Issue 25, 2023

CdO decorated CdS nanorod for enhanced photocatalytic reduction of CO2 to CO

Abstract

Solar-driven CO2 reduction into fuels and sustainable energy has attracted increasing attention around the world. However, the photoreduction efficiency remains low due to the low efficiency of separation of electron–hole pairs and high thermal stability of CO2. In this work, we prepared a CdO decorated CdS nanorod for visible light driven CO2 reduction. The introduction of CdO facilitates the photoinduced charge carrier separation and transfer and acts as an active site for adsorption and activation of CO2 molecules. Compared with pristine CdS, CdO/CdS exhibits a nearly 5-fold higher CO generation rate (1.26 mmol g−1 h−1). In situ FT-IR experiments indicated that CO2 reduction on CdO/CdS may follow a COOH* pathway. This study reports the pivotal effect of CdO on photogenerated carrier transfer in photocatalysis and on CO2 adsorption, which provides a facile way to enhance photocatalytic efficiency.

Graphical abstract: CdO decorated CdS nanorod for enhanced photocatalytic reduction of CO2 to CO

Supplementary files

Article information

Article type
Paper
Submitted
25 Apr 2023
Accepted
31 May 2023
First published
09 Jun 2023
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2023,13, 17362-17369

CdO decorated CdS nanorod for enhanced photocatalytic reduction of CO2 to CO

Z. Zhang, F. Kong, B. Yuan, Y. Liao, X. Ren and Y. Hou, RSC Adv., 2023, 13, 17362 DOI: 10.1039/D3RA02739B

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