P-20 ソノルミネッセンス気泡の分裂によるOHラジカル反応の増大(ポスターセッション)

概要

論文の詳細を見る
The amount of OH radicals produced from a single sonoluminescing bubble at 24.5 kHz was measured using aqueous terephthalate ion as a fluorescence monitor. Corresponding dynamics of the single bubble cavitation was observed by stroboscopic and laser-light scattering methods. Under stable bubble conditions at 1.13, 1.30 and 1.40 atm in sound pressure amplitude, the amount of OH radicals was proportional to the sound pressure amplitude, where the maximum bubble radius and the sonoluminescence intensity were also proportional to the sound pressure amplitude. However, under the unstable bubble condition at 1.07 atm, where the bubble was pinching off microbubbles and "dancing" by the recoil of the remaining bubble, the amount of OH radicals was larger than that at 1.13 and 1.30 atm, in spite of no sonoluminescence emitted by the dancing bubble.
日本ソノケミストリー学会の論文
2004-11-11