中文标题：具有氧掺杂和表面硫空位的硫铟锌用于可见光下光催化全解水
英文标题：ZnIn2S4 with oxygen atom doping and surface sulfur vacancies for overall water splitting under visible light irradiation
期刊名称及期号、页码：Catalysis Science & Technology., 2023, 13, 226-232.
作者姓名（中文）：靖海童1，任俊1，岳建勇，刘士彦，梁奇锋，吴荣，汪亚威，方泽波*，李惠丽*，位顺航*
作者姓名（英文）：Haitong Jing1, Jun Ren1, Jianyong Yue, Shiyan Liu, Qifeng Liang, Rong Wu, Yawei Wang, Zebo Fang*, Huili Li* and Shunhang Wei*
摘要（英文）：Previous reports have found that surface sulfur vacancies can improve the hydrogen production performance of ZnIn2S4, and oxygen atom doping can improve its water oxidation ability. However, the simultaneous introduction of these two factors to achieve photocatalytic overall water splitting under visible-light irradiation has not been reported. In this work, we introduce surface sulfur vacancies and oxygen atom doping simultaneously via calcination of the ZnIn2S4 obtained by a hydrothermal method under an air atmosphere. Their synergistic effect on the photocatalytic overall water splitting activity is investigated in detail by controlling the calcination temperature and calcination time. Both surface sulfur vacancies and oxygen atom doping can inhibit carrier recombination, and oxygen atom doping can increase the photogenerated carrier concentration. Surface sulfur vacancies and oxygen atom doping can increase the photocatalytic rate 2–3 times, respectively, confirming that the two are equally important for the improvement of photocatalytic activity. More importantly, the synergistic effect of sulfur vacancies and oxygen atom doping results in a solar-to-hydrogen (STH) efficiency of ~0.035% (the highest efficiency reported so far for single-phase ZnIn2S4) and a stable photocatalytic overall water splitting performance.
摘要（中文）：以往的研究发现，表面硫空位可以提高硫铟锌的产氢性能，而氧原子掺杂可以提高其水氧化能力。但是，同时引入这两种因素来实现可见光下光催化全解水还没有被报道。在本文工作中，我们通过在空气气氛下煅烧水热法合成得到的硫铟锌，同时将表面硫空位和氧原子掺杂引入其晶体结构中。通过控制煅烧温度和煅烧时间，详细研究了它们对光催化水分解活性的协同效应。表面硫空位和氧原子掺杂都能抑制载流子复合，并且氧原子掺杂可以增加光生载流子浓度。表面硫空位和氧原子掺杂可分别使光催化速率提高2–3倍，证实了两者对光催化活性的提高具有相同的重要性。更重要的是，硫空位和氧原子掺杂的协同效应使硫铟锌的太阳转化为氢能效率达到0.035%左右（目前报道的单相ZnIn2S4的最高效率），并使其具有稳定的光催化全解水表现。
创新点：该工作发现了通过在空气中煅烧六方晶相硫铟锌可以得到同时具有氧掺杂和硫空位的硫铟锌，并具有优异的光催化水分解性能。对其光催化机理方面的研究发现硫空位和氧原子掺杂的协同效应促进了其光生电子空穴分离和迁移，同时，氧原子掺杂可以增加光生载流子浓度。
全文链接：
https://doi.org/10.1039/d2cy01794f.
