Preparation of CoFe<sub>2</sub>O<sub>4</sub>/BiOI magnetic photocatalyst and its application in Cr(VI) removal

YE Hengxuan; JI Xuan; LI Zhiyan; FANG Qing; ZHANG Huiqing; HUANG Tingting; YANG Jingxia

doi:10.12299/jsues.21-0259

Volume 37 Issue 1

Mar. 2023

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Article Navigation > Journal of Shanghai University of Engineering Science > 2023 > 37(1): 12-19

YE Hengxuan, JI Xuan, LI Zhiyan, FANG Qing, ZHANG Huiqing, HUANG Tingting, YANG Jingxia. Preparation of CoFe2O4/BiOI magnetic photocatalyst and its application in Cr(VI) removal[J]. Journal of Shanghai University of Engineering Science, 2023, 37(1): 12-19. doi: 10.12299/jsues.21-0259

Citation:

YE Hengxuan, JI Xuan, LI Zhiyan, FANG Qing, ZHANG Huiqing, HUANG Tingting, YANG Jingxia. Preparation of CoFe₂O₄/BiOI magnetic photocatalyst and its application in Cr(VI) removal[J]. Journal of Shanghai University of Engineering Science, 2023, 37(1): 12-19. doi: 10.12299/jsues.21-0259

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Preparation of CoFe₂O₄/BiOI magnetic photocatalyst and its application in Cr(VI) removal

doi: 10.12299/jsues.21-0259

1.
School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
2.
Institute of Chemistry Co., Ltd. Henan Academy of Sciences, Zhengzhou 450002, China

Received Date: 2021-11-22
Publish Date: 2023-03-31

Abstract

Abstract

The heavy metal hexavalent chromium (Cr(VI)) ion in water has serious impact on human body and environment, and its concentration is one of the important indicators of water quality, which needs to be strictly controlled. CFO/BiOI nanometer magnetic photocatalyst material was synthesized with BiOI as photocatalyst and CoFe₂O₄ (CFO for short) as magnetic component of composite material, and the effect of different proportion of CFO/BiOI on the removal performance of hexavalent chromium was studied. It was found that the CFO/BiOI composite exhibited better catalytic performance than pure CFO and BiOI in the application of hexavalent chromium removal. This may be caused by the construction of heterojunction between CFO and BiOI, which accelerated the charge separation. In addition, the introduction of CFO endowed the BiOI material with magnetism, which allowed rapidly separation of the catalyst through magnetic force.
- magnetic nano-material,
- photocatalysis,
- hexavalent chromium (Cr(VI)) removal

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