| 开放式声化学反应体系中的反应动力学 |
| Sonochemical Reaction Kinetics in Open Acoustical Processor |
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| 摘要: 采用气液传质的双膜理论建立了开放体系中声化学反应的动力学模型，同时用声源频率为500 kHz，声强为3 W·cm-2的超声波在开放式声化学反应器内引发被空气饱和溶解的KI纯水溶液中的声化学反应，并检测反应过程中溶液的电导率，pH值改变及KI溶液中I2的析出量，结果表明，它们与超声辐照时间之间呈线性关系，与理论模型吻合。 |
| 关键词: 开放式声化学反应体系 双膜理论 声化学产额 声化学反应动力学 |
| 基金项目: |
| Abstract: Bi-membrane theory of liquid-gas mass transfer was used to set up a model for the open acoustical processor, the theoretical results show that the sonochemical reaction kinetic equation has a linear relation with sonication time. For the result verification, ultrasound with frequency of 500 kHz and intensity of 3 W·cm-2 was used to induce sonochemical reaction in air saturated water and KI solution. By determining the changes of pH value, electro-conductance and the I2 releasing from KI solution, the theoretical model is comfirmed to be correct. |
| Keywords: open acoustical processor, bi-membrane theory, sonochemical yeild, reaction kinetics |
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| 摘要点击次数: 1569 |
| 全文下载次数: 1771 |
| 刘 岩,张志强.开放式声化学反应体系中的反应动力学[J].无机化学学报,2007,23(11):1979-1982. |
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