Ionic liquid-induced strategy for FeWO4 microspheres with advanced visible light photocatalysis

被引：40
作者：
Chen, Zhigang [1 ,3 ]
Ma, Huijin [1 ]
Xia, Jiexiang [2 ]
Zeng, Jie [1 ]
Di, Jun [2 ]
Yin, Sheng [2 ]
Xu, Li [2 ]
Li, Huaming [2 ]
机构：
[1] Jiangsu Univ, Sch Environm & Safety Engn, Zhenjiang 212013, Peoples R China
[2] Jiangsu Univ, Sch Chem & Chem Engn, Zhenjiang 212013, Peoples R China
[3] Jiangsu Univ, Key Lab Modem Agr Equipment & Technol, Minist Educ, Zhenjiang 212013, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2016年 / 42卷 / 07期
关键词：
FeWO4; Photocatalyst; Ionic liquid; Visible light irradiation; ROOM-TEMPERATURE; HYDROTHERMAL SYNTHESIS; TIO2; NANOCRYSTALS; DEGRADATION; FABRICATION; TEMPLATE; NANORODS; FE;
D O I：
10.1016/j.ceramint.2016.02.117
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Novel ferrous tungstate (FeWO4) microspheres have been first synthesized via a ethylene glycol (EG)-assisted solvothermal process in the presence of reactable ionic liquid 1-octyl-3-methylimidazolium tetrachloroferrate [Omim]FeCl4. The as-prepared FeWO4 materials were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), energy-dispersive X-ray spectroscope (EDS), Transmission electron microscopy (TEM), X-ray photoelectron spectra (XPS), diffuse reflectance spectroscopy (DRS) and photocurrent. During the preparation process, [Omim]FeCl4 played important roles as reactant and template at the same time. Moreover, the photocatalytic activities of FeWO4 microspheres were evaluated on the degradation of Rhodamine B (RhB) under visible light irradiation. FeWO4 microspheres exhibited a significant improved photocatalytic performance for degradation of RhB under visible light irradiation. A possible mechanism of FeWO4 on the enhancement of visible light performance was proposed. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：8997 / 9003
页数：7
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