Nanostructured WO3/SnO2 and TiO2/SnO2 Heterojunction with Enhanced Photocatalytic Performance

被引：3
|
作者：
Malik, Ritu [1 ]
Rana, Pawan S. [1 ]
Chaudhary, Vandna [2 ]
Tomer, Vijay K. [3 ]
Nehra, S. P. [2 ]
Duhan, Surender [3 ]
机构：
[1] Deenbandhu Chhotu Ram Univ Sci & Technol, Dept Phys, Mat Res Lab, Murthal Sonepat 131039, Haryana, India
[2] Deenbandhu Chhotu Ram Univ Sci & Technol, Ctr Excellence Energy & Environm Studies, Murthal Sonepat 131039, Haryana, India
[3] Deenbandhu Chhotu Ram Univ Sci & Technol, Dept Mat Sci & Nanotechnol, Murthal Sonepat 131039, Haryana, India
来源：
ENERGY AND ENVIRONMENT FOCUS | 2016年 / 5卷 / 02期
关键词：
TiO2/SnO2; WO3/SnO2; Hydrothermal; Sun Light; Photocatalyst;
D O I：
10.1166/eef.2016.1200
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In this paper, WO3/SnO2 and TiO2/SnO2 heterojunctions were synthesized by hydrothermal route for potential application in water decontamination technology. The resulting samples were characterized by XRD, FESEM, EDX, BET, PL and UV-vis spectroscopy. The WO3/SnO2 and TiO2/SnO2 heterojunctions proved to be efficient photocatalysts for the degradation of several organic dyes like Rose Bengal (RB), Methylene Orange (MO), Methylene Blue (MB), Rhodamine 123 (RhB) and Congo Red (CR) under sunlight irradiation as compared to pure SnO2, WO3 and TiO2 nanoparticles. This behavior was rationalized in terms of better charge separation and the suppression of charge recombination in the WO3/SnO2 and TiO2/SnO2 heterojunctions because of the energy difference between the conduction band edges of TiO2, WO3 and SnO2. The WO3/SnO2 and TiO2/SnO2 heterojunctions were highly stable and could be easily recycled several times opening new avenues for potential industrial applications.
引用
收藏
页码：108 / 115
页数：8
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