Novel CoTiO3/Ag3VO4 Composite: Synthesis, Characterization and Visible-light-driven Photocatalytic Activity

被引：31
作者：
Wangkawong, Kanlayawat [1 ]
Suntalelat, Sarunya [2 ]
Tantraviwat, Doldet [2 ]
Inceesungvorn, Burapat [1 ]
机构：
[1] Chiang Mai Univ, Fac Sci, Dept Chem, Chiang Mai 50200, Thailand
[2] Natl Elect & Comp Technol Ctr NECTEC, Thai Microelect Ctr TMEC, Chachoengsao 24000, Thailand
来源：
MATERIALS LETTERS | 2014年 / 133卷
关键词：
Composite; Photocatalysis; Ag3VO4; CoTiO3; Visible light;
D O I：
10.1016/j.matlet.2014.06.158
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel CoTiO3/Ag3VO4 composite is successfully synthesized by ethylene glycol-mediated route/hydrothermal method. X-ray diffraction study suggests that the composite is formed with high purity. The presence of Ag3VO4 irregular agglomerates and CoTiO3 rods in the composite is evidenced by field emission scanning electron microscopy and energy dispersive X-ray spectroscopy. Photocatalytic degradation experiment under visible light irradiation (lambda > 400 nm) indicates that the activity of Ag3VO4 is significantly enhanced upon coupling with CoTiO3. Based on the obtained results, such enhanced photoactivity is mainly ascribed to the increased visible-light harvesting ability and the efficient separation of electron-hole pairs of the hybrid photocatalyst. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：119 / 122
页数：4
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