4.7 Article

Modulating the doping state of transition metal ions in ZnS for enhanced photocatalytic activity

期刊

CHEMICAL COMMUNICATIONS
卷 59, 期 75, 页码 11280-11283

出版社

ROYAL SOC CHEMISTRY
DOI: 10.1039/d3cc03436d

关键词

-

向作者/读者索取更多资源

Transition metal ion surface doping greatly enhances the activity of ZnS catalysts for H2 evolution and CO2 reduction, with the doping state playing a crucial role in affecting their photo-absorption and reaction kinetics. This research provides insights for the future design and fabrication of high-performance photocatalysts.
Transition metal ions (M = Ag+, Cu2+, Co2+, and Cr3+) are surface or homogeneously doped into ZnS via facile cation-exchange reaction, and while Ag+ and Cu2+ doping does not induce sulphur vacancies (Vs) or zinc vacancies (VZn), Co2+ and Cr3+ doping induces Vs. The surface doped catalysts exhibit greatly higher activity than the ZnS and homogenous doped catalysts for H2 evolution and CO2 reduction. The important role of the doping state on affecting the photo-absorption, carrier separation efficiency, and photoreaction kinetics has been systemically investigated and proposed. This work sheds light on the future design and fabrication of high-performance photocatalysts by element doping. The transition metal ion surface doped ZnS catalysts exhibit greatly higher activity than homogeneous doped catalysts. The role of doping states in activity enhancement has been systemically investigated.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据