Floating photocatalysts of fly-ash cenospheres supported AgCl/TiO2 films with enhanced Rhodamine B photodecomposition activity

被引：89

作者：

Huo, Pengwei ^{[1
,2
]}

Yan, Yongsheng ^{[1
]}

Li, Songtian ^{[2
]}

Li, Huaming ^{[1
]}

Huang, Weihong ^{[2
]}

机构：

[1] Jiangsu Univ, Sch Chem & Chem Engn, Zhenjiang 212013, Jiangsu, Peoples R China

[2] Jiangsu Univ, Sch Environm, Zhenjiang 212013, Jiangsu, Peoples R China

来源：

DESALINATION | 2010年 / 256卷 / 1-3期

关键词：

Photocatalysis; Floating; Silver chloride; TiO2/fly-ash cenospheres; Rhodamine B; DEGRADATION;

D O I：

10.1016/j.desal.2010.01.012

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Floating fly-ash cenospheres supported AgCl/TiO2 films photocatalysts were prepared by a simple sol-gel method. The catalysts were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), thermo gravimetric analysis-differential scanning calorimeter (TG-DSC), and UV-vis diffuse reflection spectrum (UV-vis DRS). The results show that the fly-ash cenospheres are coated with about 2 mu m thickness of AgCl/TiO2 nano-composite films. The fly-ash cenospheres loaded the films of AgCl/TiO2 photocatalysts exhibit high visible-light-induced photocatalytic activity for the decomposition of Rhodamine B waste water. When the photocatalyst contained the dosage of 0.21 g AgCl, the photo-degradation rate could reach 94.96% in 180 min under visible light irradiation, and removal rate of TOC could reach 20.34% in the same condition. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：196 / 200

页数：5

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