The Effects of Surface Active Solutes on Single Bubble Dynamics and Sonoluminescence and Their Relevance to Multibubble Sonoluminescence

摘要

The addition of micromolar quantities of nonvolatile surfactants, sodium dodecylsulfate (SDS), dodecyltrimethylammonium chloride (DTAC) and N-dodecyl(-N,N-dimethy 1-3-ammonio-1-propane sulfonate) (DAPS) did not significantly affect the maximum radius, equilibrium radius and Sonoluminescence intensity of a single bubble in water. Also, the addition of these solutes did not quench the multibubble Sonoluminescence observed in air-saturated water. However, the addition of volatile surface-active solutes, such as aliphatic alcohols, quenched the Sonoluminescence in both single bubble and multibubble systems. Based on these observations, it has been concluded that the accumulation of volatile products within the bubble over a number of acoustic cycles is the primary factor responsible for Sonoluminescence quenching.