Enhanced photocatalytic activity by the tunnel effect of microstructured InVO4/WO3 heterojunctions

被引：5
|
作者：
Zhang, Fengjun [1 ]
Zhao, Wei [2 ]
Zhang, Kan [1 ]
机构：
[1] Anhui Univ Architecture, Anhui Key Lab Adv Bldg Mat, Hefei 230022, Anhui, Peoples R China
[2] Hanseo Univ, Inst Proc & Applicat Inorgan Mat PAIM, Dept Mat Sci & Engn, Seosan 356706, Chungnam, South Korea
来源：
REACTION KINETICS MECHANISMS AND CATALYSIS | 2013年 / 108卷 / 01期
关键词：
Heterojunction; Charge transfer; Tunnel effect; Interface; TIO2 NANOTUBE ARRAYS; GRAPHENE; WO3;
D O I：
10.1007/s11144-012-0490-9
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：
Microstructured InVO4/WO3 heterojunctions were fabricated by a facile hydrothermal method and investigated in the photocatalytic degradation of rhodamine B (Rh.B) under simulated solar light. Embedding InVO4 into microhollow WO3 demonstrated efficient charge separation at the interface in essence. An interesting synergetic effect between InVO4 and WO3 led to an improved photocatalytic performance. However, the dropping of photoelectrochemical properties was tentatively deduced in the mechanism of charge recombination between electrons generated from WO3 and holes from InVO4. The tunnel effect has promoted the formation of electron/hole pairs with high redox potentials. However, it reduced the number of electrons to some extent.
引用
收藏
页码：253 / 261
页数：9
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