TiO2 based films prepared by sol-gel method for advanced water treatment

被引：5

作者：

Barau, A

Crisan, M

Gartner, M

Danciu, V

Cosoveanu, V

Marian, I

Anastasescu, M

Zaharescu, M

机构：

[1] Roumanian Acad, Inst Phys Chem IG Murgelescu, Bucharest 060021, Romania

[2] Univ Babes Bolyai, Fac Chem & Chem Engn, R-3400 Cluj Napoca, Romania

来源：

FUNCTIONALLY GRADED MATERIALS VIII | 2005年 / 492-493卷

关键词：

TiO2 based films; photocatalysts; sol-gel method; ellipsometry; water treatment;

D O I：

10.4028/www.scientific.net/MSF.492-493.311

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present work, iron doped TiO2 films were prepared by sol-gel method. An extensive study by varying the dopant quantity (0, 0.7, 1.4, 5 % wt Fe2O3 related to TiO2 the type of substrate (glass or ITO coated glass) and annealing temperature (300 and 500 degrees C) was performed. The sol-gel process evolution was studied by viscosity measurements and the unsupported gels were analyzed by thermal analysis (DTA/TGA) and IR spectroscopy. The deposited films were characterized by spectroellipsometry (SE). The catalytic activity of the films was determinate by measuring the degradation rate of the salicylic acid used as a model organic substance. A complex influence of the investigated parameters on the photocatalytic properties of the TiO2 based films was established.

引用

页码：311 / 316

页数：6

共 18 条

[1] Calculation of various physics constants in heterogenous substances I Dielectricity constants and conductivity of mixed bodies from isotropic substances [J].