TY - JOUR
T1 - Photocatalytic activity of platinum loaded fibrous titania prepared by solvothermal process
AU - Yin, Shu
AU - Sato, Tsugio
N1 - Funding Information:
This research was partially supported by the Ministry of Education, Culture, Sports, Science and Technology, a Grant-in-Aid for the COE project (Giant Molecules and Complex Systems), and a Grant-in-Aid for Science Research (No. 14750660).
PY - 2005/1/1
Y1 - 2005/1/1
N2 - Fibrous titania (TiO2/Pt) loaded with 1 wt.% Pt was prepared by the solvothermal reactions of H2-2x [Pt(NH3)4]x Ti4O9·0.25H2O and H2Ti4O9·0.25H2O/Pt precursors. The powders prepared by the solvothermal treatment of both precursors in methanol at 325°C possessed higher photocatalytic activity than those prepared by calcination and hydrothermal treatment. The powders prepared by the solvothermal reaction in methanol from H2-2x[Pt(NH3) 4]x Ti4O9 ·0.25H2O precursor showed higher photocatalytic activity than that from H2Ti4O9 ·0.25H2O/Pt. The phase transformation from protonic layered tetratitanate to titania and the reduction of platinum ion to Pt metal could proceed at the same time during the solvothermal reaction in methanol, resulting the uniformly deposition of platinum fine particles on the surface of well-crystallized titania particles.
AB - Fibrous titania (TiO2/Pt) loaded with 1 wt.% Pt was prepared by the solvothermal reactions of H2-2x [Pt(NH3)4]x Ti4O9·0.25H2O and H2Ti4O9·0.25H2O/Pt precursors. The powders prepared by the solvothermal treatment of both precursors in methanol at 325°C possessed higher photocatalytic activity than those prepared by calcination and hydrothermal treatment. The powders prepared by the solvothermal reaction in methanol from H2-2x[Pt(NH3) 4]x Ti4O9 ·0.25H2O precursor showed higher photocatalytic activity than that from H2Ti4O9 ·0.25H2O/Pt. The phase transformation from protonic layered tetratitanate to titania and the reduction of platinum ion to Pt metal could proceed at the same time during the solvothermal reaction in methanol, resulting the uniformly deposition of platinum fine particles on the surface of well-crystallized titania particles.
KW - Hydrogen evolution
KW - Phase transformation
KW - Photocatalytic activity
KW - Platinum loaded fibrous TiO
KW - Solvothermal reaction
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U2 - 10.1016/j.jphotochem.2004.05.038
DO - 10.1016/j.jphotochem.2004.05.038
M3 - Article
AN - SCOPUS:8744288594
SN - 1010-6030
VL - 169
SP - 89
EP - 94
JO - Journal of Photochemistry and Photobiology A: Chemistry
JF - Journal of Photochemistry and Photobiology A: Chemistry
IS - 1
ER -