由锌铟硫纳米带锚定的分级氧化铈空心球诱导的S型光催化用于增强析氢
S-scheme photocatalysis induced by ZnInS nanoribbons-anchored hierarchical CeO hollow spheres for boosted hydrogen evolution.
作者信息
Zhu Chengzhang, He Qiuying, Wang Weikang, Du Feng, Yang Fu, Chen Chuanxiang, Wang Chaohai, Wang Shaobin, Duan Xiaoguang
机构信息
School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China.
Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215011, China.
出版信息
J Colloid Interface Sci. 2022 Aug 15;620:253-262. doi: 10.1016/j.jcis.2022.04.024. Epub 2022 Apr 9.
Developing S-scheme systems with impressive photocatalytic performance is of huge meaning in realizing the long-term conversion of solar energy into hydrogen. Herein, ZnInS nanoribbons were integrated with hierarchical CeO hollow spheres to construct heterostructure using an oil bath approach under mild conditions. The optimized CeO/ZnInS presented a superior photocatalytic hydrogen production rate of 69 μmol/h, which is about 4.9 and 11.5 times greater than pristine ZnInS and CeO, respectively. In addition, its apparent quantum yield achieved 7.6% at 420 nm. The improved photoactivity of the CeO/ZnInS heterojunction can be referable to the cooperative effects of the aligned bandgap structures, strong visible-light-harvesting capacity, and interfacial interactions via the internal electric field. This study provides insights into the protocols for rational design of S-scheme heterojunction catalysts for high-efficiency hydrogen evolution via sustainable photocatalytic water splitting.
开发具有出色光催化性能的S型体系对于实现太阳能长期转化为氢能具有重大意义。在此，通过油浴法在温和条件下将ZnInS纳米带与分级CeO空心球整合以构建异质结构。优化后的CeO/ZnInS呈现出69 μmol/h的优异光催化产氢速率，分别约为原始ZnInS和CeO的4.9倍和11.5倍。此外，其在420 nm处的表观量子产率达到7.6%。CeO/ZnInS异质结光活性的提高可归因于对齐的带隙结构、强大的可见光捕获能力以及通过内部电场的界面相互作用的协同效应。本研究为通过可持续光催化水分解高效析氢的S型异质结催化剂的合理设计方案提供了见解。
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