Monoclinicβ-AgVO_(3) coupled with CdS formed a 1D/1D p-n heterojunction for efficient photocatalytic hydrogen evolution

作     者：Xuan-Pu Wang Zhi-Liang Jin Xin Li Xuan-Pu Wang;Zhi-Liang Jin;Xin Li

作者机构：School of Chemistry and Chemical EngineeringNorth Minzu UniversityYinchuan750021China Institute of Biomass EngineeringKey Laboratory of Energy Plants Resource and UtilizationMinistry of Agriculture and Rural AffairsSouth China Agricultural UniversityGuangzhou510642China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2023年第42卷第5期

页      面：1494-1507页

核心收录：

学科分类：081702[工学-化学工艺] 081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 0817[工学-化学工程与技术] 08[工学] 070304[理学-物理化学(含∶化学物理)] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：financially supported by the National Natural Science Foundation of China(Nos.22062001 21975084) 

主　　题：Photocatalysis Hydrogen evolution p-n heterojunction AgVO_(3) 

摘      要：Improving the separation of photogenerated carriers and suppressing the rapid complication of electron-hole pairs are essential ways to improve photocatalytic hydrogen production *** high recombination rate of the photogenerated carriers is an issue encountered when developing CdS as a promising photocatalytic *** work allowed to accelerate the separation of photogenerated electrons and holes by loading monoclinicβ-AgVO_(3)on hexagonal CdS nanorods to construct a one-dimensional(1D)/1D p-n *** introduction of monoclinicβ-AgVO_(3)with a narrow band gap effectively improves the light absorption of CdS,which is conducive to improving the use of visible *** integrated electric field of the p-n heterojunction can effectively transfer electrons and holes in the direction suitable to hydrogen *** photoluminescence and electrochemical characterization of the catalysts showed that the p-n heterojunction formed after loadingβ-AgVO_(3)greatly improved the separation efficiency of *** hydrogen evolution experiments show that the composite catalyst has good photocatalytic hydrogen evolution capability and *** composite catalyst with the best photocatalytic performance was obtained by studyingβ-AgVO_(3)with different *** composite catalyst reached 581.5μmol of hydrogen amount within 5 h,which is 3.8 times higher than that of CdS alone and its apparent quantum efficiency reaches8.02%.The present work provides a possible solution for the development of perovskite and the extensiveness of CdS in photocatalytic hydrogen evolution.