Photocatalytic degradation of textile dye X-3B using TiW11Ti/SiO2 hybrid materials

被引：11
作者：
Ai, Limei [1 ]
Zhang, Danfeng [1 ]
Wang, Qiang [1 ]
Yan, Jingsen [1 ]
Wu, Qingyin [1 ,2 ]
机构：
[1] Liaoning Inst Sci & Technol, Sch Biomed & Chem Engn, Benxi 117004, Liaoning, Peoples R China
[2] Zhejiang Univ, Dept Chem, Hangzhou 310027, Zhejiang, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2019年 / 126卷
关键词：
Composite materials; Heteropoly acid; Polyoxometalate; Sol-gel method; Photocatalytic degradation; HETEROPOLY ACID; POLYOXOMETALATE; PERFORMANCE; COMPOSITE; CONDUCTIVITY; CATALYST; SILICA; SALT; GEL;
D O I：
10.1016/j.catcom.2019.04.007
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：
Various photocatalysts composed of undecatungstotitanotitanic heteropoly acid (H-4[Ti(H2O)TiW11O39]center dot 7H(2)O) loaded on silica (TiW11Ti/SiO2) were prepared by sol-gel method. The TiW11Ti/SiO2 hybrid materials were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and Diffuse reflectance spectra (DRS). The photocatalytic performance was investigated by photocatalytic degradation of brilliant dye X-3B under ultraviolet light irradiation. The TiW11Ti/SiO2 hybrid showed higher photocatalytic activity than pure TiW11Ti and TiW11Ti + SiO2 (TiW11Ti mixed simply with SiO2). Among three different loading weights of TiW11Ti for the hybrids, the degradation efficiencies of dye X-3B displayed the following order: 45 wt% > 30 wt% > 60 wt%.
引用
收藏
页码：10 / 14
页数：5
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