TY - JOUR
T1 - Solvothermal synthesis of SrTiO3 nanoparticles precisely controlled in surface crystal planes and their photocatalytic activity
AU - Kimijima, Takeshi
AU - Kanie, Kiyoshi
AU - Nakaya, Masafumi
AU - Muramatsu, Atsushi
PY - 2014/1
Y1 - 2014/1
N2 - 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.
AB - 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.
KW - Morphology control
KW - Photocatalyst
KW - Strontium titanate
UR - http://www.scopus.com/inward/record.url?scp=84882762034&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84882762034&partnerID=8YFLogxK
U2 - 10.1016/j.apcatb.2013.07.051
DO - 10.1016/j.apcatb.2013.07.051
M3 - Article
AN - SCOPUS:84882762034
SN - 0926-3373
VL - 144
SP - 462
EP - 467
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
ER -