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Preparation of hollow core/shell CeO2@TiO2 with enhanced photocatalytic performance

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Abstract

In this study, hollow core/shell CeO2@TiO2 photocatalysts were prepared via precipitation-co-hydrothermal method. X-ray diffraction, transmission electron microscopy, UV−Vis diffuse reflectance spectroscopy, thermo-gravimetric–differential thermal analysis, and photoluminescence were used for the characterization of prepared photocatalysts. The synthesis variables were optimized in the photocatalytic removal of rhodamine B (rhB) as a model dye pollutants. The results showed that hollow core/shell CeO2@TiO2 exhibit a significantly enhanced photocatalytic activity in degradation of rhB under either UV or visible light irradiation. The formation of the hollow core/shell CeO2@TiO2 and the photocatalytic mechanisms under UV and visible light were also discussed.

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Acknowledgements

The authors appreciate the financial support from the Shanxi (20110321037-02) the Provincial Science, Technology plan Foundation of China; Shanxi (20100110015-2) the Provincial Science, Technology plan Foundation of China; Shanxi (2012081020) the Provincial International Technological Cooperation of China; and Taiyuan (110240) the Bureau of Science and Technology research projects Foundation of China.

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Authors and Affiliations

  1. Chemical Engineering and Environment Institute, North University of China, Taiyuan, 030051, People’s Republic of China

    Lixin Zhang, Jia Zhang, Xia Zhang & Meiling Xu

  2. College of Science, North University of China, Taiyuan, 030051, People’s Republic of China

    Hongfang Jiu

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  1. Lixin Zhang
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  2. Jia Zhang
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  3. Hongfang Jiu
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  4. Xia Zhang
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Correspondence to Lixin Zhang.

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Zhang, L., Zhang, J., Jiu, H. et al. Preparation of hollow core/shell CeO2@TiO2 with enhanced photocatalytic performance. J Mater Sci 50, 5228–5237 (2015). https://doi.org/10.1007/s10853-015-9070-5

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  • DOI: https://doi.org/10.1007/s10853-015-9070-5

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