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Influence of Ti–O–Si hetero-linkages in the photocatalytic degradation of Rhodamine B

Paper ID Volume ID Publish Year Pages File Format Full-Text
50465 46795 2013 5 PDF Available
Title
Influence of Ti–O–Si hetero-linkages in the photocatalytic degradation of Rhodamine B
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.

Keywords
Titania, Silica; Mixed oxide; Surface characterization; Photocatalysis
First Page Preview
Influence of Ti–O–Si hetero-linkages in the photocatalytic degradation of Rhodamine B
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 31, 10 January 2013, Pages 66–70
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis