燃料化学学报2016，Vol.44Issue(8)：937-942,6.
Au/BiOBr/石墨烯复合物的制备及其苯酚降解光催化性能
Preparation of Au/BiOBr/Graphene composite and its photocatalytic performance in phenol degradation under visible light
余雪 1王亮 1冯丽娟 1李春虎1
作者信息
- 1. 中国海洋大学 化学化工学院，山东 青岛 266100
- 折叠
摘要
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. 25 eV) and surface plasmon resonance of Au nano particles. Over Au/BiOBr/Graphene composite, the degradation rate of phenol reaches 64% in 180 min under visible light irradiation.关键词
溴氧化铋/石墨烯/金/苯酚/降解/光催化Key words
BiOBr/graphene/gold/phenol/degradation/photocatalysis分类
化学工程引用本文复制引用
余雪,王亮,冯丽娟,李春虎..Au/BiOBr/石墨烯复合物的制备及其苯酚降解光催化性能[J].燃料化学学报,2016,44(8):937-942,6.
