In this work, we tuned the ion selectivity of a polyelectrolyte multilayer (PEM)-coated, cation-exchange membrane (CMX) in capacitive deionization (MCDI) process by carefully studying different operational modes, namely constant voltage (CV) and current (CC). The monovalent cation its time-dependent behavior were monitored at values. Upon optimizing density (10 A/m2) number bilayers (5.5) on CM...

In the present study, Composite materials based on perfluorinated cation-exchange membrane incorporating particles of Zirconium and Nafion is synthesized .With this membrane the performance of the electrolysis cell improved considerably at room temperature and atmospheric pressure. In addition, by using catalysts and membranes, the performance of this Composite membrane is studied by varying vo...

abstract cation exchange capacity (cec) is an important characteristic of soil in terms of nutrient and water holding capacities and contamination management. measurement of cec is laborious and time-consuming. therefore, cec estimation through other easily - measured properties is desirable. in this study, ptfs for estimation of cation exchange capacity from basic soil properties such as parti...

Monovalent selective cation exchange membranes could play an important role in balancing the K + /Na ratio agricultural feed streams to prevent toxic effects of excess Na plant and soil systems, especially greenhouses dry areas. A polyelectrolyte complex polystyrenesulfonate polyvinylamine monomer 1:2.5 is hot-pressed form a dense saloplastic. The plastic takes up 42% w/w water when equilibrate...

The kinetic transport behaviors in near interface of the membranes were studied using commercial anion and cation exchange membrane and charge mosaic membrane. From chronopotentiometry above the limiting current density, the transition time was estimated. The thickness of boundary layer was derived with conjunction with the conventional limiting current density and the transition time from stea...

in this study, polystyrene ethylene butylene polystyrene (psebs) was functionalized to prepare mono and bipolar ion exchange membranes. in the case of the bipolar membrane, platinum was used as the intermediate layer. nacl solution of concentration ranging from 5 g/l to 25 g/l was used as the feed solution. a commercially procured ion exchange membrane made of polystyrene divinyl benzene was al...