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.
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收藏
页码：109 / 113
页数：5
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