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Hydrothermal Synthesis and Photocatalytic Activity of Titanium Dioxide Nanotubes, Nanowires and Nanospheres

Published online by Cambridge University Press:  01 February 2011

Jin Wang ,
Ming Li ,
Mingjia Zhi ,
Ayyakkannu Manivannan  and
Nianqiang Wu
Jin Wang
Affiliation:
jwang10@mix.wvu.edu, West Virginia University, Mechanical and Aerospace Engineering, Morgantown, West Virginia, United States
Ming Li
Affiliation:
mli5@mix.wvu.edu, West Virginia University, Mechanical and Aerospace Engineering, Morgantown, West Virginia, United States
Mingjia Zhi
Affiliation:
mzhi@mix.wvu.edu, West Virginia University, Mechanical and Aerospace Engineering, Morgantown, West Virginia, United States
Ayyakkannu Manivannan
Affiliation:
Ayyakkannu.Manivannan@NETL.DOE.GOV, West Virginia University, Physics, Morgantown, West Virginia, United States
Nianqiang Wu
Affiliation:
nick.wu@mail.wvu.edu, West Virginia University, Mechanical and Aerospace Engineering, Morgantown, West Virginia, United States
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Abstract

TiO2 nanostructures with various morphologies and crystal structures were obtained by calcination of alkaline hydrothermal synthesized hydrogen titanate at different temperatures. The photocatalytic activities of the as-prepared samples were investigated by degradation of methyl orange aqueous solution under ultraviolet irradiation. The effects of the phase composition, crystallinity, surface area and shape of the nanostructures were evaluated. The results showed that high crystallinity, pure anatase phase and nanowire structure are favorable for the photocatalysis. The dependence of the photocatalytic activity on the surface area is not significant as usually expected.

Keywords

nanostructurephotochemicalTi
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1144: Symposium LL – Nanowires–Systhesis, Properties, Assembly and Applications , 2008 , 1144-LL07-08
Copyright
Copyright © Materials Research Society 2009

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References

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