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A comparative study on preparation of TiO2 pellets as photocatalysts based on different precursors

journal contribution
posted on 2005-01-01, 00:00 authored by Y Luo, L Zou, Eric Hu
The porous Ti02 pellets were prepared based on pigment grade titaina, P25 titania powder and titaniurn(lV) butoxide. The characterization was done with X-Ray diffraction, scanning electron microscopy and BET measurements. The result shows that Ti02 pellets by using titaniurn(IV) butoxide with some addictive have the best surface porosity, with specific surface area of 196.9m2/g. For pigment grade titania and P25 titania powder, it is still effective to enhance the surface area after reassembling. The surface area increased from 11.6 to 29.2 m2/g for pigment grade titania and from 50 to 84.4 m2/g for P25 titania powder. Furthermore, it has been investigated on how to optimize and get the highest surface area by controlling the sintering temperature, reaction temperature, pH of solution, and the amount of alcohol and addictive of surfactant during preparation. The experimental photocatalytic degradation of acetone and toluene was performed using titania pellets made from P25 titania powder.

History

Journal

Materials science forum

Volume

475

Issue

479

Pagination

4165 - 4170

Publisher

Trans Tech Publications Ltd.

Location

Aedermannsdorf, Switzerland

ISSN

0255-5476

Language

eng

Publication classification

C1 Refereed article in a scholarly journal