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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.117  No.1363 (March) (2009)  >  pp.347-350

Journal of the Ceramic Society of Japan
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Photocatalytic activity of nanocrystalline TiO2(B) synthesized from titanium glycolate complex by hydrothermal method

Kazuhiro YAMAMOTO1), Hironori SHIMOITA1), Koji TOMITA1)2), Kazumi FUJITA1), Makoto KOBAYASHI2), Valery PETRYKIN2) and Masato KAKIHANA2)
1) Department of Chemistry, School of Science, Tokai University
2) Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

  The metastable phase of TiO2(B), one of the polymorphs of titanium dioxide (TiO2), was prepared by a hydrothermal treatment of a titanium glycolate complex ([Ti4(C2H2O3)4(C 2H3O3)2(O2)4O2]6-) at 473 K for 1-72 h in the presence of H2SO4. Characterization by X-ray diffraction (XRD) and transmission electron microscopy (TEM) revealed that the obtained samples were composed of single phase TiO2(B) and the particles had plate-like morphology. After post-synthetic hydrothermal crystal growth (PHCG) applied to the as-prepared sample, thicker plate-like shaped particles were obtained. The photocatalytic activities of the samples obtained by the hydrothermal treatment and after the subsequent PHCG were evaluated in terms of methanol decomposition.

TiO2(B), Water-soluble titanium complex, Hydrothermal synthesis, Photocatalyst, Titanium dioxide

Received: December 01, 2008
Accepted: January 15, 2009 , Published online: March 01, 2009
Copyright (c) 2009 The Ceramic Society of Japan



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