Significant enhancement of the visible photocatalytic degradation performances of γ-Bi2MoO6 nanoplate by graphene hybridization

被引:121
作者
Zhou, Feng [1 ,2 ]
Shi, Rui [2 ]
Zhu, Yongfa [2 ]
机构
[1] Dalian Maritime Univ, Dept Mat Sci & Engn, Dalian 116026, Peoples R China
[2] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
基金
中国国家自然科学基金;
关键词
Graphene; gamma-Bi2MoO6; Hybridize; Photocatalyst; Visible light irradiation; EPITAXIAL GRAPHENE; LIGHT IRRADIATION; BI2MOO6; POLLUTANTS; ADSORPTION; OXIDES; C-60;
D O I
10.1016/j.molcata.2011.03.012
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
After hybridized with graphene, the photocatalytic performances of gamma-Bi2MoO6 were increased about 2-4 times. The photocatalytic activity enhancements were dependent on the amount of graphene and it was found that the optimal hybridized amount of graphene was about 1.0 wt%, which was close to the monolayer disperse of graphene on gamma-Bi2MoO6 surface. The mechanism on the enhancement of photocatalytic activity is attributed to the higher separation efficiency of photo-induced electrons and holes, which come from the electronic interaction between gamma-Bi2MoO6 and graphene. The electronic interaction was verified by the photoelectrochemical measurements. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:77 / 82
页数:6
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