文献类型：期刊文献

英文题名：Cu2MoS4/CdS Nanosheet-Modified Nanowire Nanocomposites for Significantly Improved Visible Light-Driven Photocatalytic H-2 Evolution Activity

作者：Zhao, Yanfei[1];Wang, Qi[1];Lu, Congrong[1];Ren, Kuankuan[1];Liu, Shiyan[1];Li, Chunhe[1];Dou, Wei-Dong[1]

机构：[1]Shaoxing Univ, Zhejiang Engn Res Ctr MEMS, Sch Math Informat, Shaoxing 312000, Peoples R China

年份：2023

外文期刊名：ENERGY & FUELS

收录：SCI-EXPANDED(收录号：WOS:001049534400001)、、WOS

基金：The authors are thankful for the support of the Natural Science Foundation of Zhejiang Province, China (grant nos. LQ21B030005, LQ22A040001), and the Postdoctoral Science Foundation of China (grant nos. 2021M692459).

语种：英文

外文关键词：Copper compounds - Heterojunctions - II-VI semiconductors - Light absorption - Molar ratio - Nanocomposites - Nanosheets - Nanowires - Optical properties - Photocatalytic activity - Photoluminescence

外文摘要：The development of photocatalysts with high charge separationefficiencyand visible-light-harvesting capacity is still a great challenge.In this work, we report a simple hydrothermal treatment to decoratethe CdS nanowires (NWs) with co-catalyst Cu2MoS4 nanosheets (NSs) for photocatalytic H-2 evolution reaction(HER). Especially when the molar ratio of Cu2MoS4 to CdS is 3%, the Cu2MoS4/CdS shows excellentvisible light-driven H-2 evolution activity (1967.83 & mu;molg(-1) h(-1)), which is 18.8 timeshigher than that of pure CdS. Structural characterizations demonstratea well-designed structure of the Cu2MoS4/CdS,in which Cu2MoS4 NSs are tightly attached ontothe CdS NWs to form a heterojunction. The optical property revealsthat the 3%-Cu2MoS4/CdS nanocomposite displayeddistinguished visible-light absorption capacity. Combined with thedata analysis of the photoluminescence spectra, photocurrents, andelectrochemical impedance spectra, it can be proved that there iseffective separation of photogenerated electron-hole pairsin 3%-Cu2MoS4/CdS nanocomposite. All these factorssynergistically boost the photocatalytic H-2 evolution performanceof the Cu2MoS4/CdS, providing a new conceptfor the rational design of highly efficient visible-light-driven sulfidephotocatalysts.