文献类型：期刊文献

英文题名：Metallic CuS decorated CdS nanowires for efficient photocatalytic H-2 evolution under visible-light irradiation

作者：Wan, Yuehu[1,2];Du, Shiwen[3];Lu, Congrong[1,2];Ren, Kuankuan[1,2];Shi, Biyun[1,2];Liu, Shiyan[1,2];Li, Chunhe[1,2];Dou, Weidong[1,2];Fang, Ping[1,2];Ye, Na[1,2]

机构：[1]Shaoxing Univ, Lab Low Dimens Carbon Mat, Shaoxing 312000, Peoples R China;[2]Shaoxing Univ, Dept Phys, Shaoxing 312000, Peoples R China;[3]Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China

年份：2021

卷号：871

外文期刊名：JOURNAL OF ALLOYS AND COMPOUNDS

收录：SCI-EXPANDED(收录号：WOS:000647774100002)、、WOS

基金：The authors are thankful for the support of the Natural Science Foundation of Zhejiang Province, China (Grant No. LQ21B030005 and LY19F040005) , the open project fund from the Key Laboratory of Semiconductor Materials Science (Grant No. KLSMS1904) , Institute of Semiconductors, Chinese Academy of Sciences, China.

语种：英文

外文关键词：Photocatalytic H-2 evolution; Metallic CuS; CuS NPs/CdS NWs; Schottky heterojunction; DFT calculations

外文摘要：Visible-light-driven photocatalysis holds a broad prospect for alleviating the energy crises. Here we report novel CuS nanoparticles/CdS nanowires Schottky heterojunctions via a two-step hydrothermal synthesis and used for photocatalytic H-2 generation driven by visible-light (lambda >= 420 nm). Compared with pure CdS NWs, the CuS/CdS nanocomposites show outstanding visible light H-2 evolution, with an optimal rate reaching 2076.5 mu mol h(-1) g(-1). The intrinsic properties of CuS/CdS nanocomposites, such as structure, optical properties, and combined configuration are systematically analyzed by experimental characterizations and theoretical calculations. The comprehensive results show that the Schottky junction between CuS NPs and CdS NWs accelerates photoinduced electron drift from semi-conductive CdS to metallic CuS, improving their activities of water splitting. This work offers a simple route to synthesize one-dimensional CdS-based nanocomposites for efficient visible-light driven energy conversion. (C) 2021 Elsevier B.V. All rights reserved.