A comparative study on preparation of TiO₂ pellets as photocatalysts based on different precursors
Date
2005
Authors
Luo, Y.
Zou, L.
Hu, E.
Editors
Zhong, Z.Y.
Saka, H.
Kim, T.H.
Holm, E.A.
Han, Y.F.
Xie, X.S.
Saka, H.
Kim, T.H.
Holm, E.A.
Han, Y.F.
Xie, X.S.
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Materials Science Forum, 2005; 475-479:4165-4170
Statement of Responsibility
Yonggang Luo, Linda Zou, Eric Hu
Conference Name
Abstract
The porous TiO2 pellets were prepared based on pigment grade titaina, P25 titania powder and titanium(IV) butoxide. The characterization was done with X-Ray diffraction, scanning electron microscopy and BET measurements. The result shows that TiO2 pellets by using titanium(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.