Photocatalytic degradation of CI Acid Orange 52 in the presence of Zn-doped TiO2 prepared by a stearic acid gel method

被引：78

作者：

Chen, Cheng

Wang, Zhuyi

Ruan, Shengping

Zou, Bo

Zhao, Meng

Wu, Fengqing ^{[1
]}

机构：

[1] Jilin Univ, Dept Chem, Changchun 130023, Peoples R China

[2] Jilin Univ, Coll Elect Sci & Engn, Changchun 130023, Peoples R China

来源：

DYES AND PIGMENTS | 2008年 / 77卷 / 01期

基金：

中国国家自然科学基金;

关键词：

TiO2; Zn-doped; stearic acid gel method; photocatalysis; degradation; methyl orange;

D O I：

10.1016/j.dyepig.2007.05.003

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Zn-doped TiO2 nanocrystals were prepared using a stearic acid gel method and were characterized by X-ray powder diffraction, scanning electron microscopy (SEM), Brunauer-Einmett-Teller (BET) surface area and UV-vis diffuse reflectance spectroscopy. When the nanocrystals were used for the photodegradation of methyl orange in water under UV irradiation, it was found that the 0.1 at% Zn-doped TiO2 nanocrystalline catalyst exhibited greater photodegradation than TiO2 nanocrystals which had been prepared using a sol-gel method as well as the international reference material, P25 titania. This was rationalized in terms of the role of the Zn dopant in the TiO2 nanocrystals and BET surface area. Liquid chromatography/mass spectrometry (LC/MS) analysis confirmed that the dye was completely degraded after 30 min using the 0.1% Zn-doped TiO2 nanocrystals. (c) 2007 Published by Elsevier Ltd.

引用

页码：204 / 209

页数：6

共 32 条

[1]

AKHTAR MK, 1994, NANOSTRUCT MATER, V4, P537, DOI 10.1016/0965-9773(94)90061-2

[2] Advanced chemical oxidation of reactive dyes in simulated dyehouse effluents by ferrioxalate-Fenton/UV-A and TiO2/UV-A processes [J].