Selective Ion Separation Based on the Interaction between Ion and Electron Transfer Reactions at Liquid/Liquid or Liquid/Membrane Interface.

在水（W）/有机（CH 3）溶液或W/膜（M）的界面处的离子转移由两相之间的伽伐尼电势差（DELTApsi）控制。本工作的目的是开发一种高灵敏度的离子分离的方法，利用界面的Δ psi是严格控制的氧化还原（电子转移）反应。用液/液界面电荷转移伏安法（VCTLLI）研究了含铁氰化物、亚铁氰化物、氢氧根离子和对苯二酚等金属钨与含二茂铁、四硫富瓦烯、四氰基醌二甲烷等金属钨之间的界面电子转移反应，导出了电子转移的理论方程。电子转移是由标准的氧化还原电位，浓度，扩散系数，和在两个阶段的氧化还原物种的活动。结合方程 ...更多信息 对电子转移反应和离子转移反应进行了讨论，提出了离子转移反应与电子转移反应相互作用的理论，并得到了实验证实.温度对离子转移反应的影响主要归因于溶剂性质随温度的变化，从水活度和W中离子对的形成随盐浓度的变化来解释共存盐的影响。这些效应对于实现由电子转移控制的离子高选择性分离是非常有效的，伴随离子转移的DELATpsi振荡不仅影响离子的分离，而且与生物体的激发有着深刻的联系。基于VCTLLI对界面离子迁移和离子对吸附的研究，并考虑两相离子平衡，首次对振荡过程提出了定量解释。少

The ion transfer at an interface of aqueous (W) /Organic (Org) solution or W/Membrane (M) is controlled by the Galvani potential difference (DELTApsi) between the two phases. The objective of the present work was to develop a methodology for the highly sensitive ion separation utilizing the interface of which DELTA psi is controlled critically by the redox (electron transfer) reaction. The results are summarized in the following.The electron transfer reactions at the interface between W containing ferricyanide, ferrocyanide, hydroxide ions or hydroquinone, etc. and Org containing ferrocene, tetrathiafulvalene, tetracyanoquinodimethane, etc. were investigated by the Voltammetry for the Charge Transfer at the Liquid/Liquid Interface (VCTLLI), and theoretical equations for the electron transfer were derived. The electron transfer is determined by the standard redox potential, concentration, diffusion coefficient, and activity of the redox species in both the phases. Combining the equation … More s for the electron transfer and those for the ion transfer, a theory for the interaction between ion and electron transfer reactions was proposed, and the theory was confirmed experimentally.The effect of temperature on the ion transfer is mainly ascribable to the change in properties of solvents with the temperature, and that of coexisting salts is explained from both variations of water activity and the ion-pair formation in W with the salt concentrations. These effects are expected to be very effective to realize a highly selective separation of ions controlled by the electron transfer.The oscillation of DELATpsi accompanied with the ion transfer not only influences the separation of ions but also relates profoundly to the excitation of living organisms. The first quantitative explanation on the process of the oscillation was proposed based on the investigation on the ion transfer and adsorption of ion-pair at the interface by VCTLLI and the consideration of the ionic equilibrium in both the phases. Less