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Preparation and visible-light photocatalytic activity of Bi5+ doped Bi2WO6 nanoflowers

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Abstract

Bi5+ doped Bi2WO6 nanoflowers were prepared for the first time by hydrothermal method using sodium bismuth and sodium tungstate as raw materials. The crystal structure, micromorphology, optical absorption and photoelectrochemical properties of the materials were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, UV–vis spectrum, photocurrent response and electrochemical impedance spectroscopy plots. Using the degradation of Rhodamine B (RhB) under visible light as the reaction model, the effects of Bi5+ doping on the photocatalytic activity of Bi2WO6 nanoflowers were investigated. The results showed that Bi5+ doping reduces the bandgap of Bi2WO6 nanoflowers, and improves the absorption ability of Bi2WO6 nanoflowers in the visible-light region remarkably. The photocatalytic activity of Bi5+ doped Bi2WO6 nanoflowers was promoted significantly, and the degradation efficiency of RhB can reach 96% in 60 min under visible-light irradiation.

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Acknowledgements

This study was financially supported by the Science and Technology Support Program of Hebei Province (No.15211414), Science and Technology Project of Hebei Education Department (No. ZD2021040) and Functional Materials and Structural Mechanics Innovation Team of Hebei University of Architecture (No. TD202011).

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Authors and Affiliations

  1. Department of Mathematics and Physics, Hebei University of Architecture, Zhangjiakou, 075000, China

    CHUNHUI DU, XIAOXIN MA, HONGDAN XUE, FULI WANG, HAIJUN YANG, LIGANG ZHANG, LIHONG MA, LIYUN JIA & KE WANG

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  1. CHUNHUI DU
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  2. XIAOXIN MA
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  3. HONGDAN XUE
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  4. FULI WANG
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  7. LIHONG MA
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DU, C., MA, X., XUE, H. et al. Preparation and visible-light photocatalytic activity of Bi5+ doped Bi2WO6 nanoflowers. Bull Mater Sci 45, 95 (2022). https://doi.org/10.1007/s12034-022-02678-5

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