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Cheng L, Wu Q, Sun H, Tang Y, Xiang Q. Toward Functionality and Deactivation of Metal-Single-Atom in Heterogeneous Photocatalysts. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2406807. [PMID: 38923045 DOI: 10.1002/adma.202406807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/15/2024] [Indexed: 06/28/2024]
Abstract
Single-atom heterogeneous catalysts (SAHCs) provide an enticing platform for understanding catalyst structure-property-performance relationships. The 100% atom utilization and adjustable local coordination configurations make it easy to probe reaction mechanisms at the atomic level. However, the progressive deactivation of metal-single-atom (MSA) with high surface energy leads to frequent limitations on their commercial viability. This review focuses on the atomistic-sensitive reactivity and atomistic-progressive deactivation of MSA to provide a unifying framework for specific functionality and potential deactivation drivers of MSA, thereby bridging function, purpose-modification structure-performance insights with the atomistic-progressive deactivation for sustainable structure-property-performance accessibility. The dominant functionalization of atomically precise MSA acting on properties and reactivity encompassing precise photocatalytic reactions is first systematically explored. Afterward, a detailed analysis of various deactivation modes of MSA and strategies to enhance their durability is presented, providing valuable insights into the design of SAHCs with deactivation-resistant stability. Finally, the remaining challenges and future perspectives of SAHCs toward industrialization, anticipating shedding some light on the next stage of atom-economic chemical/energy transformations are presented.
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Affiliation(s)
- Lei Cheng
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Qiaolin Wu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Hanjun Sun
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Yawen Tang
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, 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, Sichuan, 610054, P. R. China
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Huang X, Du R, Zhang Y, Ren J, Yang Q, Wang K, Ni Y, Yao Y, Ali Soomro R, Guo L, Yang C, Wang D, Xu B, Fu F. Modulating charge oriented accumulation via interfacial chemical-bond on In 2O 3/Bi 2MoO 6 heterostructures for photocatalytic nitrogen fixation. J Colloid Interface Sci 2024; 664:33-44. [PMID: 38458053 DOI: 10.1016/j.jcis.2024.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 02/29/2024] [Accepted: 03/03/2024] [Indexed: 03/10/2024]
Abstract
Photocatalytic nitrogen fixation presents an eco-friendly approach to converting atmospheric nitrogen into ammonia (NH3), but the process faces challenges due to rapid interface charge recombination. Here, we report an innovative charge transfer and oriented accumulation strategy using an In-O-Mo bond-modulated S-scheme heterostructure composed of In2O3/Bi2MoO6 (In/BMO) synthesized using a simple electrostatic assembly. The unique interfacial arrangement with optimal photocatalyst configuration (3 % In/BMO) enabled enhanced photogenerated electron separation and transfer, leading to a remarkable nitrogen fixation rate of approximately 150.9 μmol·gcat-1·h-1 under visible light irradiation. The performance of the photocatalyst was 9-fold and 27-fold higher than that of its pristine components, Bi2MoO6 and In2O3, respectively. The experimental and theoretical evaluation deemed interfacial In-O-Mo bonds crucial for rapid transfer and charge-oriented accumulation. Whereas the generated internal electric field drove the spatial separation and transfer of photo-generated electrons and holes, significantly enhancing the photocatalytic N2-to-NH3 conversion efficiency. The proposed work lays the foundation for designing S-scheme heterostructures with highly efficient interfacial bonds, offering a promising avenue for substantial improvements in photocatalytic nitrogen fixation.
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Affiliation(s)
- Xin Huang
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Rui Du
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Yuanyuan Zhang
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Jingyu Ren
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Qisheng Yang
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Kangning Wang
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Yang Ni
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Yuqi Yao
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Razium Ali Soomro
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Li Guo
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China.
| | - Chunming Yang
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China.
| | - Danjun Wang
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China.
| | - Bin Xu
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Feng Fu
- Yan'an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank Coal, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
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Bao T, Xi Y, Zhang C, Du P, Xiang Y, Li J, Yuan L, Yu C, Liu C. Highly efficient nitrogen fixation over S-scheme heterojunction photocatalysts with enhanced active hydrogen supply. Natl Sci Rev 2024; 11:nwae093. [PMID: 38577667 PMCID: PMC10989659 DOI: 10.1093/nsr/nwae093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 03/04/2024] [Accepted: 03/08/2024] [Indexed: 04/06/2024] Open
Abstract
Photocatalytic N2 fixation is a promising strategy for ammonia (NH3) synthesis; however, it suffers from relatively low ammonia yield due to the difficulty in the design of photocatalysts with both high charge transfer efficiency and desirable N2 adsorption/activation capability. Herein, an S-scheme CoSx/ZnS heterojunction with dual active sites is designed as an efficient N2 fixation photocatalyst. The CoSx/ZnS heterojunction exhibits a unique pocket-like nanostructure with small ZnS nanocrystals adhered on a single-hole CoSx hollow dodecahedron. Within the heterojunction, the electronic interaction between ZnS and CoSx creates electron-deficient Zn sites with enhanced N2 chemisorption and electron-sufficient Co sites with active hydrogen supply for N2 hydrogenation, cooperatively reducing the energy barrier for N2 activation. In combination with the promoted photogenerated electron-hole separation of the S-scheme heterojunction and facilitated mass transfer by the pocket-like nanostructure, an excellent N2 fixation performance with a high NH3 yield of 1175.37 μmol g-1 h-1 is achieved. This study provides new insights into the design of heterojunction photocatalysts for N2 fixation.
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Affiliation(s)
- Tong Bao
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Yamin Xi
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Chaoqi Zhang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Peiyang Du
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Yitong Xiang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Jiaxin Li
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Ling Yuan
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Chengzhong Yu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane 4072, Australia
| | - Chao Liu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
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Tang Y, Tai R, Song X, Gao S, Wu R, Chen S, Li P, Wang Q. Zinc-Doped BiOBr Hollow Microspheres for Enhanced Visible Light Photocatalytic Degradation of Antibiotic Residues. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:6515-6523. [PMID: 38466089 DOI: 10.1021/acs.langmuir.4c00155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Photocatalysis represents an effective technology for environmental remediation. Herein, a series of Zn-doped BiOBr hollow microspheres are synthesized via one-pot solvothermal treatment of bismuth nitrate and dodecyl ammonium bromide in ethylene glycol along with a calculated amount of zinc acetate. Whereas the materials morphology and crystal structure remain virtually unchanged upon Zn-doping, the photocatalytic performance toward the degradation of ciprofloxacin is significantly improved under visible light irradiation. This is due to the formation of a unique band structure that facilitates the separation of photogenerated electron-hole pairs, reduced electron-transfer resistance, and enhanced electron mobility and carrier concentration. The best sample consists of a Zn doping amount of 1%, which leads to a 99.2% degradation rate of ciprofloxacin under visible photoirradiation for 30 min. The resulting photocatalysts also exhibit good stability and reusability, and the degradation intermediates exhibit reduced cytotoxicity compared to ciprofloxacin. These results highlight the unique potential of BiOBr-based photocatalysts for environmental remediation.
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Affiliation(s)
- Yao Tang
- Laboratory for Micro-sized Functional Materials & College of Elementary Education and Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Ran Tai
- Laboratory for Micro-sized Functional Materials & College of Elementary Education and Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Xingjian Song
- Department of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, California 95064, United States
| | - Shuai Gao
- Laboratory for Micro-sized Functional Materials & College of Elementary Education and Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Runjie Wu
- Laboratory for Micro-sized Functional Materials & College of Elementary Education and Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Shaowei Chen
- Department of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, California 95064, United States
| | - Peishen Li
- College of Environmental Sciences and Engineering, The Key Laboratory of Water and Sediment Sciences (MOE), Peking University, Beijing 100871, China
| | - Qiang Wang
- Laboratory for Micro-sized Functional Materials & College of Elementary Education and Department of Chemistry, Capital Normal University, Beijing 100048, China
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Yu Y, Wei X, Chen W, Qian G, Chen C, Wang S, Min D. Design of Single-Atom Catalysts for E lectrocatalytic Nitrogen Fixation. CHEMSUSCHEM 2024; 17:e202301105. [PMID: 37985420 DOI: 10.1002/cssc.202301105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 11/18/2023] [Accepted: 11/20/2023] [Indexed: 11/22/2023]
Abstract
The Electrochemical nitrogen reduction reaction (ENRR) can be used to solve environmental problems as well as energy shortage. However, ENRR still faces the problems of low NH3 yield and low selectivity. The NH3 yield and selectivity in ENRR are affected by multiple factors such as electrolytic cells, electrolytes, and catalysts, etc. Among these catalysts are at the core of ENRR research. Single-atom catalysts (SACs) with intrinsic activity have become an emerging technology for numerous energy regeneration, including ENRR. In particular, regulating the microenvironment of SACs (hydrogen evolution reaction inhibition, carrier engineering, metal-carrier interaction, etc.) can break through the limitation of intrinsic activity of SACs. Therefore, this Review first introduces the basic principles of NRR and outlines the key factors affecting ENRR. Then a comprehensive summary is given of the progress of SACs (precious metals, non-precious metals, non-metallic) and diatomic catalysts (DACs) in ENRR. The impact of SACs microenvironmental regulation on ENRR is highlighted. Finally, further research directions for SACs in ENRR are discussed.
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Affiliation(s)
- Yuanyuan Yu
- College of Light Industry and Food Engineering, Guangxsi University, Nanning, 530004, P. R. China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning, 530004, P. R. China
| | - Xiaoxiao Wei
- College of Light Industry and Food Engineering, Guangxsi University, Nanning, 530004, P. R. China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning, 530004, P. R. China
| | - Wangqian Chen
- College of Light Industry and Food Engineering, Guangxsi University, Nanning, 530004, P. R. China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning, 530004, P. R. China
| | - Guangfu Qian
- College of Light Industry and Food Engineering, Guangxsi University, Nanning, 530004, P. R. China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning, 530004, P. R. China
| | - Changzhou Chen
- College of Light Industry and Food Engineering, Guangxsi University, Nanning, 530004, P. R. China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning, 530004, P. R. China
| | - Shuangfei Wang
- College of Light Industry and Food Engineering, Guangxsi University, Nanning, 530004, P. R. China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning, 530004, P. R. China
| | - Douyong Min
- College of Light Industry and Food Engineering, Guangxsi University, Nanning, 530004, P. R. China
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning, 530004, P. R. China
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Wu E, Chen H, Tang L, Zeng L, Ji H, Zhu M. Molecular understanding on ultraviolet photolytic degradation of cyano liquid crystal monomers. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133033. [PMID: 38006861 DOI: 10.1016/j.jhazmat.2023.133033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 11/10/2023] [Accepted: 11/16/2023] [Indexed: 11/27/2023]
Abstract
Cyano liquid crystal monomers (LCMs) are proposed as emerging chemical pollutants with persistent, bioaccumulative, and toxic properties. Herein, five cyano LCMs, including 4-cyano-4'-ethylbiphenyl (2CB), 4-Butyl-4'-cyanobiphenyl (4CB), 4-cyano-4'-ethoxybiphenyl (2OCB), 4-(trans-4-Ethylcyclohexyl)benzonitrile (2CHB) and 4-(trans-4-Vinylcyclohexyl)benzonitrile (2eCHB), were selected to investigate the reaction kinetics and excited state characteristic variations with their molecular structures by ultraviolet (UV) photolysis. Theoretical calculations reveal that the benzene ring, ethoxy and double bond can deeply alter the electron distribution of cyano LCMs. This will affect the exciton separation ability, excitation properties and active sites to electrophilic attack, causing the distinction in photolysis efficiency. Due to the effective charge separation during local excitation (LE) process and the property of being most susceptible to electrophilic attack by 1O2 and O2•-, 2eCHB with double bond exhibits the largest degradation rate. Conversely, the weakest exciton separation of 2OCB with ethoxy during charge transfer (CT) process limits its subsequent sensitized photolysis process. The molecular orbital and fragment contributions to holes and electrons further deepen the understanding of the excited states charge transfer. This study confirmed that the intrinsic molecular structure, chemical nature and existing sites directly defined the excitation and decomposition activity in the UV photolysis of cyano LCMs.
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Affiliation(s)
- Enya Wu
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, PR China
| | - Hanchun Chen
- Eco-environment and Resource Efficiency Research Laboratory, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, PR China
| | - Lingfang Tang
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, PR China
| | - Lixi Zeng
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, PR China
| | - Haodong Ji
- Eco-environment and Resource Efficiency Research Laboratory, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, PR China.
| | - Mingshan Zhu
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, PR China.
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Tai R, Gao S, Tang Y, Ma X, Ding P, Wu R, Li P, Song X, Chen S, Wang Q. Defect Engineering of Bi 2 WO 6 for Enhanced Photocatalytic Degradation of Antibiotic Pollutants. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2310785. [PMID: 38334181 DOI: 10.1002/smll.202310785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/24/2024] [Indexed: 02/10/2024]
Abstract
Infiltration of excessive antibiotics into aquatic ecosystems plays a significant role in antibiotic resistance, a major global health challenge. It is therefore critical to develop effective technologies for their removal. Herein, defect-rich Bi2 WO6 nanoparticles are solvothermally prepared via epitaxial growth on pristine Bi2 WO6 seed nanocrystals, and the efficiency of the photocatalytic degradation of ciprofloxacin, a common antibiotic, is found to increase markedly from 62.51% to 98.27% under visible photoirradiation for 60 min. This is due to the formation of a large number of structural defects, where the synergistic interactions between grain boundaries and adjacent dislocations and oxygen vacancies lead to an improved separation and migration efficiency of photogenerated carriers and facilitate the adsorption and degradation of ciprofloxacin, as confirmed in experimental and theoretical studies. Results from this work demonstrate the unique potential of defect engineering for enhanced photocatalytic performance, a critical step in removing antibiotic contaminants in aquatic ecosystems.
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Affiliation(s)
- Ran Tai
- Laboratory for Micro-sized Functional Materials & College of Elementary Education and Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Shuai Gao
- Laboratory for Micro-sized Functional Materials & College of Elementary Education and Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Yao Tang
- Laboratory for Micro-sized Functional Materials & College of Elementary Education and Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Xinbo Ma
- Laboratory for Micro-sized Functional Materials & College of Elementary Education and Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Peiren Ding
- Laboratory for Micro-sized Functional Materials & College of Elementary Education and Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Runjie Wu
- Laboratory for Micro-sized Functional Materials & College of Elementary Education and Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Peishen Li
- College of Environmental Sciences and Engineering, The Key Laboratory of Water and Sediment Sciences (MOE), Peking University, Beijing, 100871, China
| | - Xingjian Song
- Department of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, CA, 95064, USA
| | - Shaowei Chen
- Department of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, CA, 95064, USA
| | - Qiang Wang
- Laboratory for Micro-sized Functional Materials & College of Elementary Education and Department of Chemistry, Capital Normal University, Beijing, 100048, China
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Yu LQ, Guo RT, Guo SH, Yan JS, Liu H, Pan WG. Research progress on photocatalytic reduction of CO 2 based on ferroelectric materials. NANOSCALE 2024; 16:1058-1079. [PMID: 38126461 DOI: 10.1039/d3nr05018a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Transforming CO2 into renewable fuels or valuable carbon compounds could be a practical means to tackle the issues of global warming and energy crisis. Photocatalytic CO2 reduction is more energy-efficient and environmentally friendly, and offers a broader range of potential applications than other CO2 conversion techniques. Ferroelectric materials, which belong to a class of materials with switchable polarization, are attractive candidates as catalysts due to their distinctive and substantial impact on surface physical and chemical characteristics. This review provides a concise overview of the fundamental principles underlying photocatalysis and the mechanism involved in CO2 reduction. Additionally, the composition and properties of ferroelectric materials are introduced. This review expands on the research progress in using ferroelectric materials for photocatalytic reduction of CO2 from three perspectives: directly as a catalyst, by modification, and construction of heterojunctions. Finally, the future potential of ferroelectric materials for photocatalytic CO2 reduction is presented. This review may be a valuable guide for creating reasonable and more effective photocatalysts based on ferroelectric materials.
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Affiliation(s)
- Ling-Qi Yu
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China.
| | - Rui-Tang Guo
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China.
- Shanghai Non-Carbon Energy Conversion and Utilization Institute, Shanghai 200090, People's Republic of China
| | - Sheng-Hui Guo
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China.
| | - Ji-Song Yan
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China.
| | - Hao Liu
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China.
| | - Wei-Guo Pan
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, People's Republic of China.
- Shanghai Non-Carbon Energy Conversion and Utilization Institute, Shanghai 200090, People's Republic of China
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He D, Wang W, Feng N, Zhang Z, Zhou D, Zhang J, Luo H, Li Y, Chen X, Wu J. Defect-Modified nano-BaTiO 3 as a Sonosensitizer for Rapid and High-Efficiency Sonodynamic Sterilization. ACS APPLIED MATERIALS & INTERFACES 2023; 15:15140-15151. [PMID: 36929922 DOI: 10.1021/acsami.2c23113] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Multidrug-resistant bacteria caused by the unlimited overuse of antibiotics pose a great challenge to global health. An antibacterial method based on reactive oxygen species (ROS) is one of the effective strategies without inducing bacterial resistance. Owing to the ability of generating ROS, piezocatalytic material-mediated sonodynamic therapy (SDT) has drawn much attention. However, its major challenge is the low ROS generation efficiency in the piezocatalytic process due to the poor charge carrier concentration of piezoelectric materials. Vacancy engineering can regulate the charge density and largely promote ROS generation under ultrasound (US) irradiation. Herein, a US-responsive self-doped barium titanate with controlled oxygen vacancy (Vo) concentrations was successfully synthesized through a facile thermal reduction treatment at different temperatures (i.e., 350, 400, and 450 °C), and the corresponding samples were named as BTO-350, BTO-400, and BTO-450, respectively. Then, the effect of Vo concentrations on ROS generation efficiency during the piezocatalytic process was systematically studied. And BTO-400 was found to possess the highest piezocatalytic activity and excellent sonodynamic antibacterial performance against Escherichia coli and Staphylococcus aureus. Furthermore, its antibacterial mechanism was confirmed that the ROS generated under US could damage bacterial cell membrane and cause considerable leakage of cytoplasmic components and irreversible death of bacteria. Notably, the in vivo results illustrated that the BTO-400 could serve as an effective antibacterial agent and accelerate skin healing via SDT therapy. In all, the Vo defect-modified nano-BaTiO3 has a noticeable potential to induce a rapid and efficient sterilization as well as skin tissue repair by SDT.
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Affiliation(s)
- Dongcai He
- College of Materials Science and Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Weijie Wang
- College of Materials Science and Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Nan Feng
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Ziqiang Zhang
- College of Materials Science and Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Dali Zhou
- College of Materials Science and Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Jing Zhang
- College of Architecture and Environment, Sichuan University, Chengdu 610065, Sichuan, China
| | | | - Yunfeng Li
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Xianchun Chen
- College of Polymer Science and Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Jiagang Wu
- College of Materials Science and Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
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