Effect of humidity treatment on the structure and photocatalytic properties of titania mesoporous powder

Samie, L., Beitollahi, A., Faal-Nazari, N., Nejad, M. M. Akbar and Vinu, A. (2011) Effect of humidity treatment on the structure and photocatalytic properties of titania mesoporous powder. Journal of Materials Science-Materials in Electronics, 22 3: 273-280. doi:10.1007/s10854-010-0127-6


Author Samie, L.
Beitollahi, A.
Faal-Nazari, N.
Nejad, M. M. Akbar
Vinu, A.
Title Effect of humidity treatment on the structure and photocatalytic properties of titania mesoporous powder
Journal name Journal of Materials Science-Materials in Electronics   Check publisher's open access policy
ISSN 0957-4522
1573-482X
Publication date 2011-03
Sub-type Article (original research)
DOI 10.1007/s10854-010-0127-6
Volume 22
Issue 3
Start page 273
End page 280
Total pages 8
Place of publication Secaucus, NJ, United States
Publisher Springer
Language eng
Formatted abstract
In the work presented here, mesoporous titania (MT) powders is synthesized by sol–gel method using amphiphilic triblock copolymer as a template at two different levels of relative humidity (RH); 20 and 80%. Various techniques such as small angle X-ray diffraction (SAXRD), wide angle X-ray diffraction (XRD), UV–visible spectroscopy, high resolution transmission electron microscopy (HRTEM), Fourier transformed infra red (FTIR) spectroscopy and N2-adsorption/desorption analysis were utilized to study the prepared samples. Further, the photocatalytic activities of the prepared samples were evaluated from the photo-degradation analysis of methylene blue (MB). For the sample treated with 80%RH the formation of an ordered mesoporous structure with a high specific surface area (172 m2g−1), mesoporosity (48%) and enhanced photocatalytic activity were obtained compared to those of the sample subjected to 20%RH. The observed increased MB degradation for the latter is mainly attributed to the formation of higher specific surface area and mesoporosity. The availability of highly ordered open pore channels could provide increased contacts between reactants in the solution and the active sites on the surfaces of MT particles.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Australian Institute for Bioengineering and Nanotechnology Publications
 
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