Properties and morphology of CdS compounded TiO2 visible-light photocatalytic nanofilms coated on glass surface

被引：61

作者：

Wang, CY

Shang, HM ^{[1
]}

Ying, T

Yuan, TS

Zhang, GW

机构：

[1] Inst Light Ind, Inst Glass & New Inorgan Mat, Dalian, Peoples R China

[2] Yaohua Glass Grp Corp, Ctr Technol, Qinhuangdao, Peoples R China

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2003年 / 32卷 / 1-3期

关键词：

CdS; TiO2; films; visible-light; photocatalytic; degradation; glass surface;

D O I：

10.1016/S1383-5866(03)00058-3

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Thin-fobidden-zone US compounded TiO2 films can promote the visible light photocatalytic degeneration efficiency of photocatalytic film greatly. The compounded films are prepared by sol-gel method using spinning technology on the glass surface. Additional TiO2 layer was coated on the US compounded TiO2 film to inhibit the solubilization of cadmium. Some pore-producing agents, such as trifluoroacetic acid and polyethylene glycol, have been doped in these additional layers. The degradation efficiency under visible light of compounded films for methyl orange is investigated by spectrophotometer. The morphology of glass surface is observed through AFM. The dissolved cadmium of films is detected by atomic absorption spectrometer. As a result, the visible light photocatalytic degradation efficiency of the compounded film is far higher than that of TiO2 film. The amount of dissolved cadmium of film surface is hardly found after the second layer was coated. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：357 / 362

页数：6