One-step co-precipitation synthesis of novel BiOCl/CeO2 composites with enhanced photodegradation of rhodamine B

Yu Zhang; Qian Shao; Heyun Jiang; Lirong Liu; Mingyang Wu; Jing Lin; Jiaoxia Zhang; Shide Wu; Mengyao Dong; Zhanhu Guo

doi:10.1039/C9QI01524H

One-step co-precipitation synthesis of novel BiOCl/CeO₂ composites with enhanced photodegradation of rhodamine B†

Yu Zhang,^a Qian Shao,*^a Heyun Jiang,^a Lirong Liu,^a Mingyang Wu,^a Jing Lin,*^b Jiaoxia Zhang,^cd Shide Wu,^e Mengyao Dong^fd and Zhanhu Guo

*^d

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* Corresponding authors

^a College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
E-mail: shaoqian@sdust.edu.cn

^b School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006 China
E-mail: linjing@gzhu.edu.cn

^c School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China

^d Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996, USA
E-mail: zguo10@utk.edu

^e Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, No. 136, Science Avenue, Zhengzhou, China

^f Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, China

Abstract

Bismuth oxychloride (BiOCl) and cerium dioxide (CeO₂) composites were successfully synthesized via a facile one-step co-precipitation method. The BiOCl/CeO₂ composites were observed to be sheet-like structures with some CeO₂ nanoparticles distributed on the surface. The BiOCl/CeO₂ composites exhibited higher photodegradation performance (98.8%) of rhodamine B (RhB) than pure BiOCl (80.2%) and CeO₂ (9.6%) under solar simulated irradiation. The BiOCl/CeO₂ composites with a Bi/Ce molar ratio of 4 : 1 exhibited the highest photocatalytic performance for RhB, and an optimal RhB degradation efficiency of 98.8% was achieved under solar simulated irradiation for 60 min. The photocatalytic performance results were compared with other BiOCl composites. The photocatalytic mechanisms of BiOCl/CeO₂ composites were discussed by radical trapping experiments and electron spin resonance (ESR), which indicated that h⁺ and ˙O₂⁻ were the dominant radicals for RhB degradation.

Inorganic Chemistry Frontiers

One-step co-precipitation synthesis of novel BiOCl/CeO₂ composites with enhanced photodegradation of rhodamine B†

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One-step co-precipitation synthesis of novel BiOCl/CeO₂ composites with enhanced photodegradation of rhodamine B

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Inorganic Chemistry Frontiers