文献类型：期刊文献

英文题名：Rhodium Dopants on Zn2GeO4 Surfaces as Active Sites for Photocatalytic Water Splitting

作者：Wang, Yu Lei[1];Li, Yu Hang[1];Wang, Xue Lu[1];Chen, Ai Ping[1];Yang, Hua Gui[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2017

卷号：82

期号：2

起止页码：199

外文期刊名：CHEMPLUSCHEM

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000396929800008)】；

基金：This work was financially supported by Program of Science and Technology Commission of Shanghai Municipality (14JC1490900), Shanghai Subject Chief Scientist (15XD1501300), SRF for ROCS, SEM, National Natural Science Foundation of China (21573068), Program of Shanghai Subject Chief Scientist (15XD1501300), China Postdoctoral Science Foundation Funded Project (2016M591615), National Postdoctoral Program for Innovative Talents (BX201600050) and Fundamental Research Funds for the Central Universities (WD1313009, WD1616003 and WD1514303).

语种：英文

外文关键词：photocatalysts; stability; surface doping; water splitting

摘要：Doping has been widely used to engineer efficient photocatalysts for the water-splitting process in energy conversion and storage systems. Although composition tuning through heteroatom doping is one of the strategies to enhance photoactivity, the origin of the increased activity by doping remains unclear and most illustrations of its role fall in the band engineering area. Herein, it is reported that the rhodium dopants on the surface of Zn2GeO4, which affect the band structure negligibly, can act as active sites for water splitting. As a result, the Rh delta+/Zn2GeO4 photocatalyst demonstrates excellent stability for up to 460 days and significant enhancement of the photocatalytic activity to that of the undoped photocatalyst. The findings in this work may open the door for a rethink of the detailed principles of dopants in photocatalysis, and highlight a feasible route to fabricating efficient photocatalysts.