文献类型：期刊文献

英文题名：Sulfur Vacancy-Enriched Rhombohedral ZnIn2S4Nanosheets for Highly Efficient Photocatalytic Overall Water Splitting under Visible Light Irradiation

作者：Jing, Haitong[1,2]; Xu, Gao[2]; Yao, Bo[2,3]; Ren, Jun[2]; Wang, Yawei[4]; Fang, Zebo[2,3]; Liang, Qifeng[2]; Wu, Rong[1]; Wei, Shunhang[2,3,5]

机构：[1] School of Physics Science and Technology, Xinjiang University, Urumqi, 830000, China; [2] Department of Physics, Shaoxing University, Shaoxing, 312000, China; [3] Zhejiang Engineering Research Center of MEMS, Shaoxing University, Shaoxing, 312000, China; [4] School of Chemistry and Chemical Engineering, Jiujiang University, Jiujiang, 332005, China; [5] College of Physics, Sichuan University, Chengdu, 610064, China

年份：2022

卷号：5

期号：8

起止页码：10187

外文期刊名：ACS Applied Energy Materials

收录：EI(收录号：20223412621046)、Scopus(收录号：2-s2.0-85136285430)

语种：英文

外文关键词：Crystals - Efficiency - Indium compounds - Irradiation - Light - Photocatalytic activity - Solar power generation - Sulfur - Sulfur compounds

外文摘要：Crystal phase and vacancies play an important role in regulating photocatalytic activity. In this work, sulfur vacancy-enriched rhombohedral ZnIn2S4 was obtained by calcining hexagonal ZnIn2S4 with poor sulfur vacancies under a nitrogen atmosphere. Based on the results of theoretical calculations and photocatalytic performance, it was found that the synergy of crystal phase and sulfur vacancies resulted in highly efficient photocatalytic overall water splitting under visible light irradiation. The lighter average effective mass of photogenerated electrons and holes in the rhombohedral ZnIn2S4 accelerates the separation of photogenerated carriers, which plays a major role in achieving overall water splitting activity. An appropriate amount of sulfur vacancies can further improve the overall water splitting performance, which plays a supplementary role. More importantly, the solar-to-hydrogen conversion efficiency of sulfur vacancy-enriched rhombohedral ZnIn2S4 reaches 0.021%, which is the highest reported efficiency for single-phase ZnIn2S4. ? 2022 American Chemical Society.