fulltext.study @t Gmail

A fine route to tune the photocatalytic activity of TiO2

Paper ID Volume ID Publish Year Pages File Format Full-Text
49023 46541 2006 10 PDF Available
Title
A fine route to tune the photocatalytic activity of TiO2
Abstract

Different nanocrystalline photoactive TiO2 catalysts were prepared by the hydrolysis of titanyl sulphate (TiOSO4). Some important parameters in the preparation procedure, such as pH, calcination temperature, hydrolysing agent and temperature and ageing time were varied, leading to TiO2 with very different physical properties, i.e. crystalline phase composition, crystallite size, surface area, light absorption properties and bandgap energy. The photocatalytic activity of the TiO2 catalysts was evaluated using the photooxidation of dichloroacetic acid (DCA) as probe reaction. The experimental results revealed that the photocatalytic activity of the samples was greatly affected by their physical properties and therefore by the experimental conditions employed in their preparation. Using the optimum preparation parameters, TiO2 with an activity notably higher than the commercial TiO2 Degussa P-25 was obtained. Photoelectrochemical properties of both materials were studied for the hypothesis of enhanced activity.

Keywords
Titanium dioxide; Titanyl sulphate; Photocatalysis; Flatband potential; DCA
First Page Preview
A fine route to tune the photocatalytic activity of TiO2
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
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 63, Issues 1–2, 22 March 2006, Pages 31–40
Authors
, , , , , ,
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