Designing membranes with specific binding sites for selective ion separations
Violet C, Ball A, Heiranian M, Villalobos L, Zhang J, Uralcan B, Kulik H, Haji-Akbari A, Elimelech M. Designing membranes with specific binding sites for selective ion separations. Nature Water 2024, 2: 706-718. DOI: 10.1038/s44221-024-00279-6.Peer-Reviewed Original ResearchMembrane nanochannelsFunctional groupsCovalent organic frameworksMetal-organic frameworksSelective ion separationIon binding energiesMembrane material designSelective ion transportIon binding affinityEnergy storage technologiesOrganic frameworksIon separationSynthetic methodNanostructured materialsBinding sitesBinding energyMaterial designDesign membranesDrug discoveryAngstrom scaleChemical interactionIonsChemical featuresNanochannelsIon transportExtended Donnan model for ion partitioning in charged nanopores: Application to ion-exchange membranes
Wang R, Biesheuvel P, Elimelech M. Extended Donnan model for ion partitioning in charged nanopores: Application to ion-exchange membranes. Journal Of Membrane Science 2024, 705: 122921. DOI: 10.1016/j.memsci.2024.122921.Peer-Reviewed Original ResearchIon-exchange membranesExchange membraneInteraction of ionsCoulomb interaction of ionsIon partitioningCharged pore wallsElectrostatic modelChemical potential of ionsArrangement of ionsPore solutionPotentials of ionsDonnan modelDonnan equationPore sizeCylindrical poresPore wallsDistribution of ionsPolymer chargeEffect of ionsAqueous solutionPoreIon activity coefficientsSalt concentrationIonsGeometric factorsInhibition of silica scaling with functional polymers: Role of ionic strength, divalent ions, and temperature
Kaneda M, Cao T, Dong D, Zhang X, Chen Y, Zhang J, Bryantsev V, Zhong M, Elimelech M. Inhibition of silica scaling with functional polymers: Role of ionic strength, divalent ions, and temperature. Water Research 2024, 258: 121705. PMID: 38776744, DOI: 10.1016/j.watres.2024.121705.Peer-Reviewed Original ResearchInhibition efficiencySilicic acid solutionAcid solutionPolymerization inhibitorIonic strengthMolecular dynamics simulationsDivalent ionsFunctional polymersAmmonium groupsSodium ionsInorganic cationsDynamics simulationsDivalent inorganic cationsInhibition performanceIonsSolution conditionsCationsPolymerSolution temperatureEffective stabilizationElevated temperaturesSilicaSilica scale formationSilica scaleSaline industrial wastewater