The Influence of Dissolved Oxygen on Sonoluminescence
LIU Yan1，WANG Jun2
1. School of Chemical Engineering，Qinghai University, Xining 810016, China 2. Institute of Chemical Engineering，Dalian University of Technology, Dalian 116012, China
Abstract：Ultrasound at frequency of 1.1 MHz was used to study the sonoluminescence(SL) in air-saturated water at temperature ranging from 283 to 313 K. It was found that the logarithm of the detected SL intensity increases linearly with the dissolved oxygen(DO) concentration. The waters with five kinds of anions in different concentration (mg·L-1): Cl-(5-25)，NO-3(0.2-1.8)，F-(0.1-2.7)，HCO-3(8-15)，SO2-4(0.4-40) were used to simulate natural environmental chemistry background. The experimental results show that the anions in the simulated water have no influence on the SL intensity.
Key words：Ultrasound;Cavitation;Sonoluminescence;DO in water
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