Synthesis of truncated anatase bipyramids  with exposure of {111} facets

ZHOU Minghui; YANG Qing

doi:10.3969/j.issn.0253-2778.2013.02.005

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Synthesis of truncated anatase bipyramids with exposure of {111} facets

Hefei National Laboratory for Physical Science at Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China

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https://doi.org/10.3969/j.issn.0253-2778.2013.02.005

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Author Bio:
ZHOU Minghui, female, born in 1987, master. Research filed: inorganic chemistry, inorganic synthesis and preparative chemistry. E-mail: mhzhou@mail.ustc.edu.cn
Corresponding author: YANG Qing
Received Date: 29 June 2012
Rev Recd Date: 19 September 2012
Publish Date: 28 February 2013

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Abstract

Abstract

Polyhedrons of truncated anatase bipyramids with exposure of {111} facets were hydrothermally synthesized from hydrolysis of TiF4 in the presence of NH4F, HCl, and tri-block copolymer P123 using citric acid monohydrate as a stabilizer. The phase, crystal structure, morphology, chemical composition and property of the anatase polyhedrons were characterized by various techniques of X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), selected area electron diffraction (SEAD), energy-dispersive X-ray spectrometry (EDX) and UV radiations, and their high performances in photo-degradation of methylene blue (MB) under alkaline conditions were specifically recognized.

Abstract

Polyhedrons of truncated anatase bipyramids with exposure of {111} facets were hydrothermally synthesized from hydrolysis of TiF4 in the presence of NH4F, HCl, and tri-block copolymer P123 using citric acid monohydrate as a stabilizer. The phase, crystal structure, morphology, chemical composition and property of the anatase polyhedrons were characterized by various techniques of X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), selected area electron diffraction (SEAD), energy-dispersive X-ray spectrometry (EDX) and UV radiations, and their high performances in photo-degradation of methylene blue (MB) under alkaline conditions were specifically recognized.