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Direct growth of F-doped TiO2 particulate thin films with high photocatalytic activity for environmental applications

Paper ID Volume ID Publish Year Pages File Format Full-Text
28293 44068 2008 7 PDF Available
Title
Direct growth of F-doped TiO2 particulate thin films with high photocatalytic activity for environmental applications
Abstract

Here we report on a novel and facile approach to directly grow F-doped TiO2 particulate thin films with superb visible light photoelectrical response and high photocatalytic efficiency by oxidizing titanium plates in the presence of H2O vapor assisted with NaF at relatively low temperatures. The effects of the oxidation temperature and the amount of the NaF coated on the titanium plates on the morphology and the photocatalytic properties of the formed F-doped TiO2 particulate thin films have been investigated. The formed F-doped TiO2 particulate thin films show a significant increase in the photocurrent of photoinduced splitting of water into hydrogen and oxygen compared with that of commercial P-25 TiO2, under irradiation of either UV or visible light. In addition, the photocatalytic activity of the formed F-doped TiO2 particulate thin films out perform the commercial P-25 TiO2 for the photodegradation of 4-nitrophenol under UV and visible light irradiation. The approach described in this study can be easily commercialized to fabricate F-doped TiO2 particulate thin films on a large-scale for very promising environmental applications in the photodegradation of organic pollutants and photoinduced splitting of water into hydrogen, a green energy source.

Keywords
TiO2 thin film; F-doping; Photocatalysis; Splitting of water; Wastewater treatment
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Direct growth of F-doped TiO2 particulate thin films with high photocatalytic activity for environmental applications
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 195, Issue 1, 5 March 2008, Pages 47–53
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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