Issue 10, 2022

Facile synthesis of compact CdS–CuS heterostructures for optimal CO2-to-syngas photoconversion

Abstract

Herein, a facile two-step synthetic pathway was developed to construct compact CdS–CuS heterostructures for syngas production via CO2 photoreduction. The photocatalytic activity of CdS–CuS-2 was analysed with a syngas yield of ca. 8446 μmol g−1 in 3 h, which was approximately 5-fold higher than that of the pristine CdS. Furthermore, syngas with different proportions (H2/CO) was readily produced by adjusting the CdS/CuS ratio in the photocatalysts. Based on the results of physiochemical characterizations (diffuse reflectance spectroscopy, electrochemical impedance spectroscopy, photoluminescence, etc.), the improved photocatalytic performance of CdS–CuS-2 was mainly attributed to the formation of compact heterojunctions between CdS and CuS, by which the separation and transfer of photogenerated carriers (electrons and holes) were accelerated.

Graphical abstract: Facile synthesis of compact CdS–CuS heterostructures for optimal CO2-to-syngas photoconversion

Supplementary files

Article information

Article type
Research Article
Submitted
12 jan. 2022
Accepted
16 mar. 2022
First published
16 mar. 2022

Inorg. Chem. Front., 2022,9, 2150-2160

Facile synthesis of compact CdS–CuS heterostructures for optimal CO2-to-syngas photoconversion

J. Xu, X. Liu, H. Huang, Y. Xu, Z. Zhong, Y. Li, R. J. Zeng, J. Lü and R. Cao, Inorg. Chem. Front., 2022, 9, 2150 DOI: 10.1039/D2QI00097K

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