Article ID Journal Published Year Pages File Type
50465 Catalysis Communications 2013 5 Pages PDF
Abstract

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.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Titania–silica xerogels prepared at room temperature. ► X-ray photoelectron spectroscopic studies indicate evidence for Ti–O–Si linkages. ► Degradation of Rhodamine B found to be dependent on Ti–O–Si linkages.

Related Topics
Physical Sciences and Engineering Chemical Engineering Catalysis
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