Removal of As(III) by photocatalytic oxidation under BiOCl alkaline condition

化学工业与工程

Chemcial Industry and Engineering

2024, Vol. 41

Issue (3) :68-76 DOI: 10.13353/j.issn.1004.9533.20220327

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Removal of As(III) by photocatalytic oxidation under BiOCl alkaline condition

WANG Chao¹, LI Yanfang³, CIRENZHUOGA³, TAN Xin^1,3, YU Tao²

1. School of Science, Tibet University, Lhasa 850000, China;
2. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China;
3. School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China

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Abstract A series of BiOCl semiconductor photocatalysts were prepared by adjusting the hydrothermal reaction time. The crystal structure, microstructure, spectral characteristics and chemical composition of the catalysts were systematically analyzed by means of X-ray diffraction, transmission electron microscopy, UV-visible absorption spectroscopy and X-ray photoelectron spectroscopy. The photocatalytic conversion of As(III) was achieved by BiOCl material prepared in the experiment under alkaline conditions. At the same time, the removal performance of As(III) by BiOCl-8 at different pH values was studied. The results show that 0.5 g·L^-1 BiOCl-8 can completely remove 5 mg·L^-1 As(III) from the solution within 30 min of illumination at initial pH=10.

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	WANG Chao
	LI Yanfang
	CIRENZHUOGA
	TAN Xin
	YU Tao

Keywords： BiOCl； As(III)； photocatalytic

Received 2022-04-27;

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WANG Chao, LI Yanfang, CIRENZHUOGA, TAN Xin, YU Tao.Removal of As(III) by photocatalytic oxidation under BiOCl alkaline condition[J] Chemcial Industry and Engineering, 2024,V41(3): 68-76

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