PHOTOCATALYTIC PROPERTIES OF Cr DOPED TiO2-SiO2 NANOSTRUCTURE THIN FILM

被引：0

作者：

Eshaghi, Akbar ^{[1
]}

Eshaghi, Ameneh ^{[2
]}

机构：

[1] Maleke Ashtar Univ Technol, Fac Mat Sci & Engn, Shahinshahr, Isfahan, Iran

[2] Islamic Azad Univ, Sari Branch, Sari, Iran

来源：

CERAMICS-SILIKATY | 2012年 / 56卷 / 02期

关键词：

Sol-gel; Thin film; TiO2; doping; Photocatalysis; SUPER-HYDROPHILIC PROPERTY; TIO2; NANOPARTICLES;

D O I：

暂无

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Cr doped TiO2-SiO2 nanostructure thin film on glass substrates was prepared by a so/-gel dip coating method. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and UV-vis spectrophotometer were used to characterize the structural, chemical and optical properties of the thin film. The XRD showed that thin films contain only anatase phase. FE-SEM images illustrated that anatase average crystallite size in the pure TiO2 and Cr doped TiO2-SiO2 thin films are 15 nm and 10 nm, respectively. XPS spectra confirmed the presence of Cr3+ in the thin film. UV-vis absorption spectra indicated that absorption edge in Cr doped TiO2-SiO2 thin film shifted to the visible light region. The photocatalytic results pointed that Cr doping in TiO2-SiO2 improved decoloring rate of methyl orange in comparison to pure TiO2 thin film.

引用

页码：135 / 138

页数：4

共 21 条

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