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Shape, size and photocatalytic activity control of TiO2 nanoparticles with surfactants

Paper ID Volume ID Publish Year Pages File Format Full-Text
28249 44066 2007 7 PDF Available
Title
Shape, size and photocatalytic activity control of TiO2 nanoparticles with surfactants
Abstract

Shape-, size- and photocatalytic activity-controlled TiO2 nanoparticles were prepared from Ti(OBu)4 and TiCl4 through the sol–gel method and studied for photocatalytic decomposition of methyl orange in fixed film batch reactors. The results showed that shape and size of TiO2 nanoparticles could be manipulated by the use of surfactants during preparation. Spherical, cubic, ellipse nanoparticles and nanorods of TiO2 were obtained with different surfactants. Shape- and size-controlled TiO2 nanoparticles showed a red shift in UV–vis light reflectance spectra, which would be beneficial for photocatalytic reactions, as compared to TiO2 nanoparticles obtained without the use of surfactants. TiO2 nanoparticles with different shapes and sizes showed different photocatalytic activities. Cubic nanoparticles prepared with the use of sodium dodecyl sulfate had a higher photocatalytic activity than other TiO2 nanoparticles.

Keywords
TiO2 nanoparticle; Sol–gel; Shape-controlled nanoparticle; Size-controlled nanoparticle; Surfactant; Photocatalytic activity
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Shape, size and photocatalytic activity control of TiO2 nanoparticles with surfactants
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 187, Issues 2–3, 15 April 2007, Pages 363–369
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