2024
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 microbalanceMore resilient polyester membranes for high-performance reverse osmosis desalination
Yao Y, Zhang P, Sun F, Zhang W, Li M, Sha G, Teng L, Wang X, Huo M, DuChanois R, Cao T, Boo C, Zhang X, Elimelech M. More resilient polyester membranes for high-performance reverse osmosis desalination. Science 2024, 384: 333-338. PMID: 38669571, DOI: 10.1126/science.adk0632.Peer-Reviewed Original ResearchThin-film composite reverse osmosis membranesComposite reverse osmosis membranesReverse osmosis membranesOsmosis membranesPolyamide membranesPoor chlorine resistanceExcellent water permeabilityReverse osmosis desalinationWater-salt selectivityWater permeabilityPolyester membraneBoron rejectionSalt rejectionFouling propensityTrimesoyl chlorideOsmosis desalinationInterfacial polymerizationHigh rejectionLow-energy surfacesPolyamide filmsChlorine resistancePrevent foulingWater purificationDesalinationFouling
2023
Orientation matters: Measuring the correct surface of polyamide membranes with quartz crystal microbalance
Villalobos L, Pataroque K, Pan W, Cao T, Kaneda M, Violet C, Ritt C, Hoek E, Elimelech M. Orientation matters: Measuring the correct surface of polyamide membranes with quartz crystal microbalance. Journal Of Membrane Science Letters 2023, 3: 100048. DOI: 10.1016/j.memlet.2023.100048.Peer-Reviewed Original ResearchPolyamide layerRO membranesFront surfacePolyamide selective layerPolysulfone porous supportPolyamide reverse osmosis membraneCommercial RO membranesPolyamide active layerReverse osmosis membranesPolyamide RO membranesSelective layerOrganic foulingOsmosis membranesActive layerPolyamide membranesBack surfacePorous supportQCM sensorOpposite surfaceQuartz crystal microbalance measurementsLayerQuartz crystal microbalanceSurface orientationCrystal microbalance measurementsSurface