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Research Article

Low-Cost Synthesis of Robust Anatase Polyhedral Structures with a Preponderance of Exposed {001} Facets for Enhanced Photoactivities

Yu Yu1,2, Changyan Cao1, Wei Li1, Ping Li1,2, Jin Qu1, Weiguo Song1( )
Beijing National Laboratory for Molecular Sciences (BNLMS) Laboratory for Molecular Nanostructures and Nanotechnology Institute of Chemistry Chinese Academy of SciencesBeijing 100190 China
The Graduate University of the Chinese Academy of Sciences, YuquanluBeijing 100049 China
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Abstract

Anatase polyhedral materials with a preponderance of exposed {001} facets have been produced using (NH4)2TiF6 and water as raw materials. The crystallographic structure and the growth mechanism of the anatase TiO2 product were investigated systematically by XRD (X-ray diffraction), scanning electron microscopy (SEM), TEM (transmission electron microscope), and ultraviolet (UV) visible and photoluminescence spectroscopy. The products exhibited significantly higher activities than commercial P25 titania nanoparticles in the photocatalytic degradation of methylene blue dye. Moreover, the materials have large particle sizes and are very robust, making them suited for practical uses.

Keywords

High-energy facetsanatase TiO2crystal growthphotodegradationlow-cost

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Nano Research
Volume 5 Issue 6,
June 2012
Pages 434-442
DOI: 10.1007/s12274-012-0226-1
Cite this article:
Yu Y, Cao C, Li W, et al. Low-Cost Synthesis of Robust Anatase Polyhedral Structures with a Preponderance of Exposed {001} Facets for Enhanced Photoactivities. Nano Research, 2012, 5(6): 434-442. https://doi.org/10.1007/s12274-012-0226-1

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Received: 21 March 2012
Revised: 28 April 2012
Accepted: 05 May 2012
Published: 28 May 2012
© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2012
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