BiOBr nanosheets coupling with biomass carbon derived from locust leaves for enhanced photocatalytic degradation of rhodamine B

doi:10.1016/j.cjche.2024.07.004

中国化学工程学报 ›› 2024, Vol. 74 ›› Issue (10): 31-43.DOI: 10.1016/j.cjche.2024.07.004

• Full Length Article • 上一篇下一篇

BiOBr nanosheets coupling with biomass carbon derived from locust leaves for enhanced photocatalytic degradation of rhodamine B

Hongtao Wang¹, Xiangrui Fan¹, Mingming Yan³, Tianyu Guo^1,2, Xingfa Li¹, Chao Chen², Yu Qi¹

1 College of Environment Science and Engineering, Taiyuan University of Technology, Jinzhong 030600, China;
2 Ministry of Environment Department, China Institute for Radiation Protection, Taiyuan 030006, China;
3 Xinzhou Branch of Petrochina Coalbed Methane Co. Ltd, Xinzhou 036600, China

收稿日期:2024-02-05 修回日期:2024-07-06 接受日期:2024-07-08 出版日期:2024-10-28 发布日期:2024-08-02
通讯作者: Chao Chen,E-mail:381450501@qq.com;Yu Qi,E-mail:allstep@163.com
基金资助:
The authors thank the National Natural Science Foundation of China (51572185), Natural Science Foundation of Shanxi Province (202203021211158 and 20210302123176), the Key Research & Development Program of Shanxi Province (Social Development, 201903D321060) and the Key Research & Development program of Shanxi Province (International Cooperation, 201903D421079) for the financial support.

BiOBr nanosheets coupling with biomass carbon derived from locust leaves for enhanced photocatalytic degradation of rhodamine B

Hongtao Wang¹, Xiangrui Fan¹, Mingming Yan³, Tianyu Guo^1,2, Xingfa Li¹, Chao Chen², Yu Qi¹

1 College of Environment Science and Engineering, Taiyuan University of Technology, Jinzhong 030600, China;
2 Ministry of Environment Department, China Institute for Radiation Protection, Taiyuan 030006, China;
3 Xinzhou Branch of Petrochina Coalbed Methane Co. Ltd, Xinzhou 036600, China

Received:2024-02-05 Revised:2024-07-06 Accepted:2024-07-08 Online:2024-10-28 Published:2024-08-02
Contact: Chao Chen,E-mail:381450501@qq.com;Yu Qi,E-mail:allstep@163.com
Supported by:
The authors thank the National Natural Science Foundation of China (51572185), Natural Science Foundation of Shanxi Province (202203021211158 and 20210302123176), the Key Research & Development Program of Shanxi Province (Social Development, 201903D321060) and the Key Research & Development program of Shanxi Province (International Cooperation, 201903D421079) for the financial support.

摘要/Abstract

摘要： A series of BiOBr@biomass carbon derived from locust leaves materials (BiOBr@BC) were fabricated and the photocatalytic property was investigated for photocatalytic degradation of rhodamine B (RhB) under visible light. The morphology, structure and photoelectrochemical properties of the photocatalysts were characterized by means of SEM, TEM, XRD, XPS, FT-IR, BET, PL, UV-vis/DRS, and EIS techniques. The results showed that the introduction of BC significantly enhanced the photocatalytic activity. When the content of biomass carbon (BC) in a composite is 3% (based on the mass of BiOBr), the obtained BiOBr@BC-3 exhibits excellent photocatalytic activity, degrading 99% of RhB within 20 min. The excellent degradation efficiency after the introduction of BC can be attributed to the enhanced visible light absorption, narrower band gap, and fast electron-hole pair separation rate. The photocatalytic mechanism on the degradation of RhB was illustrated based on the radicals' trapping experiments and semiconductor energy band position. The proposed material is expected to be of significant application value in the field of wastewater treatment.

关键词: Degradation, Rhodamine B, Adsorption, BiOBr, Renewable energy

Abstract: A series of BiOBr@biomass carbon derived from locust leaves materials (BiOBr@BC) were fabricated and the photocatalytic property was investigated for photocatalytic degradation of rhodamine B (RhB) under visible light. The morphology, structure and photoelectrochemical properties of the photocatalysts were characterized by means of SEM, TEM, XRD, XPS, FT-IR, BET, PL, UV-vis/DRS, and EIS techniques. The results showed that the introduction of BC significantly enhanced the photocatalytic activity. When the content of biomass carbon (BC) in a composite is 3% (based on the mass of BiOBr), the obtained BiOBr@BC-3 exhibits excellent photocatalytic activity, degrading 99% of RhB within 20 min. The excellent degradation efficiency after the introduction of BC can be attributed to the enhanced visible light absorption, narrower band gap, and fast electron-hole pair separation rate. The photocatalytic mechanism on the degradation of RhB was illustrated based on the radicals' trapping experiments and semiconductor energy band position. The proposed material is expected to be of significant application value in the field of wastewater treatment.

Key words: Degradation, Rhodamine B, Adsorption, BiOBr, Renewable energy

Hongtao Wang, Xiangrui Fan, Mingming Yan, Tianyu Guo, Xingfa Li, Chao Chen, Yu Qi. BiOBr nanosheets coupling with biomass carbon derived from locust leaves for enhanced photocatalytic degradation of rhodamine B[J]. 中国化学工程学报, 2024, 74(10): 31-43.

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BiOBr nanosheets coupling with biomass carbon derived from locust leaves for enhanced photocatalytic degradation of rhodamine B

BiOBr nanosheets coupling with biomass carbon derived from locust leaves for enhanced photocatalytic degradation of rhodamine B

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