Y, Lai J, Pan R, Fan Y, Wu X, Ou M, Zhu Y, Fu L, Shi F, Wu Y. Two-dimensional graphitic carbon nitride/N-doped carbon with a direct Z-scheme heterojunction for photocatalytic generation of hydrogen. NANOSCALE ADVANCES 2021; 3:6580-6586. [PMID: 36132663 PMCID: PMC9419065 DOI: 10.1039/d1na00629k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 09/07/2021] [Indexed: 05/08/2023]
Abstract
Photocatalysts with a direct Z-scheme heterojunction are promising by virtue of the effectively enhanced separation of charge carriers, high retention of redox ability and the absence of backward photocatalytic reactions. Their activity depends on band alignment and interfacial configurations between two semiconductors for charge carrier kinetics and the effective active sites for photochemical reactions. Herein, a two-dimensional (2D) graphitic carbon nitride/N-doped carbon (C3N4/NC) photocatalyst is synthesized by a gas template (NH4Cl)-assisted thermal condensation method. C3N4/NC has the synthetic merits of a direct Z-scheme heterojunction, 2D-2D interfacial contact, and enhanced specific surface area to improve charge separation kinetics and provide abundant active sites for photochemical reaction. It exhibits an over 46-fold increase of the photocatalytic hydrogen production rate compared to bulk C3N4 under visible light illumination. This work demonstrates the great potential of 2D Z-scheme heterojunctions for photocatalysis and will inspire more related work in the future.
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Affiliation(s)
- Jing Wang
- College of Chemical Engineering, School of Energy Science and Engineering, Nanjing Tech University Nanjing Jiangsu 211816 China
| | - Youcai Sun
- College of Chemical Engineering, School of Energy Science and Engineering, Nanjing Tech University Nanjing Jiangsu 211816 China
| | - Jianwei Lai
- John and Willie Leone Family Department of Energy and Mineral Engineering, Pennsylvania State University University Park PA 16802 USA
| | - Runhui Pan
- College of Chemical Engineering, School of Energy Science and Engineering, Nanjing Tech University Nanjing Jiangsu 211816 China
| | - Yulei Fan
- College of Chemical Engineering, School of Energy Science and Engineering, Nanjing Tech University Nanjing Jiangsu 211816 China
| | - Xiongwei Wu
- School of Chemistry and Materials Science, Hunan Agricultural University Changsha 410128 China
| | - Man Ou
- College of Chemical Engineering, School of Energy Science and Engineering, Nanjing Tech University Nanjing Jiangsu 211816 China
| | - Yusong Zhu
- College of Chemical Engineering, School of Energy Science and Engineering, Nanjing Tech University Nanjing Jiangsu 211816 China
| | - Lijun Fu
- College of Chemical Engineering, School of Energy Science and Engineering, Nanjing Tech University Nanjing Jiangsu 211816 China
| | - Feifei Shi
- John and Willie Leone Family Department of Energy and Mineral Engineering, Pennsylvania State University University Park PA 16802 USA
| | - Yuping Wu
- College of Chemical Engineering, School of Energy Science and Engineering, Nanjing Tech University Nanjing Jiangsu 211816 China
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18
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Chen Q, Mo W, Yang G, Zhong S, Lin H, Chen J, Bai S. Significantly Enhanced Photocatalytic CO 2 Reduction by Surface Amorphization of Cocatalysts. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2102105. [PMID: 34558184 DOI: 10.1002/smll.202102105] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 07/10/2021] [Indexed: 06/13/2023]
Abstract
Rational phase engineering of reduction cocatalyst offers a promising route to modulate the photocatalytic activity and selectivity in the conversion of CO2 to chemical feedstocks. However, it remains a great challenge to choose a suitable phase given that high-crystallinity phase is more conducive to the charge transfer and separation, while amorphous phase is more favorable for the adsorption and activation of CO2 molecules. To resolve this dilemma, herein, with Pd as a well-defined model, a surface amorphization strategy has been developed to fabricate crystalline@amorphous semi-core-shell cocatalysts based on the transformation of outer layer atoms of crystalline cocatalysts to disorder phase. According to the theoretical and experimental analysis, in the heterostructured cocatalysts, crystalline core shuttles the photoexcited electrons from light-harvesting semiconductor to amorphous shell due to its strong electronic coupling with both components. Meanwhile, amorphous shell provides efficient active sites for preferential activation and conversion of CO2 and suppression of undesirable proton reduction. Benefiting from the synergistic effects between crystalline core and amorphous shell, the optimized heterophase cocatalyst with suitable thickness of amorphous shell achieves superior CO (22.2 µmol gcat-1 h-1 ) and CH4 (38.1 µmol gcat-1 h-1 ) formation rates with considerable selectivity and high stability in comparison with crystalline and amorphous counterparts.
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Affiliation(s)
- Qin Chen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Weihao Mo
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Guodong Yang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Shuxian Zhong
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Hongjun Lin
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Jianrong Chen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
| | - Song Bai
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang, 321004, P. R. China
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19
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Zhou Y, Jiao W, Xie Y, He F, Ling Y, Yang Q, Zhao J, Ye H, Hou Y. Enhanced photocatalytic CO 2-reduction activity to form CO and CH 4 on S-scheme heterostructured ZnFe 2O 4/Bi 2MoO 6 photocatalyst. J Colloid Interface Sci 2021; 608:2213-2223. [PMID: 34753624 DOI: 10.1016/j.jcis.2021.10.053] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 10/10/2021] [Accepted: 10/11/2021] [Indexed: 10/20/2022]
Abstract
A novel ZnFe2O4/Bi2MoO6 heterojunction photocatalyst was synthesized by a facile solvothermal route. The incorporation of a narrow bandgap ZnFe2O4 photocatalyst can efficiently improve the range of light response and light absorption capacity of the Bi2MoO6 via the formation of a hybrid structure at the interface. The formed hybrid interface facilitates the separation efficiency of photo-generated carriers at ZnFe2O4/Bi2MoO6 heterojunction significantly. The experimental results confirm that ZnFe2O4/Bi2MoO6-20% heterojunction showed the highest photocatalytic efficiency for CO2 reduction. Specifically, the total product yield of 47.1 μmol g-1 under 5 h simulated sunlight irradiation is measured in the counterparts of pure ZnFe2O4 (14.79 μmol g-1) and pure Bi2MoO6 (19.01 μmol g-1). Indeed, the formation of ZnFe2O4/Bi2MoO6 heterojunction improved the photocatalytic efficiency for CO2 reduction.
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Affiliation(s)
- Yipeng Zhou
- College of Environment and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, China
| | - Wenyu Jiao
- College of Environment and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, China
| | - Yu Xie
- College of Environment and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, China.
| | - Fan He
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou China
| | - Yun Ling
- College of Environment and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, China
| | - Qi Yang
- College of Environment and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, China
| | - Jinsheng Zhao
- Shandong Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252059, China.
| | - Hao Ye
- College of Environment and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, China
| | - Yang Hou
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou China; School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China.
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20
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Zhang Z, Sun J, Chen X, Wu G, Jin Z, Guo D, Liu L. The synergistic effect of enhanced photocatalytic activity and photothermal effect of oxygen-deficient Ni/reduced graphene oxide nanocomposite for rapid disinfection under near-infrared irradiation. JOURNAL OF HAZARDOUS MATERIALS 2021; 419:126462. [PMID: 34214854 DOI: 10.1016/j.jhazmat.2021.126462] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/02/2021] [Accepted: 06/21/2021] [Indexed: 06/13/2023]
Abstract
The rational design of high antibacterial efficiency are urgently needed as the occurrence of drug-resistance issues. Hence, Ni/reduced graphene oxide nanocomposite (Ni/rGO) with different amounts of oxygen vacancies were fabricated for efficient disinfection. The optimized Ni/rGO (A100) exhibited highly effective inactivation efficacy of 99.6% and 99.5% against Escherichia coli and Bacillus subtilis within 8 min near-infrared (NIR) irradiation through the synergistic effects of photothermal therapy and oxidative damage, which were much higher than single treatment. The A100 nanocomposite achieved an extraordinary photothermal conversion efficiency (35.78%) under the 808 nm irradiation for enhanced photothermal hyperthermia, thereby destroying the cell membrane and accelerating the GSH depletion. The radical scavenger experiment confirmed that •O2- and •OH play the chief role in photodisinfection reaction. Besides, A100 could exert significant damage on the ATP synthesis. The excellent photothermal performance and photocatalytic activity can be attributed to the appropriate oxygen vacancy density, which improves the absorption of NIR light and facilitates the separation of photogenerated electron-hole pairs. Besides, the higher NiO content of A100 contributed to improving the photocatalytic effect. Our work demonstrated a promising strategy for efficient water pollution purification caused by pathogenic bacteria.
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Affiliation(s)
- Ze Zhang
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 38 Tongyan Rd., Tianjin 300350, PR China
| | - Jingyu Sun
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 38 Tongyan Rd., Tianjin 300350, PR China
| | - Xue Chen
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 38 Tongyan Rd., Tianjin 300350, PR China
| | - Guizhu Wu
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 38 Tongyan Rd., Tianjin 300350, PR China
| | - Zhengguo Jin
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 38 Tongyan Rd., Tianjin 300350, PR China
| | - Donggang Guo
- Shanxi Laboratory for Yellow River, College of Environment and Resource, Shanxi University, 92 Wucheng Rd., Shanxi 030006, PR China.
| | - Lu Liu
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 38 Tongyan Rd., Tianjin 300350, PR China.
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21
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Facilely anchoring Cu2O nanoparticles on mesoporous TiO2 nanorods for enhanced photocatalytic CO2 reduction through efficient charge transfer. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.10.047] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Xi Y, Chen W, Dong W, Fan Z, Wang K, Shen Y, Tu G, Zhong S, Bai S. Engineering an Interfacial Facet of S-Scheme Heterojunction for Improved Photocatalytic Hydrogen Evolution by Modulating the Internal Electric Field. ACS APPLIED MATERIALS & INTERFACES 2021; 13:39491-39500. [PMID: 34378912 DOI: 10.1021/acsami.1c11233] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Constructing a step-scheme (S-scheme) heterojunction represents a promising route to overcome the drawbacks of single-component and traditional heterostructured photocatalysts by simultaneously broadening the optical response range and optimizing the redox ability of the photocatalytic system, the efficiency of which greatly lies in the separation behaviors of photogenerated charge carriers with strong redox capabilities. Herein, we demonstrate interfacial facet engineering as an effective strategy to manipulate the charge transfer and separation for substantially improving the photocatalytic activities of S-scheme heterojunctions. The facet engineering is performed with the growth of ZnIn2S4 on (010) and (001) facet-dominated BiOBr nanosheets to fabricate ZIS/BOB-(010) and ZIS/BOB-(001) S-scheme heterojunctions, respectively. It is disclosed that a larger Fermi level difference between BiOBr-(001) and ZnIn2S4 enables the formation of a stronger built-in electric field with more serious band bending in the space charge region around the interface. As a result, the directional migration and recombination of pointless photoexcited electrons in the conduction band (CB) of BiOBr and holes in the valence band (VB) of ZnIn2S4 with weak redox ability are speeded up enormously, thereby contributing to more efficient spatial separation of powerful CB electrons of ZnIn2S4 and VB holes of BiOBr for participating in overall redox reactions. Profiting from these merits, the ZIS/BOB-(001) displays a significant superiority in photocatalytic H2 evolution over ZIS/BOB-(010) and mono-component counterparts. This work provides new deep insights into the rational construction of a S-scheme photocatalyst based on an interfacial facet design from the viewpoint of internal electric field regulation.
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Affiliation(s)
- Yamin Xi
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
| | - Wenbin Chen
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
| | - Wenrou Dong
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
| | - Zhixin Fan
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
| | - Kefeng Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
| | - Yue Shen
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
| | - Gaomei Tu
- Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
| | - Shuxian Zhong
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
| | - Song Bai
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
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23
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Hetero-mixed TiO2-SnO2 interfaced nano-oxide catalyst with enhanced activity for selective oxidation of furfural to maleic acid. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108637] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Platinum quantum dots enhance electrocatalytic activity of bamboo-like nitrogen doped carbon nanotubes embedding Co-MnO nanoparticles for methanol/ethanol oxidation. J Colloid Interface Sci 2021; 590:164-174. [PMID: 33548600 DOI: 10.1016/j.jcis.2021.01.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/12/2021] [Accepted: 01/16/2021] [Indexed: 11/24/2022]
Abstract
Interaction of multi-active components can effectively maximize the overall catalytic ability of alcohol fuel cells. Herein, the self-assembled nitrogen doped carbon nanotubes (NCNTs) containing Co-MnO composite (Co-MnO/NCNTs) are successfully synthesized using dihydrodiamine as carbon and nitrogen source through one-step synthesis. In order to further improve the catalytic activity of Co-MnO/NCNTs for alcohol oxidation, small amounts of platinum quantum dots are uniformly loaded on Co-MnO/NCNTs formation of quaternary hybrid (named Pt/Co-MnO/NCNTs) during microwave reduction stage. Notably, the prepared Pt/Co-MnO/NCNTs hybrids possess the excellent methanol and ethanol oxidation mass current density of 1775.4 and 1112.8 mA mg-1 in alkaline condition, which are 3.6 and 2.25 times higher than that of Pt/C catalysts, respectively. The current density of ethanol catalytic oxidation is lower than that of methanol, which may be due to the partial oxidation of acetyl (the intermediate product of ethanol) on the Pt (1 1 1) crystal surface. More importantly, CO oxidation experiments reveal that strong electronic synergistic effect between MnO and Pt quantum dot can greatly improve the CO anti-poisoning ability. Another significant advantage of Pt/Co-MnO/NCNTs is that low platinum loading leads to low cost effective, which demonstrates that the modification non-noble metal catalysts with a few noble metals quantum dots is a promising choice to mass produce high performance catalyst with remarkably boosting electrocatalytic activity for alcohol oxidation.
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25
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Yang G, Chen Q, Wang W, Wu S, Gao B, Xu Y, Chen Z, Zhong S, Chen J, Bai S. Cocatalyst Engineering in Piezocatalysis: A Promising Strategy for Boosting Hydrogen Evolution. ACS APPLIED MATERIALS & INTERFACES 2021; 13:15305-15314. [PMID: 33775098 DOI: 10.1021/acsami.1c01550] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Piezoelectric semiconductor-based piezocatalysis has emerged as a promising approach for converting mechanical energy into chemical energy for renewable hydrogen generation and wastewater treatment under the action of mechanical vibration. Similar to photocatalysis, piezocatalysis is triggered by the separation, transfer, and consumption of piezo-generated electrons and holes. Inspired by this, herein, we report that the cocatalyst, which is widely used in photocatalysis, can also improve the semiconductor-based piezocatalytic properties. In the proof-of-concept design, well-defined Pd as a model cocatalyst has been deposited on the surface of piezoelectric BiFeO3 nanosheets, which not only facilitates the separation of charge carriers by accepting the piezoelectrons from BiFeO3 but also lowers the activation energy/overpotential through supplying highly active sites for the proton reduction reaction. Consequently, the as-obtained hybrid piezocatalyst delivers a high H2 evolution rate of 11.4 μmol h-1 (10 mg of catalyst), 19.0 times as high as that of bare BiFeO3. The band tilting induced by the piezoelectric potential is proposed to lower or eliminate the Schottky barrier and smooth the electron transfer from BiFeO3 to Pd, while the exposed facet, domain size, and loading amount of Pd cocatalyst are proved to be the key parameters determining the ultimate piezocatalytic activity. Our work provides some enlightenment on advancing the design and fabrication of more efficient piezocatalysts for H2 evolution based on rational engineering on the cocatalyst.
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Affiliation(s)
- Guodong Yang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
| | - Qin Chen
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, Zhejiang 21004, P. R. China
| | - Weijun Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
| | - Shijie Wu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
| | - Binjia Gao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
| | - Yanbo Xu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
| | - Zheng Chen
- School of Materials and Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, P. R. China
| | - Shuxian Zhong
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, Zhejiang 21004, P. R. China
| | - Jianrong Chen
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, Zhejiang 21004, P. R. China
| | - Song Bai
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, P. R. China
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26
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Megala S, Ravi P, Maadeswaran P, Navaneethan M, Sathish M, Ramesh R. The construction of a dual direct Z-scheme NiAl LDH/g-C 3N 4/Ag 3PO 4 nanocomposite for enhanced photocatalytic oxygen and hydrogen evolution. NANOSCALE ADVANCES 2021; 3:2075-2088. [PMID: 36133087 PMCID: PMC9418587 DOI: 10.1039/d0na01074j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 02/03/2021] [Indexed: 06/16/2023]
Abstract
Dual direct Z-scheme photocatalysts for overall water decomposition have demonstrated strong redox abilities and the efficient separation of photogenerated electron-hole pairs. Overall water splitting utilizing NiAl-LDH-based binary and ternary nanocomposites has been extensively investigated. The synthesized binary and ternary nanocomposites were characterized via XRD, FTIR, SEM, HRTEM, XPS, UV-DRS, and photoelectrochemical measurements. The surface wettability properties of the prepared nanocomposites were measured via contact angle measurements. The application of the NiAl-LDH/g-C3N4/Ag3PO4 ternary nanocomposite was investigated for photocatalytic overall water splitting under light irradiation. In this work, we found that in the presence of Ag3PO4, the evolution of H2 and O2 is high over LCN30, and 2.8- fold (O2) and 1.4-fold (H2) activity increases can be obtained compared with the use of LCN30 alone. It is proposed that Ag3PO4 is involved in the O2 evolution reaction during water oxidation and g-C3N4 is involved in overall water splitting. Our work not only reports overall water splitting using NiAl-LDH-based nanocomposites but it also provides experimental evidence for understanding the possible reaction process and the mechanism of photocatalytic water splitting. Photoelectrochemical measurements confirmed the better H2 and O2 evolution abilities of NiAl-LDH/g-C3N4/Ag3PO4 in comparison with NiAl LDH, g-C3N4, Ag3PO4, and LCN30. The observed improvement in the gas evolution properties of NiAl LDH in the presence of Ag3PO4 is due to the formation of a dual direct Z-scheme, which allows for the easier and faster separation of charge carriers. More importantly, the LCNAP5 heterostructure shows high levels of H2 and O2 evolution, which are significantly enhanced compared with LCN30 and pure NiAl LDH.
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Affiliation(s)
- S Megala
- Department of Physics, Periyar University Salem-636011 Tamil Nadu India
| | - P Ravi
- Electrochemical Power Sources Division, Central Electrochemical Research Institute Karaikudi-630006 Tamil Nadu India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
| | - P Maadeswaran
- Department of Energy Science, Periyar University Salem-636011 Tamil Nadu India
| | - M Navaneethan
- Nanotechnology Research Center (NRC), Faculty of Engineering and Technology, SRM Institute of Science and Technology Kattankulathur Chennai 603203 Tamil Nadu India
| | - M Sathish
- Electrochemical Power Sources Division, Central Electrochemical Research Institute Karaikudi-630006 Tamil Nadu India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
| | - R Ramesh
- Department of Physics, Periyar University Salem-636011 Tamil Nadu India
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Innovative multifunctional hybrid photoelectrode design based on a ternary heterojunction with super-enhanced efficiency for artificial photosynthesis. Sci Rep 2020; 10:10669. [PMID: 32606452 DOI: 10.1038/s41598-020-67768-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 06/11/2020] [Indexed: 01/05/2023] Open
Abstract
Electrochemical cells for direct conversion of solar energy to electricity (or hydrogen) are one of the most sustainable solutions to meet the increasing worldwide energy demands. In this report, a novel and highly-efficient ternary heterojunction-structured Bi4O7/Bi3.33(VO4)2O2/Bi46V8O89 photoelectrode is presented. It is demonstrated that the combination of an inversion layer, induced by holes (or electrons) at the interface of the semiconducting Bi3.33(VO4)2O2 and Bi46V8O89 components, and the rectifying contact between the Bi4O7 and Bi3.33(VO4)2O2 phases acting afterward as a conventional p-n junction, creates an adjustable virtual p-n-p or n-p-n junction due to self-polarization in the ion-conducting Bi46V8O89 constituent. This design approach led to anodic and cathodic photocurrent densities of + 38.41 mA cm-2 (+ 0.76 VRHE) and- 2.48 mA cm-2 (0 VRHE), respectively. Accordingly, first, this heterojunction can be used either as photoanode or as photocathode with great performance for artificial photosynthesis, noting, second, that the anodic response reveals exceptionally high: more than 300% superior to excellent values previously reported in the literature.
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Zhao L, Zhao Z, Li Y, Chu X, Li Z, Qu Y, Bai L, Jing L. The synthesis of interface-modulated ultrathin Ni(ii) MOF/g-C 3N 4 heterojunctions as efficient photocatalysts for CO 2 reduction. NANOSCALE 2020; 12:10010-10018. [PMID: 32350498 DOI: 10.1039/d0nr02551h] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
It is highly desirable to improve charge separation and to provide catalytic functions for the efficient photocatalytic CO2 reduction reaction (CO2RR) on g-C3N4 (CN). Here, dimension-matched ultrathin NiMOF/CN heterojunctions have been successfully constructed by the in situ growth of NiMOF nanosheets on hydroxylated and 1,4-aminobenzoic acid (AA) functionalized CN nanosheets, respectively, with ultrasonic assistance. The resultant NiMOF/CN heterojunctions exhibited excellent photocatalytic activities for the CO2RR to produce CO and CH4, especially NiMOF/CN-AA, which had photoactivity 18 times higher than that of bare CN. Based on the surface photovoltage responses, wavelength-dependent photocurrent action spectra, electrochemical impedance spectra, and CO2 electrochemical reduction data, it is clearly confirmed that the exceptional photoactivity mainly resulted from the favorable charge transport properties of ultrathin CN and coupled NiMOF, and from the greatly enhanced charge separation via excited high-level electron transfer from CN to NiMOF in the resultant intimately contacted heterojunction caused by the induction effect of AA, and also from the provided catalytic functionality of the central Ni(ii) for CO2 activation. This work provides a feasible synthetic protocol to fabricate MOF-containing dimension-matched heterojunctions with good charge separation for efficient photocatalysis.
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Affiliation(s)
- Lina Zhao
- Key Laboratory of Functional Inorganic Materials Chemistry (Ministry of Education), School of Chemistry and Materials Science, International Joint Research Center and Lab for Catalytic Technology, Heilongjiang University, Harbin 150080, P. R. China.
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