中文标题：硫空位丰富的菱方晶相硫铟锌纳米片在可见光下高效光催化全解水
英文标题：Sulfur Vacancy-Enriched Rhombohedral ZnIn2S4 Nanosheets for Highly Efficient Photocatalytic Overall Water Splitting under Visible Light Irradiation
期刊名称及期号、页码：ACS Applied Energy Materials. 2022, 5, 10187−10195.
作者姓名（中文）：靖海童1，徐杲1，姚博，任俊，汪亚威，方泽波*，梁奇锋*，吴荣*，位顺航*
作者姓名（英文）：Haitong Jing1, Gao Xu1, Bo Yao, Jun Ren, Yawei Wang, Zebo Fang*, Qifeng Liang*, Rong Wu*，and Shunhang Wei*
摘要（英文）：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.
摘要（中文）：光催化剂的晶相和空位在调控其光催化性能中具有重要作用。在本文工作中，通过在氮气气氛下煅烧六方晶相的硫铟锌的到了硫空位丰富的菱方晶相硫铟锌。基于理论计算和光催化性能结果，我们发现晶相和硫空位的协同作用大幅提高了硫铟锌在可见光下的光催化全解水性能。菱方晶相硫铟锌中的光生电子空穴具有更小的有效质量从而促进了光生电子空穴的分离，这在光催化水分解中其到了重要的作用。更重要的是，硫空位丰富的菱方晶相硫铟锌的太阳光转化为氢能的效率达到了0.021%，是目前已有报道的单相硫铟锌中效率最高值。
创新点：该工作发现了通过在氮气气氛下煅烧六方晶相硫铟锌可以得到硫空位丰富的菱方晶相的硫铟锌，其具有优异的光催化全解水性能。对其光催化机理方面的研究发现晶相变化导致其光生电子空穴具有更小的有效质量，适量的硫空位可以进一步提高光催化性能。
全文链接：
https://pubs.acs.org/doi/10.1021/acsaem.2c01930.
