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

*この研究の対応する著者

研究成果: Article査読

1 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)294-298
ページ数5
ジャーナルJournal of the Ceramic Society of Japan
130
4
DOI
出版ステータスPublished - 2022 3月 1
外部発表はい

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 化学 (全般)
  • 凝縮系物理学
  • 材料化学

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