New water-soluble complexes of titanium with amino acids and their application for synthesis of TiO2 nanoparticles

Makoto Kobayashi, Valery Petrykin, Koji Tomita, Masato Kakihana

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

We prepared two new water-soluble complexes of titanium with L-serine and L(-)-threonine amino acids. It was demonstrated that these compounds can be outstanding precursors for a hydrothermal synthesis of nanocrystalline TiO 2. The obtained powders were composed of anatase or a mixture of anatase and brookite. Particles diameters were ∼10 nm and BET surface areas were ∼120 m2/g. The powder composed of anatase and brookite synthesized by hydrothermal treatment of the titanium-threonine complex aqueous solution at 200°C for 24 h exhibited higher photocatalytic activity for oxalic acid oxidation than the commercial anatase-type TiO2 photocatalyst (ST-01, Ishihara Sangyo Kaisya, average diameter: 7 nm, specific surface area: 257.5 m2/g).

Original languageEnglish
Pages (from-to)578-583
Number of pages6
JournalJournal of the Ceramic Society of Japan
Volume116
Issue number1352
DOIs
Publication statusPublished - 2008 Apr

Keywords

  • Hydrothermal synthesis
  • New water-soluble titanium complex
  • Photocatalyst
  • Titanlum-amino acid complex

ASJC Scopus subject areas

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

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