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ZnO nanorods modified with noble metal-free Co3O4 nanoparticles as a photocatalyst for efficient ethylene degradation under light irradiation

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Abstract

In this study, we synthesized noble metal-free Co3O4 as a cocatalyst for a modified ZnO nanorod photocatalyst to achieve efficient ethylene degradation under light irradiation. The Co3O4-decorated ZnO nanorods demonstrate photocatalytic activity for ethylene oxidation that is better than that of pure ZnO and even better than that of the noble metal-based RuO2-modified ZnO. Furthermore, Co3O4-modified ZnO exhibits good stability in a six-cycle experiment. Measurement results indicate that the Co3O4 nanoparticles can effectively promote the transfer and inhibit the recombination of photogenerated electrons and holes during the photocatalytic reaction. Therefore, the Co3O4-modified ZnO nanorod photocatalyst displays excellent photocatalytic properties for ethylene degradation and can effectively realize the complete mineralization of ethylene molecules.

Graphical abstract: ZnO nanorods modified with noble metal-free Co3O4 nanoparticles as a photocatalyst for efficient ethylene degradation under light irradiation

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Publication details

The article was received on 28 Aug 2019, accepted on 30 Sep 2019 and first published on 01 Oct 2019


Article type: Paper
DOI: 10.1039/C9CY01732A
Catal. Sci. Technol., 2019, Advance Article

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    ZnO nanorods modified with noble metal-free Co3O4 nanoparticles as a photocatalyst for efficient ethylene degradation under light irradiation

    Z. Cui, X. Liu, X. Liang, P. Wang, Q. Zhang, Z. Wang, Z. Zheng, Y. Liu, Y. Dai and B. Huang, Catal. Sci. Technol., 2019, Advance Article , DOI: 10.1039/C9CY01732A

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