| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
Two kinds of monodisperse silica nanoparticles were functionalized with different organosilanes, whose organic groups can mutually be reacted. These silica paritcles were reacted by mortar-and-pestle mixing at room temperature. The polymerization of nanoparticles was confirmed by SEM and nitrogen adsorption/desorption. The combination of 20 nm-silica and 100 nm-silica nanoparticles provided a new mesoporous structure, while the mixing did not occur in the nanoscopic level for the same silica nanoparticles without functionalization. This is one of the best ways to reduce the surface energy and to mix two kinds of silica nanoparticles uniformly. Most of the amino functional groups in the organic chains were active for the adsorption of aqueous heavy metal ions and a high adsorption capacity was obtained.
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