| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
Silica and silica-alumina nanoparticles were formed as adsorbents on anatase-type titania particles immersed in alkoxide solutions during UV irradiation. The concentration of the basic OH groups on the titania surface increased during the UV irradiation. The basicity promoted hydrolysis and subsequent polymerization of the alkoxides on the titania surface on which the silica and silica-alumina layers were deposited. The titania particles loading a small amount of the thin silica and silica-alumina layers exhibited a higher photocatalytic activity for organic molecule degradation and photofuel cell performance than the original titania. The silica-modified titania particles efficiently adsorbed, then degraded the molecules on the surface. Therefore, the photocatalyzed surface modification in this study was significantly useful to activate the titania surface.
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