Preparation of flower-like titania particles from lithium titanate hydrate via acid treatment and hydrothermal crystallization

Yuki Kimura, Takashi Kojima*, Mizuki Murofushi, Mana Kato, Kazuya Ujiie, Naofumi Uekawa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Micron-sized flower-like particles with plate-like titania petals were prepared by acid and posthydrothermal treatment of flower-like lithium titanate hydrate (LTH). Hydrolysis of titanium alkoxide and ethanol washing were used to create porous hydrous titania particles with spherical shapes. Hydrothermal treatment in LiOH aqueous solution resulted in the formation of plate-like crystals of LTH on hydrous titania particles. Li ions were removed with maintaining the appearance of the original flower-like particles by stirring in 0.1 M hydrochloric acid. In addition, the crystallinity of the particles as anatase was improved by hydrothermal treatment in pure water. Although having a micron-order size, the obtained particles showed almost the same photodegradation ability of Evans blue under ultraviolet irradiation as AEROXIDEµ TiO2 P25.

Original languageEnglish
Pages (from-to)294-298
Number of pages5
JournalJournal of the Ceramic Society of Japan
Volume130
Issue number4
DOIs
Publication statusPublished - 2022 Mar 1
Externally publishedYes

Keywords

  • Flower-like
  • Hydrothermal
  • Lithium titanate hydrate
  • Photocatalyst
  • Titania

ASJC Scopus subject areas

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

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