The interphase mass transfer in liquid–liquid systems with Marangoni effect
The interphase mass transfer in liquid–liquid systems with Marangoni effect
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DOI：
10.1140/epjst/e2015-02368-0
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发表时间：
2015-04
期刊：
影响因子：
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通讯作者：
J. Chen;C. Yang;Zs Mao
中科院分区：
文献类型：
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作者：
J. Chen;C. Yang;Zs Mao
本文综述了液-液体系中伴有Marangoni效应的相间传质过程的相关研究。Marangoni效应是由界面张力的局部变化引发的，并受体系的物理化学性质、溶质浓度和整体流动等诸多因素的影响。Marangoni效应的起始判据已经通过理论分析和实验验证得到了广泛的讨论，但由于系统几何形状和边界条件的复杂性，至今还没有一个统一的、普适的判据。当Marangoni对流发生时，邻近界面的整体流动被自发地扰动，通常导致传质系数增强。此外，已发现表面活性剂通过促进或抑制Marangoni对流来影响溶质穿过界面的传输，这取决于添加剂的性质。
In this paper, we review the related studies on the interphase mass transfer process accompanied with Marangoni effect in liquid-liquid systems. The Marangoni effect is triggered by the local variation of interfacial tension and influenced by many factors, such as the physicochemical properties of the system, the solute concentration and the bulk flow. The onset criterion of the Marangoni effect has been discussed extensively via theoretical analysis and experimental verification, but a unified and universal criterion was still not developed due to the complex system geometry and boundary conditions. When the Marangoni convection occurred, the bulk flow adjacent to the interface was spontaneously disturbed, normally leading to an enhanced mass transfer coefficient. Besides, the surface active agent has been found to affect the solute transport across the interface, by either promoting or inhibiting the Marangoni convection according to the nature of additives.