Abstract
Multibubble sonoluminescence from water was found to be quenched by the addition of low levels of unsubstituted or 2-chloro-substituted aliphatic carboxylic acids and the aromatic solutes, phenol and aniline. In all cases, the sonoluminescence intensity could be restored to the level obtained in pure water by adjusting the solution pH to a point where the solutes were completely in their ionized form. A comparison of the sonochemical decomposition of phenol at pH levels above and below its pKa revealed that only when the solute was in its neutral form was there significant decomposition. It is shown that both the sonochemical decomposition of phenol and the sonoluminescence quenching by all solutes studied can be directly correlated with the amount of solute adsorbed at the bubble/solution interface. The relationship between sonochemical activity and sonoluminescence quenching by water-soluble organic solutes is discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
