Solvothermal synthesis of SrTiO3 nanoparticles precisely controlled in surface crystal planes and their photocatalytic activity

Takeshi Kimijima, Kiyoshi Kanie, Masafumi Nakaya, Atsushi Muramatsu

研究成果: Article査読

47 被引用数 (Scopus)

抄録

Strontium titanate (SrTiO3) nanoparticles of cubes, spheres, and flake-type morphology were obtained by a solvothermal synthesis in H2O/polyols mixed solution. Size of cubic particles bounded by {100} faces was controlled in the range from 24 to 43nm by the adjustment of initial volume ratio in H2O/diethylene glycol. Cubic particles exhibited high decomposition activity of organic compounds under ultraviolet irradiation. On the other hand, flake-type particles bounded mainly by {110} faces were obtained in H2O/ethylene glycol solution system, highly active for H2 evolution in photocatalytic reaction. These results indicate that the {100} surface shows high oxidative activity and that the {110} surface shows high reductive activity.

本文言語English
ページ(範囲)462-467
ページ数6
ジャーナルApplied Catalysis B: Environmental
144
DOI
出版ステータスPublished - 2014 1

ASJC Scopus subject areas

  • 触媒
  • 環境科学(全般)
  • プロセス化学およびプロセス工学

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