| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Research Abstract |
Atmospheric-pressure microplasma flow was generated between a surgical needle electrode and GND by a pulsed high voltage. Decolorization of an indigo carmine solution, sterilization of E-coil and bacteria and synthesis of graphite oxide were studied using microbubbles of the plasma gas. Since ozone production efficiency is low and the ozone concentration dissolved in water is less than 0.25 ppm, it suggests the possibility of water treatment without using dense ozone. In O2 plasma bubbling, rapid oxidation occurs due to O radicals. On the other hand, N2/O2 plasma bubbling shows organic compounds were decomposed slowly via introducing nitroso groups with NO2 ions under weak acidity. Furthermore, ESR measurement and chemical probe method using terephthalic acid showed OH radicals generated in water by the O2 plasma bubbling.
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