Apatite-coated titanium dioxide photocatalyst

被引:3
作者
Nonami, T [1 ]
Hase, H [1 ]
Funakoshi, K [1 ]
机构
[1] AIST, Moriyama Ku, Nagoya, Aichi 4638560, Japan
来源
ECO-MATERIALS PROCESSING & DESIGN | 2003年 / 439卷
关键词
apatite; titanium dioxide; photocatalyst;
D O I
10.4028/www.scientific.net/MSF.439.337
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We developed a multifunctional composite material with a titanium dioxide surface covered by apatite for application in air purification and as an antimicrobial, antifungal, and antifouling coating. This composite has a function to absorb and decompose bacteria and various other materials. TiO2 powder were soaked in a pseudo- body solution containing phosphate ions in excess for I day at 37degreesC. This composite material has the following characteristics: (1) the apatite adsorbs materials even without exposure to light; (2) materials adsorbed by the apatite are decomposed by the titanium dioxide photocatalyst on exposure to light; (3) the apatite is used as a spacer, allowing blending of the material with resins, organic coatings, and other organic materials; (4) though the photocatalyst requires a fixed interval to decompose organic materials, capture of materials by the apatite ensures decomposition.
引用
收藏
页码:337 / 343
页数:7
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