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Nanosized Ti–V mixed oxides: Effect of doping level in the photo-catalytic degradation of toluene using sunlight-type excitation

Paper ID Volume ID Publish Year Pages File Format Full-Text
48753 46521 2007 8 PDF Available
Title
Nanosized Ti–V mixed oxides: Effect of doping level in the photo-catalytic degradation of toluene using sunlight-type excitation
Abstract

In this report we investigate the behavior of nanosized Ti–V mixed oxides with anatase structure in the photo-elimination of toluene using sunlight-type excitation. These systems were prepared by a microemulsion method and their physico-chemical properties characterized by a multitechnique approach using X-ray diffraction, electron paramagnetic resonance, Raman, and UV–vis spectroscopies. The preparation method allows the incorporation of significant amounts of vanadium in the anatase structure and two well-differentiated structural/electronic situations occur for samples having a V content below/above ca. 5 at.%. The photo-activity of the Ti–V samples reached a maximum for a sample having a vanadium content of ca. 2.5 at.%, which displays a reaction rate 2.3/2.7 times larger than the parent-TiO2/P25 references. The chemical/physical bases of such behavior are discussed in light of the characterization results.

Keywords
Photo-catalysis; Binary Ti–V mixed oxides; TiO2; Anatase; Visible and sunlight light absorption and excitation; Pollutant and toluene mineralization and degradation
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Nanosized Ti–V mixed oxides: Effect of doping level in the photo-catalytic degradation of toluene using sunlight-type excitation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 74, Issues 1–2, 18 June 2007, Pages 26–33
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us