2010 Fiscal Year Final Research Report
Synthesis and Structure Control of Surface Modified Nanoparticles by Subcritical CO_2-Expanded Solutions
| Project/Area Number |
21760621
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Reaction engineering/Process system
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| Research Institution | Fukuoka University |
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Principal Investigator |
MATSUYAMA Kiyoshi Fukuoka University, 工学部, 助教 (40299540)
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| Project Period (FY) |
2009 – 2010
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| Keywords | ガス膨張液体 / 超臨界流体 / 二酸化炭素 / ナノ粒子 / 表面改質 / 超音波 |
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| Research Abstract |
We report the surface modification of micron and nano sized particles by the pressure-induced phase separation (PIPS) of CO_2-expanded solutions. We developed an ultrasonic irradiation apparatus in high-pressure fluids in order to accelerate the dispersity of surface modified particles. Shock waves generated by collapsing cavitation bubbles induced with ultrasonic irradiation accelerated the deagglomeration and dispersion of particles. The surface modified particles were applied as the hollow microspheres, porous membrane of metal oxides, and metal oxide nanoparticles-polymer composite film.
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