文献类型：期刊文献

英文题名：Efficient Solar Light Harvesting CdS/Co9S8 Hollow Cubes for Z-Scheme Photocatalytic Water Splitting

作者：Qiu, Bocheng[1,2];Zhu, Qiaohong[1,2];Du, Mengmeng[1,2];Fan, Linggang[1,2];Xing, Mingyang[1,2];Zhang, Jinlong[1,2]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Inst Fine Chem, Sch Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2017

卷号：56

期号：10

起止页码：2684

外文期刊名：ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

收录：;EI(收录号：20170503319005);WOS:【SCI-EXPANDED(收录号:WOS:000395183600023)】；

基金：This work has been supported by National Nature Science Foundation of China (21577036, 21377038, 21237003, and 21677048) and the State Key Research Development Program of China (2016YFA0204200, 2013CB632403). Sponsorship by "Chenguang Program" was supported by Shanghai Education Development Foundation and Shanghai Municipal Education Commission (14CG30, 16JC1401400) and the Fundamental Research Funds for the Central Universities (22A201514021).

语种：英文

外文关键词：cadmium sulfide; cobalt sulfide; hydrogen evolution; multiple reflections; Z-scheme

摘要：Hollow structures with an efficient light harvesting and tunable interior component offer great advantages for constructing a Z-scheme system. Controlled design of hollow cobalt sulfide (Co9S8) cubes embedded with cadmium sulfide quantum dots (QDs) is described, using hollow Co(OH) 2 as the template and a one-pot hydrothermal strategy. The hollow CdS/Co9S8 cubes utilize multiple reflections of light in the cubic structure to achieve enhanced photocatalytic activity. Importantly, the photoexcited charge carriers can be effectively separated by the construction of a redox-mediator-free Z-scheme system. The hydrogen evolution rate over hollow CdS/Co9S8 is 134 and 9.1 times higher than that of pure hollow Co9S8 and CdS QDs under simulated solar light irradiation, respectively. Moreover, this is the first report describing construction of a hollow Co9S8 based Z-scheme system for photocatalytic water splitting, which gives full play to the advantages of light-harvesting and charges separation.