Controllable synthesis of mesoporous F-TiO2 spheres for effective photocatalysis

Pan, Jia Hong, Cai, Zhongyu, Yu, Yu and Zhao, X. S. (2011) Controllable synthesis of mesoporous F-TiO2 spheres for effective photocatalysis. Journal of Materials Chemistry, 21 30: 11430-11438. doi:10.1039/c1jm11326g


Author Pan, Jia Hong
Cai, Zhongyu
Yu, Yu
Zhao, X. S.
Title Controllable synthesis of mesoporous F-TiO2 spheres for effective photocatalysis
Journal name Journal of Materials Chemistry   Check publisher's open access policy
ISSN 0959-9428
1364-5501
Publication date 2011
Sub-type Article (original research)
DOI 10.1039/c1jm11326g
Open Access Status Not Open Access
Volume 21
Issue 30
Start page 11430
End page 11438
Total pages 9
Place of publication Cambridge, England, U.K.
Publisher Royal Society of Chemistry
Collection year 2012
Language eng
Formatted abstract
An effective bottom-up synthesis strategy has been developed to prepare monodisperse mesoporous F–TiO2 spheres consisting of anatase nanocrystallites. The spherical morphology is derived from nonporous hydrous TiO2 spheres obtained from the direct precipitation of titanium alkoxides under the direction of dodecylamine (DDA) in water-containing ethanol–acetonitrile mixed solution, and a mesoporous structure is generated and stabilized by a subsequent solvothermal reaction in NH4F-contaning ethanol solution. After calcination, mesoporous F–TiO2 spheres with a diameter around 250 nm are fully crystallized with a large surface area of 132 m2 g−1, and a pore size of 8.5 nm. Ascribed to their accessible mesoporous structure, well-packed anatase nanocrystallites, excellent light harvesting property, and surface fluorination, the resulting mesoporous F–TiO2 spheres show enhanced light harvesting in the UV-Vis range as well as superior photocatalytic activity in dye degradation.
Keyword Sensitized Solar-Cells
High Surface-Areas
Exposed 001 Facets
Hollow Microspheres
Visible-Light
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status Non-UQ
Additional Notes First published on the web 30 Jun 2011.

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Non HERDC
 
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