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Fabricating hollow, multishell CeO2 microspheres for enhanced photocatalytic degradation of RhB under visible light

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Abstract

A well-defined structure is greatly helpful to enhance the performance of photocatalysis. Herein, we plan to fabricate multi-shell CeO2 photocatalyst with hollow structure characters for enhanced photodegradation RhB efficiency. The SEM showed that the samples were the regular micro-spheres with a diameter of 1.5–2 μm, and the TEM image displayed these microspheres having multi-shell hollow structures with core–shell morphology. The RhB was degraded (83%) under visible light irradiation within 150 min. This multi-shell hollow CeO2 (MSH-CeO2) has a larger surface area and more oxygen vacancies (OVs), the catalytic performance is mainly improved by enhancing the light absorption properties and facilitating the separation efficiency of the electron-holes. This work introduces the effecting of morphology on the performance of the catalyst, which will provide a new idea for the construction of efficient photocatalysts.

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Acknowledgments

This project was financially supported by projects of the Open Foundation of Key Laboratory of Green Chemical Process (Wuhan Institute of Technology), Ministry of Education (GCP20200210; GCX2021122); Hubei Key Laboratory of Novel Reaction and Green Chemical Technology (Wuhan Institute of Technology), project number (40201007); and Scientific Research Foundation of Wuhan Institute of Technology (K202045); The Graduate Student Innovation Fund of Wuhan Institute of Technology (CX2020282).

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Authors and Affiliations

  1. School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430073, People’s Republic of China

    Bo-Yuan Wang, Yi-Chao Zong, Xiao-Bo Wang, Jun Yuan & Fu-Qing Zhang

  2. School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan, 430073, People’s Republic of China

    En-Di Li

  3. Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Wuhan Institute of Technology, Wuhan, 430073, People’s Republic of China

    Bo-Yuan Wang, Xiao-Bo Wang, Jun Yuan & Fu-Qing Zhang

  4. The Graduate Student Innovation Fund, Wuhan Institute of Technology, Wuhan, 430073, People’s Republic of China

    Bo-Yuan Wang & Xiao-Bo Wang

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  1. Bo-Yuan Wang
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Correspondence to Fu-Qing Zhang.

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Wang, BY., Li, ED., Zong, YC. et al. Fabricating hollow, multishell CeO2 microspheres for enhanced photocatalytic degradation of RhB under visible light. Journal of Materials Research 37, 1070–1082 (2022). https://doi.org/10.1557/s43578-022-00513-5

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