文献类型：期刊文献

英文题名：Local coulomb attraction for enhanced H2 evolution stability of metal sulfide photocatalysts

作者：Zhao, Jun Jie[1];Li, Yu Hang[1];Liu, Peng Fei[1];Wang, Yu Lei[1];Du, Xu Lei[1];Wang, Xue Lu[1];Zeng, Hui Dan[3];Zheng, Li Rong[2];Yang, Hua Gui[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China;[3]East China Univ Sci & Technol, Sch Mat Sci & Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2018

卷号：221

起止页码：152

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY

收录：;EI(收录号：20173804176409);WOS:【SCI-EXPANDED(收录号:WOS:000414109700016)】；

基金：This work was financially supported by National Natural Science Foundation of China (21573068 and 21603073), Program of Shanghai Subject Chief Scientist (15XD1501300), Fundamental Research Funds for the Central Universities (222201514303 and 222201714001), China Postdoctoral Science Foundation Funded Project (2016M591615 and 2016M601523), National Postdoctoral Program for Innovative Talents (BX201600050), Shanghai Sailing Program (17YF1402900) and "Chen Guang" project supported by Shanghai Municipal Education Commission and Shanghai Education Development Foundation (16CG31). The authors also thank the crew of 1W1B beamline of Beijing Synchrotron Radiation Facility for the constructive assistance in the XAFS measurements and data analyses.

语种：英文

外文关键词：Hydrogen evolution; Local coulomb attraction; Metal sulfides; Photocatalytic stability

摘要：Cadmiun sulfide (CdS) is considered as a promising semiconductor photocatalyst for its outstanding light absorbance and photoinduced charge separation, but it suffers from severe photocorrosion, mainly due to the sluggish kinetics of holes transfer. In this work, we introduce the strong local Coulomb attraction, which is demonstrated via the in situ K-edge X-ray absorption near edge (XANES) analysis, to accelerate the migration of holes for long-term photocatalytic activity. As a proof-of-concept sample, the hole-attraction Fe2O3/CdS nanorods evidence an outstanding stability of at least 6 days without obvious deactivation, and feature with an excellent H-2 evolution rate of 20.7 mmol g(-1) h(-1). Moreover, this Coulomb attraction strategy can be leveraged to enhance the photocatalytic performance of Zn0.5Cd0.5S, indicating the wide application of the strategy.