| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Research Abstract |
Valence controlled TiO_2 nanoparticles and ZnO nanoparticles can be used as transparent electroconductive materials and UV shielding materials. They also show photocatalytic activity. In order to improve these characteristics, it is important issue to control orientation of the crystallites in sintered compacts and thin films. Stable dispersion of the oxide nanoparticles in solution is essentially important to obtain uniform thins films.
In this study, valence controlled TiO_2 nanoparticles and ZnO nanoparticles were prepared by solution process with low temperature heating process. Furthermore, the nanoparticle formation process was carried out in a cellulose tube. The dialysis processes with cellulose tube enabled to obtain the oxide nanoparticles with stable dispersion in a aqueous solution since the formation and growth process was occurred with reducing the impurity ions by dialysis process.Furthermore, the nanosheet particles of Nb^<5+> - doped titanic acid was easily obtained and the highly oriented Nb5+ - doped TiO_2 was formed by only coating process on substrate.
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