Synthesis of self-organized polycrystalline F-doped TiO2 hollow microspheres and their photocatalytic activity under visible light

Zhou, Jin Kai, Lv, Lu, Yu, Jianqiang, Li, Hong Liang, Guo, Pei-Zhi, Sun, Hong and Zhao, X. S. (2008) Synthesis of self-organized polycrystalline F-doped TiO2 hollow microspheres and their photocatalytic activity under visible light. Journal of Physical Chemistry C, 112 14: 5316-5321. doi:10.1021/jp709615x


Author Zhou, Jin Kai
Lv, Lu
Yu, Jianqiang
Li, Hong Liang
Guo, Pei-Zhi
Sun, Hong
Zhao, X. S.
Title Synthesis of self-organized polycrystalline F-doped TiO2 hollow microspheres and their photocatalytic activity under visible light
Journal name Journal of Physical Chemistry C   Check publisher's open access policy
ISSN 1932-7447
1932-7455
Publication date 2008-04-01
Sub-type Article (original research)
DOI 10.1021/jp709615x
Volume 112
Issue 14
Start page 5316
End page 5321
Total pages 6
Place of publication Washington, DC United States
Publisher American Chemical Society
Language eng
Formatted abstract
A wet-chemistry method was used to dope F- ions into crystalline TiO2 by hydrothermal treatment of TiF4 in an HC1 solution. Field-emission electron microscope and transmission electron microscope images showed that the products exhibited a flowerlike morphology with a hollow interior. X-ray photoelectron spectroscope data demonstrated the doping of F in the lattice of crystalline TiO2. The flowerlike F-doped TiO2 hollow microspheres synthesized at 180 °C showed the highest photocatalytic activity for the degradation of methylene blue under visible light irradiation. Ostwald ripening is the main reason responsible for the formation of the hollow interior of the F-doped TiO2 micropheres, and the HF species generated from the hydrothermal reaction is believed to accelerate the formation of the TiO2 hollow spheres. © 2008 American Chemical Society.
Keyword Ion-Implanted Tio2
Titanium-Dioxide
Solution Route
Anatase Tio2
Spheres
Water
Irradiation
Degradation
Fabrication
Nanospheres
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

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