Preparation of Au/BiOBr/Graphene composite and its photocatalytic performance in phenol degradation under visible light

YU Xue; WANG Liang; FENG Li-juan; LI Chun-hu

Volume 44 Issue 8

Aug. 2016

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YU Xue, WANG Liang, FENG Li-juan, LI Chun-hu. Preparation of Au/BiOBr/Graphene composite and its photocatalytic performance in phenol degradation under visible light[J]. Journal of Fuel Chemistry and Technology, 2016, 44(8): 937-942.

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YU Xue, WANG Liang, FENG Li-juan, LI Chun-hu. Preparation of Au/BiOBr/Graphene composite and its photocatalytic performance in phenol degradation under visible light[J]. Journal of Fuel Chemistry and Technology, 2016, 44(8): 937-942.

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Preparation of Au/BiOBr/Graphene composite and its photocatalytic performance in phenol degradation under visible light

College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China

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Corresponding author: Tel: 0532-66782502, E-mail: wangliang_good@163.com; lichunhu@ouc.edu.cn
Received Date: 2016-04-12
Rev Recd Date: 2016-06-22

Available Online: 2021-01-23

Publish Date: 2016-08-10

Abstract

Abstract

BiOBr, BiOBr/Graphene and Au/BiOBr/Graphene composites were prepared by hydrothermal synthesis and dopamine in-situ reduction method; their morphology, composition, phase structure and optical absorption properties were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), ultraviolet-visible diffuse reflection spectroscopy (DRS) and photoluminescence (PL) emission spectroscopy. The photocatalytic performance of Au/BiOBr/Graphene in phenol degradation under visible light was investigated. The results indicate that the Au/BiOBr/Graphene composite exhibits enhanced absorption in the visible light region as well as superior photocatalytic activity in the degradation of aqueous phenol, in comparison with BiOBr and BiOBr/Graphene, owing to the enhanced quantum efficiency, narrowed band gap (2.25eV) and surface plasmon resonance of Au nano particles. Over Au/BiOBr/Graphene composite, the degradation rate of phenol reaches 64% in 180min under visible light irradiation.
- BiOBr,
- graphene,
- gold,
- phenol,
- degradation,
- photocatalysis

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References(18)

References

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