Titanium(IV) oxide photocatalyst of ultra-high activity: a new preparation process allowing compatibility of high adsorptivity and low electron-hole recombination probability

被引：39
作者：
Kominami, H [1 ]
Murakami, S
Kera, Y
Ohtani, B
机构：
[1] Kinki Univ, Fac Sci & Engn, Dept Appl Chem, Higashiosaka, Osaka 5778502, Japan
[2] Hokkaido Univ, Ctr Catalysis Res, Lab Catalyt React Chem, Sapporo, Hokkaido 0600811, Japan
来源：
CATALYSIS LETTERS | 1998年 / 56卷 / 2-3期
关键词：
titanium oxide; photocatalyst; silver metal deposition; recombination;
D O I：
10.1023/A:1019052911437
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Microcrystalline anatase titanium(IV) oxide (TiO2) particles were synthesized by hydrothermal crystallization in organic media (HyCOM) followed by calcination, and used in a photocatalytic reaction system of silver metal deposition. Upon elevating the post-calcination temperature, the photocatalytic activity was enhanced in spite of the simultaneous decrease in amount of surface-adsorbed Ag+. Comparison with the effect of calcination temperature on the other reaction systems revealed that the annealing effect became more significant with increasing number of electrons (or holes) required to complete the photocatalytic reaction process.
引用
收藏
页码：125 / 129
页数：5
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