Photodegradation and Mineralization of Acetic Acid by Titanium Dioxide Films

被引：0

作者：

Quan, Yulian ^{[1
]}

机构：

[1] Environm Management Coll China, Dept Environm Engn, Qinhuangdao 066102, Peoples R China

来源：

PROCEEDINGS OF THE 2015 2ND INTERNATIONAL CONFERENCE ON MACHINERY, MATERIALS ENGINEERING, CHEMICAL ENGINEERING AND BIOTECHNOLOGY (MMECEB) | 2016年 / 49卷

关键词：

TiO2/ITO film; Acetic Acid; Photocatalytic degradation; Mineralization;

D O I：

暂无

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

ITO (indium-tin oxide) conductive glass plates were used as a support of Titanium dioxide films. TiO2/ITO films were prepared by sol-gel and dip-coating method with cheap inorganic salt TiCl4 as a precursor. The photocatalytic activity was evaluated by the photocatalytic decomposition of acetic acid in aqueous solution. Results showed that the photocatalytic activity of TiO2/ITO films was 20% higher than that of TiO2 nanopowders for the degradation of acetic acid. The removal rate of acetic acid (25 mg/L) was about 80% after 6h irradiation, while TiO2/ITO film calcined at 500 degrees C for 1h with 4-coating times was used as photocatalyst. Furthermore, 74% of the total organic carbon was eliminated after 6h irradiation. It was founded that when the initial concentration of acetic acid was smaller than 40mg/L, the photodegradation of acetic acid accorded with first-order kinetic pattern.

引用

页码：613 / 616

页数：4

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