Development of metal–ligand ion-exchange membranes functionalized with crown ether–ionic liquids for selective Li<sup>+</sup>/Mg<sup>2+</sup> separation
Ning Zhang, Yuan Li, Wei Zhang, Yanling Liu, Yongjian Pei, Jie Zhao, Ping Ning, Kai Li
Abstract
A crown ether–ionic liquid functionalized ion-exchange membrane was developed for selective Li + /Mg 2+ separation in electrodialysis, achieving a Li + /Mg 2+ selectivity of 10.45 at pH 7.5 with enhanced permeability, pH responsiveness, and stability.
Topics & Concepts
Crown etherMembraneIonic liquidIonic bondingLigand (biochemistry)ChemistryMetalIon exchangeInorganic chemistryEtherIonPolymer chemistryOrganic chemistryCatalysisReceptorBiochemistryExtraction and Separation ProcessesChemical Synthesis and CharacterizationMembrane-based Ion Separation Techniques