Photocatalytic activity of nanocrystalline TiO2(B) synthesized from titanium glycolate complex by hydrothermal method

Kazuhiro Yamamoto, Hironori Shimoita, Koji Tomita, Kazumi Fujita, Makoto Kobayashi, Valery Petrykin, Masato Kakihana

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

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 (C2H2O 3)4(C2H3O3) 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.

Original languageEnglish
Pages (from-to)347-350
Number of pages4
JournalJournal of the Ceramic Society of Japan
Volume117
Issue number1363
DOIs
Publication statusPublished - 2009 Mar

Keywords

  • Hydrothermal synthesis
  • Photocatalyst
  • Titanium dioxide
  • Water-soluble titanium complex

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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