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

Luo, Yonggang, Zou, Linda and Hu, Eric 2005, A comparative study on preparation of TiO2 pellets as photocatalysts based on different precursors, Materials science forum, vol. 475, no. 479, pp. 4165-4170.

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Title A comparative study on preparation of TiO2 pellets as photocatalysts based on different precursors
Formatted title Comparative study on preparation of TiO2 pellets as photocatalysts based on different precursors
Author(s) Luo, Yonggang
Zou, Linda
Hu, Eric
Journal name Materials science forum
Volume number 475
Issue number 479
Start page 4165
End page 4170
Publisher Trans Tech Publications Ltd.
Place of publication Aedermannsdorf, Switzerland
Publication date 2005
ISSN 0255-5476
Keyword(s) titanium dioxide
pellets
surface area
sol-gel
photocatalyst
Summary 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.
Language eng
Field of Research 090703 Environmental Technologies
HERDC Research category C1 Refereed article in a scholarly journal
Persistent URL http://hdl.handle.net/10536/DRO/DU:30002985

Document type: Journal Article
Collection: School of Engineering and Technology
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