|
1
|
Liu S, Fan F, Li P, Sun R, Wan Y, Chang K, Zhou Y. Designing Surface-Defect Engineering to Enhance the Solar-Driven Conversion of CO 2 to C 2 Products over Zn 3In 2S 6/ZnS. J Phys Chem Lett 2023; 14:9978-9985. [PMID: 37905792 DOI: 10.1021/acs.jpclett.3c02675] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
The manipulation of electronic structure and prevention of photogenerated carriers from being quenched in bulk defects during the photocatalytic CO2 reduction reaction (CRR) have been effectively demonstrated through surface vacancy and defect engineering. In this work, the electronic structure on the surface of Zn3In2S6/ZnS (ZIS/ZnS) is significantly modified by the introduction and control of the surface S vacancies (SV) through Ar-plasma treatment. EPR and XPS analyses confirmed that SV was exclusively present on the ZIS/ZnS surface. The resulting ZIS/ZnS heterojunction photocatalysts demonstrate an impressive 46.6% selectivity toward C2 products even in the absence of cocatalysts. The mechanism of photocatalytic CRR is further elucidated through in situ analysis. Theoretical calculations demonstrate that the presence of In and Zn atoms adjacent to SV significantly enhances the adsorption of CO2 and facilitates C-C coupling.
Collapse
Affiliation(s)
- Shuaishuai Liu
- Centre for Hydrogenergy, College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Fang Fan
- Centre for Hydrogenergy, College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Pengxin Li
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
| | - Ruixue Sun
- Centre for Hydrogenergy, College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Yutong Wan
- Centre for Hydrogenergy, College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Kun Chang
- Centre for Hydrogenergy, College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Yong Zhou
- Key Laboratory of Modern Acoustics (MOE), Institute of Acoustics, School of Physics, National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Eco-Materials and Renewable Energy Research Center (ERERC), Jiangsu Key Laboratory for Nano Technology, Nanjing University, Nanjing, Jiangsu 210093, P. R. China
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, P. R. China
| |
Collapse
|
|
2
|
Li Z, Zhao Y, Deng Q, Zhu X, Tan Y, Feng Z, Ji H, Zhang S, Yao L. In Situ Growth of CdZnS Nanoparticles@Ti 3C 2T x MXene Nanosheet Heterojunctions for Boosted Visible-Light-Driven Photocatalytic Hydrogen Evolution. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2261. [PMID: 37570578 PMCID: PMC10421097 DOI: 10.3390/nano13152261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023]
Abstract
Using natural light energy to convert water into hydrogen is of great significance to solving energy shortages and environmental pollution. Due to the rapid recombination of photogenerated carriers after separation, the efficiency of photocatalytic hydrogen production using photocatalysts is usually very low. Here, efficient CdZnS nanoparticles@Ti3C2Tx MXene nanosheet heterojunction photocatalysts have been successfully prepared by a facile in situ growth strategy. Since the CdZnS nanoparticles uniformly covered the Ti3C2Tx Mxene nanosheets, the agglomeration phenomenon of CdZnS nanoparticles could be effectively inhibited, accompanied by increased Schottky barrier sites and an enhanced migration rate of photogenerated carriers. The utilization efficiency of light energy can be improved by inhibiting the recombination of photogenerated electron-hole pairs. As a result, under the visible-light-driven photocatalytic experiments, this composite achieved a high hydrogen evolution rate of 47.1 mmol h-1 g-1, which is much higher than pristine CdZnS and Mxene. The boosted photocatalytic performances can be attributed to the formed heterojunction of CdZnS nanoparticles and Ti3C2Tx MXene nanosheets, as well as the weakened agglomeration effects.
Collapse
Affiliation(s)
- Zelin Li
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China; (Z.L.); (Y.Z.); (X.Z.); (Y.T.); (Z.F.); (H.J.); (L.Y.)
- Research Center for Advanced Information Materials (CAIM), Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510555, China
| | - Yang Zhao
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China; (Z.L.); (Y.Z.); (X.Z.); (Y.T.); (Z.F.); (H.J.); (L.Y.)
- Research Center for Advanced Information Materials (CAIM), Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510555, China
| | - Qinglin Deng
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China; (Z.L.); (Y.Z.); (X.Z.); (Y.T.); (Z.F.); (H.J.); (L.Y.)
- Research Center for Advanced Information Materials (CAIM), Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510555, China
| | - Xuhui Zhu
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China; (Z.L.); (Y.Z.); (X.Z.); (Y.T.); (Z.F.); (H.J.); (L.Y.)
- Research Center for Advanced Information Materials (CAIM), Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510555, China
| | - Yipeng Tan
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China; (Z.L.); (Y.Z.); (X.Z.); (Y.T.); (Z.F.); (H.J.); (L.Y.)
- Research Center for Advanced Information Materials (CAIM), Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510555, China
| | - Ziwen Feng
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China; (Z.L.); (Y.Z.); (X.Z.); (Y.T.); (Z.F.); (H.J.); (L.Y.)
- Research Center for Advanced Information Materials (CAIM), Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510555, China
| | - Hao Ji
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China; (Z.L.); (Y.Z.); (X.Z.); (Y.T.); (Z.F.); (H.J.); (L.Y.)
- Research Center for Advanced Information Materials (CAIM), Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510555, China
| | - Shan Zhang
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China; (Z.L.); (Y.Z.); (X.Z.); (Y.T.); (Z.F.); (H.J.); (L.Y.)
- Research Center for Advanced Information Materials (CAIM), Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510555, China
| | - Lingmin Yao
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China; (Z.L.); (Y.Z.); (X.Z.); (Y.T.); (Z.F.); (H.J.); (L.Y.)
- Research Center for Advanced Information Materials (CAIM), Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510555, China
| |
Collapse
|
|
3
|
Yang Y, Ren W, Liu Y, Cai C, Zheng X, Meng S, Zhang L. Construction of shell-core Co 2P/Cd 0.9Zn 0.1S photocatalyst by electrostatic attraction for enhancing H 2 evolution. J Colloid Interface Sci 2023; 649:547-558. [PMID: 37356156 DOI: 10.1016/j.jcis.2023.06.132] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 06/08/2023] [Accepted: 06/18/2023] [Indexed: 06/27/2023]
Abstract
Solar energy-driven photocatalytic decomposition of water to produce H2 is of great significance for promoting the development of clean energy. To improve the efficiency of H2 production, a novel spherical Co2P/Cd0.9Zn0.1S (Co2P/CZS) composite with shell-core structure was successfully synthesized by electrostatic attraction. Under visible light irradiation, the optimal Co2P/CZS achieves an excellent H2 rate of 16.05 mmol h-1 g-1 in benzyl alcohol (PhCH2OH) solution, with a quantum efficiency of 34.3% at 450 nm. The Co2P thin layer coated on the CZS surface not only facilitates the photogenerated charge transfer from Co2P to CZS under visible light illumination, but reduces the energy barrier of PhCH2OH oxidation and H2 evolution. The present results show that shell-core Co2P/CZS composite may be one of promising catalyst to enhance the activity of H2 evolution, which provides an important reference basis for new catalyst design and wide prospects for further application of metal sulfides.
Collapse
Affiliation(s)
- Yang Yang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Wei Ren
- College of Chemistry and Material Science, Huaibei Normal University, Huaibei 235000, China
| | - Yangyang Liu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China
| | - Chun Cai
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Xiuzhen Zheng
- College of Chemistry and Material Science, Huaibei Normal University, Huaibei 235000, China
| | - Sugang Meng
- College of Chemistry and Material Science, Huaibei Normal University, Huaibei 235000, China
| | - Liwu Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China.
| |
Collapse
|
|
4
|
Li Z, Li W, Zhai L, Chen C, Zhang J, Wang Z. Oxygen defects and S-scheme heterojunctions synergistically promote the photocatalytic hydrogen evolution activity and stability of WO 2.72/Zn 0.5Cd 0.5S-DETA nanocomposites. J Colloid Interface Sci 2023; 646:834-843. [PMID: 37230001 DOI: 10.1016/j.jcis.2023.05.084] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/02/2023] [Accepted: 05/14/2023] [Indexed: 05/27/2023]
Abstract
The study analyzed the impact of oxygen defects and S-scheme heterojunction on the performance and stability of WO2.72/Zn0.5Cd0.5S-DETA (WO/ZCS) nanocomposites photocatalysts for hydrogen evolution. Results showed that ZCS alone under visible light had good photocatalytic hydrogen evolution activity (1.762 mmol g-1h-1) and stability (79.5 % activity retention rate after seven cycles, 21 h). The WO3/ZCS nanocomposites with S-scheme heterojunction had better hydrogen evolution activity (2.287 mmol g-1h-1), but poor stability (41.6 % activity retention rate). The WO/ZCS nanocomposites with S-scheme heterojunction and oxygen defects showed excellent photocatalytic hydrogen evolution activity (3.94 mmol g-1h-1) and stability (89.7 % activity retention rate). The specific surface area measurement and ultraviolet-visible spectroscopy diffuse reflectance spectroscopy indicate that oxygen defects lead to larger specific surface area and improved light absorption, respectively. The charge density difference confirms the existence of the S-scheme heterojunction and the amount of charge transfer, which accelerates the separation of photogenerated electron-hole pairs and enhances the utilization efficiency of light and charge. This study offers a new approach using the synergistic impact of oxygen defects and S-scheme heterojunction to enhance the photocatalytic hydrogen evolution activity and stability.
Collapse
Affiliation(s)
- Zhen Li
- College of Food Engineering, Anhui Science and Technology University, Fengyang, 233100, PR China.
| | - Wen Li
- College of Food Engineering, Anhui Science and Technology University, Fengyang, 233100, PR China
| | - Ligong Zhai
- College of Food Engineering, Anhui Science and Technology University, Fengyang, 233100, PR China
| | - Chunxu Chen
- College of Food Engineering, Anhui Science and Technology University, Fengyang, 233100, PR China
| | - Jinfeng Zhang
- School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000, PR China.
| | - Zhenghua Wang
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, PR China.
| |
Collapse
|
|
5
|
Cai M, Liu Y, Wang C, Lin W, Li S. Novel Cd0.5Zn0.5S/Bi2MoO6 S-scheme heterojunction for boosting the photodegradation of antibiotic enrofloxacin: Degradation pathway, mechanism and toxicity assessment. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122401] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
|
6
|
Li Z, Li Z, Liang J, Fan W, Li Y, Shen Y, Huang D, Yu Z, Wang S, Hou Y. Bi-functional S-scheme S-Bi2WO6/NiO heterojunction for photocatalytic ciprofloxacin degradation and CO2 reduction: mechanisms and pathways. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
|
7
|
Li Z, Lan D, Li Z, Sun J, Chen S, Yang J, Wei J, Yu Z, Wang S, Hou Y. Step-doped disulfide vacancies and functional groups synergistically enhance photocatalytic activity of S-scheme Cu 3SnS 4/L-BiOBr towards ciprofloxacin degradation. CHEMOSPHERE 2022; 301:134684. [PMID: 35472610 DOI: 10.1016/j.chemosphere.2022.134684] [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: 03/27/2022] [Revised: 04/11/2022] [Accepted: 04/20/2022] [Indexed: 06/14/2023]
Abstract
Development of efficient photocatalysts for efficient recalcitrant organic pollutants degradation is of great significance. Herein, the step-doped disulfide vacancies S-scheme Cu3SnS4/L-BiOBr (CTS/L-BiOBr) heterojunction photocatalyst was prepared for ciprofloxacin (CIP) degradation. X-ray photoelectron spectroscopy (XPS) analysis, ultraviolet photo-electron spectroscopy (UPS) analysis, band structure and dominant radicals' identification together verified that the transfer of photogenerated carriers conformed to the S-scheme mechanism. Benefited from the interfacial electric field (IEF) of the S-scheme heterojunction and incorporation of L-cysteine with introducing S-vacancies and surface functional groups (-NH2, -COO-), photogenerated charges generation and separation of the CTS/L-BiOBr(10) were greatly improved. With ·OH and h+ as dominant reactive species, CIP removal reached 93% using CTS/L-BiOBr(10) within 180 min of visible light irradiation, which was 3.5 times and 2.6 times of pristine Cu3SnS4 and L-BiOBr, respectively. Moreover, possible CIP degradation pathways were proposed and the degradation intermediates ecotoxicity were evaluated. This study could provide reference for designing efficient S-scheme photocatalysts for recalcitrant wastewater treatment.
Collapse
Affiliation(s)
- Zhihong Li
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Danquan Lan
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Zuji Li
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Jiangli Sun
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Shuo Chen
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Jinhang Yang
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Jingwen Wei
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Zebing Yu
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Nanning, 530004, China
| | - Shuangfei Wang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China; Guangxi Bossco Environmental Protection Technology Co, Ltd, 12 Kexin Road, Nanning, 530007, China Technology for Non-ferrous, China
| | - Yanping Hou
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Nanning, 530004, China.
| |
Collapse
|