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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.

SUBMITTER: Zhang Z

PROVIDER: S-EPMC10251486 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature

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

Zhang Zhe Z Kong Fanhao F Yuan Bizhen B Liao Yinnian Y Ren Xiue X Hou Yu Y

RSC advances 20230609 25

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 act ...[more]

PMID: 37304774

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