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Synthesis and photo activity of flower-like anatase TiO2 with {001} facets exposed

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Authors
Zhao, Y.
Zhao, Q.
Li, Xin Yong
Hou, Y.
Zou, X.
Wang, J.
Jiang, T.
Xie, T.
Date
2012
Type
Journal Article

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Zhao, Y. and Zhao, Q. and Li, X.Y. and Hou, Y. and Zou, X. and Wang, J. and Jiang, T. et al. 2012. Synthesis and photo activity of flower-like anatase TiO2 with {001} facets exposed. Materials Letters. 66 (1): pp. 308-310.
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Materials Letters
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Department of Chemical Engineering
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Abstract

Developing photocatalysts with specific morphology promises good opportunities to discover the geometry-dependent properties. Herein, flower-like anatase TiO2 assemblies with dominant {001} facets exposed were successfully synthesized via a simple, economical hydrothermal route with titanium sulfate and hydrofluoric acid. Their surface morphology and structure were investigated by scanning electron microscopy, transmission electron microscopy, selected area electron diffraction, X-ray diffraction, and Brunauer-Emmet-Teller N2 gas adsorption-desorption isotherms. The optical property and the photo-induced charge carriers of the flower-like TiO2 were studied by UV-vis diffuse reflectance spectroscopy and transient photovoltage technique. The flower-like TiO2 particles exhibited a good photocatalytic activity in degrading rhodamine B. © 2011 Elsevier B.V.