Hydrothermal conversion of Mg2TiO4 into brookite-type TiO2 under mild conditions

Takahiro Kozawa, Hideya Hattori, Shuhei Ogo, Yusuke Ide, Yoshikazu Suzuki

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A simple and mild synthetic route via a hydrothermal treatment of Mg 2TiO4 has been developed to prepare brookite-type TiO 2. The hydrothermal conversion of Mg2TiO4 to brookite proceeded in 1 M HCl solution even at 100 C. The converted brookite grains were composed of the angular particles covered on the textured surface, leaving the original morphology of Mg2TiO4 grains. Compared with the commercially available TiO2 catalysts (rutile, anatase, and P25), the brookite obtained in this study showed a good photocatalytic activity toward the oxidation of benzyl alcohol to benzaldehyde under a simulated sunlight irradiation.

Original languageEnglish
Pages (from-to)7969-7973
Number of pages5
JournalJournal of Materials Science
Volume48
Issue number22
DOIs
Publication statusPublished - 2013 Nov
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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