Preparation of TiO2/fly-ash cenospheres photocatalyst and its application of methylene blue degradation combining with the ultrasonic treatment

被引：8

作者：

Li, Chunxiang ^{[1
]}

Huo, Pengwei ^{[1
]}

Yan, Yongsheng ^{[1
]}

Huang, Weihong ^{[2
]}

Li, Songtian ^{[2
]}

机构：

[1] School of Chemistry and Chemical Engineering, Jiangsu University, Jiangsu

[2] School of the Environment, Jiangsu University, Jiangsu

来源：

International Journal of Materials and Structural Integrity | 2008年 / 2卷 / 04期

关键词：

Application; Combining; Floating photocatalyst; Methylene blue degradation; Photocatalytic activity; Preparation; TiO[!sub]2[!/sub]/fly-ash cenospheres; Ultrasonic treatment;

D O I：

10.1504/IJMSI.2008.022997

中图分类号：

学科分类号：

摘要：

The floating photocatalyst of TiO2/fly-ash cenospheres was prepared by sol-gel method and calcined at different temperatures (from 573K to 973K). The photocatalytic activity of TiO2/fly-ash cenospheres was investigated for photocatalytic degradation of methylene blue under ultrasonic-photocatalysis. It was found that the photocatalytic activity of TiO2/fly-ash cenospheres photocatalyst was higher when calcined at 773K than the samples calcined at other temperatures. Under the experimental conditions of 0.05g, TiO2/fly-ash cenospheres, ultrasonic and light irradiation, the photodegradation rate of 5 mg/L methylene blue can reach up to 92.09% in ten minutes and near 100% in 30 minutes. In addition, the photodegradation rate of the catalyst used second recycle can reach over 90% in 30 minutes, indicating that it still shows good degradation effect. Copyright © 2008, Inderscience Publishers.

引用

页码：375 / 382

页数：7

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