Microwave-assisted hydrothermal synthesis of brookite nanoparticles from a water-soluble titanium complex and their photocatalytic activity

Yusuke Morishima, Makoto Kobayashi, Valery Petrykin, Masato Kakihana, Koji Tomita

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Nanoparticles of brookite titanium oxide were prepared by microwave-assisted hydrothermal (MH) method at 200°C (heating time 5 min) for 0-60 minutes starting from the titanium peroxo glyeolate complex in basic solution. The effect of microwave heating on the morphology of the brookite particles was examined. The samples were characterized by X-ray diffraction (XRD), Raman spectroscopy and transmission electron microscopy (TEM). It was found that all powders were composed of single phase brookite and contained two different types of particles. The activity in photodecomposition of oxalic acid by the samples prepared using MH method was higher than activities of brookite nanoparticles synthesized by the conventional hydrothermal method.

Original languageEnglish
Pages (from-to)826-830
Number of pages5
JournalJournal of the Ceramic Society of Japan
Volume115
Issue number1348
DOIs
Publication statusPublished - 2007 Dec

Keywords

  • Brookite
  • Microwave hydrothermal method
  • Nanoparticles
  • Photocatalyst
  • Water-soluble titanium complex

ASJC Scopus subject areas

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

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