Synthesis and Characterization of Photocatalytic Porous Fe3+/TiO2 Layers on Glass |
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| Authors: | Natalie Smirnova Anna Eremenko Olga Rusina Werner Hopp Lubomir Spanhel |
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| Affiliation: | (1) Institute of Surface Chemistry, Ukrainian Academy of Sciences, 17 Gen. Naumov Str, 03164 Kiev, Ukraine;(2) Fraunhofer Institut für Silicatforschung, Neuner Platz 2, 97082 Würzburg, Germany;(3) Fakultät für Chemie und Pharmazie, Universität Würzburg, Röntgenring 11, 97070 Würzburg, Germany |
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| Abstract: | 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°C 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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| Keywords: | Fe3+/TiO2 films nanocrystalline layers solar energy materials photocatalysis |
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