| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Preparation and Enhanced Visible Light Photocatalytic Activity of Magnetic Flower-like SDBS/BiOBr-MB Induced by SDBS |
| HUANG Guofu1, LIU Kun2, WANG Zhongkai1, SONG Rongrong1, ZHU Ying1, TANG Rui2, ZHANG Hanbing1,2, TONG Zhangfa2
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1 College of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
2 Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China |
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Abstract To obtain multifunctional bismuth series photocatalytic materials with strong photocatalytic activity,superior magnetic stability and effective magnetic separation, Bismuth bromide oxide (BiOBr) was organically modified by sodium dodecylbenzene sulfonate (SDBS) and carried by magnetic bentonite (MB). Flower-like spherical SDBS modified MB-based supported BiOBr (SDBS/BiOBr-MB)composite photocatalyst was successfully synthesized by synthesizing some methods of load modification, semiconductors coupling and morphology control. Subsequently, the synthesized samples were characterized by a series of characterization technologies and the photocatalytic performance was investigated by Rhodamine B (RhB) under visible light irradiation. The experimental results confirmed the flower-like spherical SDBS/BiOBr-MB boosted absorption and utilization of visible light. While the effective separation of photogenerated carriers can be achieved due to Fe3O4@BiOBr heterojunction. In addition, the introduction of MB effectively reduced agglomeration of BiOBr and achieved efficiently solid-liquid separation by an external magnet. After five recycles, the SDBS/BiOBr-MB photocatalyst still exhibited high photocatalytic activity and stability for RhB (92%) under visible-light irradiation. Therefore, this study can provide valuable reference for the integrated modification of BiOBr and other visible-light photocatalysts.
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Published: 02 December 2020
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| Fund:This work was financially supported by the National Natural Science Foundation of China (21576055), Petrochemical Resources Processing and Process Reinforcement Technology Key Laboratory Project of Guangxi province (2018Z004). |
| About author:: Guofu Huangrecived his B.E. degree from Tianjin Polytechnic University in 2018. From September 2018, he learns for master degree in Guangxi University focusing on the research of photocatalysis on water purificationHanbing Zhang, an associate professor and a master's tutor of Guangxi University. She main research interests include preparation and application of photocatalytic and adsorbent materials applying on ecological restoration, migration and transformation of pollutants |
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2020, Vol. 34 
