Synthesis and characterization of photocatalytic porous Fe3+/TiO2 layers on glass

被引：36

作者：

Smirnova, N

Eremenko, A

Rusina, O

Hopp, W

Spanhel, L

机构：

[1] Ukrainian Acad Sci, Inst Surface Chem, UA-03164 Kiev, Ukraine

[2] Fraunhofer Inst Silicatforsch, D-97082 Wurzburg, Germany

[3] Univ Wurzburg, Fak Chem & Pharm, D-97070 Wurzburg, Germany

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2001年 / 22卷 / 1-2期

关键词：

Fe3+/TiO2 films; nanocrystalline layers; solar energy materials; photocatalysis;

D O I：

10.1023/A:1011224606025

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：

Wet chemical synthesis and preliminary photocatalytical characteristics of titania and Fe(III)-containing TiO2 layers are presented. A highly stable coating colloids could be prepared under base- as well as acid-catalyzed condensation conditions. Structural properties of the as-prepared wet gels and sintered films were investigated using SEM, TEM, XRD as well as optical absorption spectroscopy, DTA-TG analysis and photomineralisation studies. X-ray amorphous wet titania gel layers start to crystallize at 500 degreesC forming the characteristic anatase phase. In the presence of iron ions (Fe/Ti = 1), nanocrystalline FeTiO3 ilmenite phase forms. Both TiO2 and Fe-containing TiO2 films demonstrate a photocatalytic activity in the process of the photomineralization of dichloroacetic acid.

引用

页码：109 / 113

页数：5

共 12 条

[1]

BAHNEMANN D, 1994, AQUATIC SURFACE PHOT

[2] IR luminescence decays and radiative lifetime of the I-4(13/2) level in Er3+ doped sol-gel TiO2 planar waveguides [J].