Salt partitioning and transport in polyamide reverse osmosis membranes at ultrahigh pressures
Pataroque K, Wu J, He J, Fan H, Mahajan S, Guo K, Le J, Au K, Wang L, Li Y, Hoek E, Elimelech M. Salt partitioning and transport in polyamide reverse osmosis membranes at ultrahigh pressures. Journal Of Membrane Science Letters 2024, 4: 100079. DOI: 10.1016/j.memlet.2024.100079.Peer-Reviewed Original ResearchSalt permeanceSalt partition coefficientReverse osmosisPolyamide reverse osmosis membranesAffecting membrane performancePolyamide layer thicknessFeed salt concentrationReverse osmosis membranesQuartz crystal microbalanceDead-end cellStructure-performance relationshipRO membranesMembrane performancePolyamide layerOsmosis membranesWater transport mechanismFeed salinityOsmotic deswellingFrictional interactionPore sizeFeed concentrationNon-equilibrium molecular dynamics simulationsLayer thicknessPermeanceCrystal microbalanceMolecular simulations of organic solvent transport in dense polymer membranes: Solution-diffusion or pore-flow mechanism?
He J, Fan H, Elimelech M, Li Y. Molecular simulations of organic solvent transport in dense polymer membranes: Solution-diffusion or pore-flow mechanism? Journal Of Membrane Science 2024, 708: 123055. DOI: 10.1016/j.memsci.2024.123055.Peer-Reviewed Original ResearchDense polymer membranesPolymer membranesOrganic solventsSolution-diffusion modelHigh-performance polymer membranesSolvent transportFractional free volumeMolecular-level guidanceOrganic solvent nanofiltrationMolecular dynamics simulationsPore flow mechanismNon-equilibrium molecular dynamics simulationsMembrane pore sizeSolvent sizeSolvent permeanceSolvent nanofiltrationSeparation applicationsTransport mechanisms of waterMolecular simulationsFree volumeDynamics simulationsWater transport mechanismSolventReverse osmosisSolution-diffusionThe solution-diffusion model for water transport in reverse osmosis: What went wrong?
Fan H, Heiranian M, Elimelech M. The solution-diffusion model for water transport in reverse osmosis: What went wrong? Desalination 2024, 580: 117575. DOI: 10.1016/j.desal.2024.117575.Peer-Reviewed Original ResearchSolution-diffusion modelRO membranesReverse osmosisWater transport mechanismPore flow modelDesalination membranesDesalination technologiesFrictional interactionTransport mechanismWater transportConcentration gradient of waterFree volumeMembrane poresEnergy efficiencyOsmosisLow costPressure gradientState-of-the-artTheoretical findingsWater flowState-of-the-art desalination technologiesConcentration gradientPore