A novel visible-light-driven photocatalyst of Cu-ZnS nanosheets by a simple macrowave hydrothermal method

作     者：Li, L. Chen, J. Zhang, Y. Xu, L. Guan, J. Ao, Y. Hwang, J.-Y. Liu, J. Zhou, G. Mao, X. 

作者机构：Advanced Materials RandD Center of WISCO Beijing102211 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China 

出 版 物：《Materials Research Innovations》 (Mater. Res. Innov.)

年 卷 期：2015年第19卷第Sup8期

页      面：273-276页

核心收录：

学科分类：0820[工学-石油与天然气工程] 070207[理学-光学] 0809[工学-电子科学与技术（可授工学、理学学位）] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0803[工学-光学工程] 0702[理学-物理学] 

主　　题：Zinc sulfide 

摘      要：Sheet-like Cu-ZnS heterostructured composites were prepared by the combination of microwave hydrothermal and cation exchange methods, according to the interfacial charge transfer theory. The fabrication of the heterojunctions broadened the range of light response of ZnS. The heterostructure can be tested by HRTEM image. Through transmission electron microscopy, we can find that the size of composites is about 800 nm. The photoexcited electrons of ZnS migrated to the redox potential of CuS-Cu2S under visible-light irradiation, which can facilitate the effective separation of photogenerated electrons and holes in space. The visible photocatalytic activity towards hydrogen production for sheet-like Cu-ZnS heterostructured composites without co-catalyst achieved 028 mmol h-1, and the quantum efficiency was up to 19.8% under the wavelength with 420 nm visible-light irradiation. © W. S. Maney & Son Ltd 2015.