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Zhang B, Liu K, Xiang Y, Wang J, Lin W, Guo M, Ma G. Facet-Oriented Assembly of Mo:BiVO4 and Rh:SrTiO3 Particles: Integration of p–n Conjugated Photo-electrochemical System in a Particle Applied to Photocatalytic Overall Water Splitting. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00306] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Boyang Zhang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Kaiwei Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yao Xiang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jiaming Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Wenrui Lin
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
| | - Mei Guo
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
| | - Guijun Ma
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
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2
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Li J, Shao W, Geng M, Wan S, Ou M, Chen Y. Combined Schottky junction and doping effect in Cd xZn 1-xS@Au/BiVO 4 Z-Scheme photocatalyst with boosted carriers charge separation for CO 2 reduction by H 2O. J Colloid Interface Sci 2022; 606:1469-1476. [PMID: 34500151 DOI: 10.1016/j.jcis.2021.08.103] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 08/13/2021] [Accepted: 08/14/2021] [Indexed: 01/22/2023]
Abstract
A Z-scheme photosystems combining Schottky junction and loading of applicable bandgap semiconductor is beneficial for enhancing the charge carriers' separation/transfer as well as maintain their excellent redox ability. Here, CdxZn1-xS@Au was in-situ deposited on the (010) facets of BiVO4 taking Au as a bridge for constructing a sandwich structure CdxZn1-xS@Au/BiVO4 Z-scheme photocatalyst. The electrons in BiVO4 (010) migrate unidirectionally to Au nanoparticles across the Schottky junction and effectively suppress opposite electrons flow, then be captured by the excited holes in CdxZn1-xS. Furthermore, Zn-doping also contributes to an appropriate redox ability and charge carriers separation. Benefiting from the dual-facilitated effects, the ternary CdxZn1-xS@Au/BiVO4 exhibited superior photocatalytic activity for CO2 reduction under visible light irradiation using H2O as a reducing agent, as compared with CdS and CdS@Au/BiVO4. Furthermore, the intermediate product HCOO* fixed on the surface of CdxZn1-xS@Au/BiVO4 is identified by in-situ FT-IR, playing a key role in the conversion of CO2 to CO and then improve photocatalytic selectivity.
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Affiliation(s)
- Jinke Li
- School of Energy Science and Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, PR China
| | - Wenfan Shao
- School of Energy Science and Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, PR China
| | - Mei Geng
- School of Energy Science and Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, PR China
| | - Shipeng Wan
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 120-749, Republic of Korea
| | - Man Ou
- School of Energy Science and Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, PR China.
| | - Yuhui Chen
- School of Energy Science and Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, PR China.
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Ma M, E L, Zhao D, Xin Y, Wu X, Meng Y, Liu Z. The p-n heterojunction of BiVO4/Cu2O was decorated by plasma Ag NPs for efficient photoelectrochemical degradation of Rhodamine B. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.127834] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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4
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Wang J, Peng Z, Zhu K, Xu M, Tao T, Jia D, Jia G, Wang Y, Ye W, Wu W, Gao P. The fate of oxygen on graphene-catalyst in the photocatalytic water splitting reaction. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01286j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
This paper reveals the transformation of oxygen on graphene in the water splitting process and for the first time, points out a step by step dehydrogenation process with the intermediates OH–C and O–C, and finally CO2.
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Affiliation(s)
- Jun Wang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P. R. China
| | - Zhenbo Peng
- Zhejiang Collaborative Innovation Center for High Value Utilization of Byproducts from Ethylene Project, Ningbo Polytechnic, Ningbo, Zhejiang 315800, P. R. China
| | - Kaili Zhu
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P. R. China
| | - Mengqiu Xu
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P. R. China
| | - Ting Tao
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P. R. China
| | - Dongmei Jia
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P. R. China
| | - Gan Jia
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P. R. China
| | - Yikang Wang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P. R. China
| | - Wei Ye
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P. R. China
| | - Wenbo Wu
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P. R. China
| | - Peng Gao
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P. R. China
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