Citation: 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(08): 937-942. shu

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

1.
College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China

Corresponding author: WANG Liang,
Received Date: 12 April 2016
Available Online: 22 June 2016

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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沈阳化工大学材料科学与工程学院沈阳 110142