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Facile synthesis of novel I-doped Bi4O5Br2 nanosheets with enhanced visible light photocatalytic activity

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Abstract

I-doped Bi4O5Br2 (I-Bi4O5Br2) nanosheets have been synthesized by a facile anion exchange method at room temperature. The formed I-Bi4O5Br2 products have been characterized by means of X-ray diffraction, scanning electron microscopy, transmission electron microscopy, UV–Vis diffuse reflectance and X-ray photoelectron spectroscopy. I-Bi4O5Br2 nanosheets with good crystallinity and a band gap energy of 2.36 eV have stronger absorption in the visible-light region. Compared to pure Bi4O5Br2, I-Bi4O5Br2 photocatalysts showed better performance for methyl orange degradation under visible light irradiation, which could be ascribed to more visible light harvest and more effective separation of photo-generated carriers.

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Acknowledgements

This project was funded by the National Natural Science Foundation of China (Nos. 21767009, 51408204), and Hubei Key Laboratory of Biological Resources Protection and Utilization (PKLHB1703).

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Authors and Affiliations

  1. Hubei Key Laboratory of Biological Resources Protection and Utilization, School of Chemical and Environmental Engineering, Hubei University for Nationalities, Enshi, Hubei Province, 445000, China

    Deyong Wu, Chengyi Wu & Haiyan Tan

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  1. Deyong Wu
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  2. Chengyi Wu
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  3. Haiyan Tan
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Correspondence to Deyong Wu.

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Wu, D., Wu, C. & Tan, H. Facile synthesis of novel I-doped Bi4O5Br2 nanosheets with enhanced visible light photocatalytic activity. J Mater Sci: Mater Electron 29, 11090–11095 (2018). https://doi.org/10.1007/s10854-018-9191-0

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  • DOI: https://doi.org/10.1007/s10854-018-9191-0

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