Photo-catalytic properties of TiO2 supported layered compounds for dye removal

Photo-catalytic properties of TiO2 supported layered compounds for dye removal TiO2-supported K2Ti6O13 with different loadings was prepared by impregnation of KOH on TiO2 surface and calcination at 1073 K. UV-DRS results revealed that the band gap of K2Ti6O13 layered compound (LC) was larger than that of TiO2. Photo-catalysis results revealed that the decomposition of dye occurred on the surface of LC. Although increasing LC loadings in supported layered compounds (SLC) enhanced the efficiency of dye photo-decomposition, the specific activity of LC decreased with increase of LC loadings in SLC, which was tentatively ascribed to the decreased effect of electron-transfer between LC and TiO2 and/or the aggregation of LC on the surface of TiO2. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Photo-catalytic properties of TiO2 supported layered compounds for dye removal

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Publisher
Springer Journals
Copyright
Copyright © 2005 by VSP
Subject
Chemistry; Inorganic Chemistry; Physical Chemistry; Catalysis
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/1568567053956536
Publisher site
See Article on Publisher Site

Abstract

TiO2-supported K2Ti6O13 with different loadings was prepared by impregnation of KOH on TiO2 surface and calcination at 1073 K. UV-DRS results revealed that the band gap of K2Ti6O13 layered compound (LC) was larger than that of TiO2. Photo-catalysis results revealed that the decomposition of dye occurred on the surface of LC. Although increasing LC loadings in supported layered compounds (SLC) enhanced the efficiency of dye photo-decomposition, the specific activity of LC decreased with increase of LC loadings in SLC, which was tentatively ascribed to the decreased effect of electron-transfer between LC and TiO2 and/or the aggregation of LC on the surface of TiO2.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jun 1, 2005

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