Citation: Xin ZHOU, Zhi ZHANG, Piao CHEN, Shui-Jin YANG, Yun YANG. Preparation and Photocatalytic Degradation Performance of Br-Doped Br₂WO₆ Microsphere[J]. Chinese Journal of Inorganic Chemistry, ;2022, 38(9): 1716-1728. doi: 10.11862/CJIC.2022.177 shu

Preparation and Photocatalytic Degradation Performance of Br-Doped Br₂WO₆ Microsphere

Xin ZHOU ¹ ,
Zhi ZHANG ¹ ,
Piao CHEN ¹ ,
Shui-Jin YANG ^1,, ,
Yun YANG ^2,,

1.
College of Chemistry and Chemical Engineering, Hubei Key Laboratory of Pollutant Analysis & Ruse Technology, Hubei Normal University, Huangshi, Hubei 435002, China
2.
College of Chemistry and Environmental Engineering, Hanjiang Normal University, Shiyan, Hubei 442000, China

Corresponding author: Shui-Jin YANG, yangshuijin@hbnu.edu.cn Yun YANG, yangyunhub@163.com
Received Date: 10 February 2022
Revised Date: 15 July 2022

Figures(18)

Bismuth nitrate pentahydrate and sodium tungstate dihydrate were used as raw materials, and cetyltrimethylammonium bromide (CTAB) was used as bromine source to achieve Br-doped Bi₂WO ₆. By adjusting the content of CTAB, Bi₂WO₆ catalysts with different Br doping amounts were prepared by hydrothermal method. The antibiotics ciprofloxacin and norfloxacin were used as pollutants to test the photocatalytic performance of the Br - doped Bi₂WO₆ catalyst. The results showed that the 2% (molar fraction) doped Bi₂WO₆ had the best photocatalytic degradation performance compared to pure Bi₂WO₆. In addition, through a series of tests such as X-ray powder diffraction, Fourier transform infrared spectra, scanning electron microscope, photoluminescence spectra, UV-Vis diffuse reflection spectra, Raman, and X-ray photoelectron spectra, the phase composition, micro morphology, photo-generated charge separation rate, and optical properties of the Br-doped catalyst were analyzed. The free radical capture experiments were carried out and the possible photocatalytic mechanisms were proposed.
- Bi₂WO₆,
- microspheres,
- photocatalytic properties
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Preparation and Photocatalytic Degradation Performance of Br-Doped Br₂WO₆ Microsphere