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

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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.

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

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Article information


Submitted
22 Nov 2019
Accepted
04 Feb 2020
First published
06 Feb 2020

Inorg. Chem. Front., 2020, Advance Article
Article type
Research Article

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

Y. Zhang, Q. Shao, H. Jiang, L. Liu, M. Wu, J. Lin, J. Zhang, S. Wu, M. Dong and Z. Guo, Inorg. Chem. Front., 2020, Advance Article , DOI: 10.1039/C9QI01524H

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