Физическое моделирование ионного транспорта в твердофазных системах

Abstract

We studied the processes of ion transfer on a single-particle model of an ion exchanger. The anion-exchange membrane MA-40 was chosen as a model. One surface of the membrane is in contact with a solution of NaOH, the other is insulated with sealant. Potentials were measured on both sides of the membrane using Ag / AgCl reference electrodes. The dynamics of changes in the potentials of membrane surfaces over time was recorded. The readings at intervals of 1 s were recorded with a digital multimeter UT70B in the EXCEL table. The change in membrane potentials over time reflects the process of establishing ion-exchange equilibrium at the membrane-solution interface. The mechanism of transfer processes across the interphase boundary is discussed.