Chinese Journal of Catalysis ›› 2024, Vol. 60: 1-24.DOI: 10.1016/S1872-2067(23)64637-6

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Account of doping photocatalyst for water splitting

Wenjian Fanga,e, Jiawei Yana, Zhidong Weia,b, Junying Liuc, Weiqi Guod, Zhi Jianga, Wenfeng Shangguana,*()   

  1. aResearch Center for Combustion and Environment Technology, Shanghai Jiao Tong University, Shanghai 200240, China
    bCollege of Smart Energy, Shanghai Jiao Tong University, Shanghai 200240, China
    cBiofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
    dHuaneng Clean Energy Technology Research Institute, Beijing 102209, China
    eSchool of Electrical and Energy Power Engineering, Yangzhou University, Yangzhou 225002, Jiangsu, China
  • Received:2023-12-05 Accepted:2024-02-10 Online:2024-05-18 Published:2024-05-20
  • Contact: E-mail: shangguan@sjtu.edu.cn (W. Shangguan).
  • About author:Wenfeng Shangguan (Shanghai Jiao Tong University) received his B.S. in 1983 and M.S. in 1988 from Wuhan University of Technology, and Ph.D degree in 1996 from Nagasaki University, Japan. He carried out postdoctoral research at the Kyushu Institute of Industrial Technology in Japan from 1996 to 2000. Since April 2000, he has been working in the School of Mechanical and Power Engineering at Shanghai Jiao Tong University as a professor. His research interests include environment catalysis and photocatalysis, solar hydrogen production and air quality controlling. He has published more than 200 peer-reviewed papers and secured over 30 invention patents. He has published 7 books including monographs and translations. He is in the list of the Most Cited Chinese Researchers by Elsevier China from 2014 to 2023. He received the First Prize of the Shanghai Natural Science Award and the National Baosteel Excellent Teachers Award. He is involved in various academic roles, serving as a Member of the Catalysis Committee of the Chinese Chemical Society and holding Editorial Board positions at journals such as the Journal of Environmental Science and Frontiers in Energy.
  • Supported by:
    National Key Basic Research and Development Program(2018YFB1502001);National Natural Science Foundation of China(21773153);National Natural Science Foundation of China(22102095);Basic Science (Natural science) research project of higher education in Jiangsu Province(23KJB480011);Centre of Hydrogen Science of Shanghai Jiao Tong University, China

Abstract:

In the field of photocatalytic water splitting, the strategy of doping photocatalysts has emerged as a significant and extensively studied approach. Doping can effectively facilitate the modification of both the microstructure and energy band structure of the photocatalyst, addressing key performance limitations such as light absorption, position of the conduction and valence band minima (CBM and VBM), photogenerated carrier separation, and surface chemical reactions. In recent years, we have reported several works about the doping of rare earth elements into bismuth-based composite oxides. These endeavors are aimed at enhancing the conduction band minimum and achieving overall water splitting under visible light. Based on these bismuth-based composite oxides, we studied the effects of doping on the microstructures of photocatalysts, including exposed surfaces, surface properties, and defects. Recently, we introduce an innovative asymmetric doping technique—Selected Local Gradient Doping, intricately placing doped ions within nanocapsules. This approach allows for the gradual, controlled, and localized release of doped ions to the primary photocatalyst. Therefore, this account is to review our related research in the field of doping for photocatalytic water splitting. The primary focus on doping bismuth-based composite oxides and Asymmetry doping would significantly make contribution to the exploration of novel materials for photocatalytic water splitting under visible light and the enhancement of energy conversion efficiency.

Key words: Photocatalysis, Water splitting, Hydrogen, Doping, Energy band structure, Asymmetric doping