Issue 75, 2023

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

Abstract

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.

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

Supplementary files

Article information

Article type
Communication
Submitted
17 Jul 2023
Accepted
25 Aug 2023
First published
26 Aug 2023

Chem. Commun., 2023,59, 11280-11283

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

L. Bao, X. Ren, C. Liu, X. Liu, C. Dai, Y. Yang, M. Bououdina, S. Ali and C. Zeng, Chem. Commun., 2023, 59, 11280 DOI: 10.1039/D3CC03436D

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