The yields of H2O2 and H2 formed in the sonolysis of aqueous solution under noble gas are representative indexes for understanding the chemical effects of ultrasonic cavitation bubbles. In this study, the yields of H2O2 and H2 formed under Ar were evaluated as a function of the concentration of NaCl or KI. When these yields were analyzed by using a normalization technique, it was confirmed that the yields of H2 were more clearly related to Ar solubility than those of H2O2, suggesting that H2 is a more real probe to understand the chemical effects of cavitation bubbles in water. The effects of NaCl on sonochemical formation of oxidants were also compared with those of KI. When aqueous t-butanol solution was sonicated, the yields of H2 and the maximum temperature attained in a collapsing bubble (bubble temperature) decreased with increasing solution temperature and salt concentration, suggesting that these parameters affected the quantity related to the number (and/or size) of active bubbles as well as the quality related to the bubble temperatures.

中文翻译：

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Ar 下水和叔丁醇水溶液超声分解中 H2O2、H2 和气泡温度的评价：溶液温度和 NaCl 和 KI 无机添加剂的影响


在惰性气体下水溶液的声解中形成的 H2O2 和 H2 的产率是理解超声空化气泡化学效应的代表性指标。在这项研究中，评估了在 Ar 下形成的 H 2 O 2 和 H 2 的产率与 NaCl 或 KI 浓度的函数关系。当使用归一化技术分析这些产率时，证实 H2 的产率比 H 2 O 2 的产率与 Ar 溶解度更明显相关，这表明 H2 是了解水中空化气泡化学效应的更真实探针。还将 NaCl 对氧化剂声化学形成的影响与 KI 进行了比较。当对叔丁醇水溶液进行超声处理时，H2 的产率和塌陷气泡中达到的最高温度（气泡温度）随着溶液温度和盐浓度的增加而降低，这表明这些参数影响了与活性气泡数量（和/或大小）相关的数量以及与气泡温度相关的质量。