Journal
CATALYSIS COMMUNICATIONS
Volume 31, Issue -, Pages 66-70Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2012.11.016
Keywords
Titania, Silica; Mixed oxide; Surface characterization; Photocatalysis
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The influence of Ti-O-Si hetero-linkages in the degradation of Rhodamine B (RhB) dye over TiO2-SiO2 xerogels is exemplified by XPS analysis. We demonstrate a relationship between the percentage surface content of Ti-O-Si and the rate of photocatalytic degradation of RhB. Our detailed surface investigation revealed that the overall degradation of RhB is enhanced due to the high surface percentage content of Ti-O-Si species, high crystallinity of titania phase, and its effective dispersion on a high surface area porous silica support. (C) 2012 Elsevier B.V. All rights reserved.
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