期刊
SUSTAINABLE ENERGY & FUELS
卷 6, 期 21, 页码 4893-4902出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2se01142e
关键词
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资金
- National Natural Science Foundation of China [22066017]
- First Training-class High-end Talents Projects of Science and Technology Innovation in Jiangxi Province [CK202002473]
- Science and Technology Department of Jiangxi Province [20181ACG70025, 2020BABL204023]
- Key Project of Science and Technology Research of Jiangxi Provincial Department of Education [GJJ191044]
- Shanghai Summit Discipline in Design
In this study, CdS-modified ZnIn2S4 was constructed into type II heterojunctions to improve the photocatalytic performance. The CdS/ZIS heterojunction exhibited the best photocatalytic performance under visible light, with a 2.23-fold and 3.96-fold improvement compared to CdS and ZIS, respectively.
It is well known that the efficiency of electron-hole separation and visible light utilization are the main reasons affecting the photocatalytic performance. In this work, ZnIn2S4 (ZIS) was modified with CdS and constructed to form type II heterojunctions to broaden the corresponding degree of visible light. Meanwhile, the construction of heterojunctions promotes the rapid separation of electron-hole. Compared with all monomers, the photocatalytic performance of the complex was improved. When the mass fraction of CdS is 5%, CdS/ZIS heterojunction has the best photocatalytic performance under visible light (113 mu mol h(-1)), which is 2.23 and 3.96 times higher than CdS (50.5 mu mol h(-1)) and ZIS (28.5 mu mol h(-1)), respectively. Simple modification greatly improves the photocatalytic performance, which provides a new idea for the preparation of high performance ZIS-based materials.
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