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

Takeshi Kimijima, Kiyoshi Kanie, Masafumi Nakaya, Atsushi Muramatsu

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)462-467
Number of pages6
JournalApplied Catalysis B: Environmental
Volume144
DOIs
Publication statusPublished - 2014 Jan

Keywords

  • Morphology control
  • Photocatalyst
  • Strontium titanate

ASJC Scopus subject areas

  • Catalysis
  • Environmental Science(all)
  • Process Chemistry and Technology

Fingerprint Dive into the research topics of 'Solvothermal synthesis of SrTiO<sub>3</sub> nanoparticles precisely controlled in surface crystal planes and their photocatalytic activity'. Together they form a unique fingerprint.

Cite this