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Preparation and visible-light photocatalytic activity of Bi$^{5+}$ doped Bi$_2$WO$_6$ nanoflowers
CHUNHUI DU XIAOXIN MA HONGDAN XUE FULI WANG HAIJUN YANG LIGANG ZHANG LIHONG MA LIYUN JIA KE WANG
Volume 45 Published: 25 May 2022 Article ID 0095
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Keywords
Nanoflowers ;photocatalytic activity ;dope. -
Abstract
Bi$^{5+}$ doped Bi$_2$WO$_6$ 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 Bi$^{5+}$ doping on the photocatalytic activity of Bi$_2$WO$_6$ nanoflowers were investigated. The results showed that Bi$^{5+}$ doping reduces the bandgap of Bi$_2$WO$_6$ nanoflowers, and improves the absorption ability of Bi$_2$WO$_6$ nanoflowers in the visible-light region remarkably. The photocatalytic activity of Bi$^{5+}$ doped Bi$_2$WO$_6$ nanoflowers was promoted significantly, and the degradation efficiency of RhB can reach 96% in 60 min under visible-light irradiation.
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Author Affiliations
CHUNHUI DU XIAOXIN MA HONGDAN XUE FULI WANG HAIJUN YANG LIGANG ZHANG LIHONG MA LIYUN JIA KE WANG1
- Department of Mathematics and Physics, Hebei University of Architecture, Zhangjiakou 075000, China
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Dates
- Published
- 25 May 2022
- Manuscript received
- 10 October 2021
- Accepted
- 17 January 2022
- Final version published online
- 25 May 2022
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Bulletin of Materials Science
Volume 46, 2023
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