Recent advances in utilization of graphene for filtration and desalination of water A review

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1、Desalination365(2015)389–397ContentslistsavailableatScienceDirectDesalinationjournalhomepage:www.elsevier.com/locate/desalRecentadvancesinutilizationofgrapheneforfiltrationanddesalinationofwater:Areviewaaab,cca,⁎ArashAghigh,VahidAlizadeh,H.Y.Wong,Md.ShabiulIslam,Nows

2、hadAmin,MukterZamanaFacultyofEngineering(FOE),MultimediaUniversity,63100Cyberjaya,MalaysiabInstituteofMicroengineeringandNanoelectronics(IMEN),UKM,43600,Bangi,Selangor,MalaysiacUniversitiKebangsaanMalaysia(UKM),43600,Bangi,Selangor,MalaysiaHIGHLIGHTS•Grapheneshowsgo

3、odpotentialforwaterdesalinationandfiltrationsystems.•NGmembranesshowhighsaltrejectionandfeasibilityinROapplications.•CDIisheavilymaterialdependentbutfeasibleinwaterdesalination.•GOsievingisanovelmethodandneedsfurtherimprovementfordesalination.articleinfoabstractArtic

4、lehistory:Waterasabasicnecessityisaninfluentialfactorinoureverydaylivesbutwaterpollution,urbanization,andhugeReceived15December2014populationgrowthhasledhumankindtothebrinkofwaterresourcescarcity.Toaddressthisissue,waterfiltra-Receivedinrevisedform13March2015tionaswel

5、lasdesalinationgotenormousinterestbytheresearchcommunity.Recentlygraphene,anewtwoAccepted14March2015dimensionalmaterialwithexceptionalcapabilitiesandcharacteristics,hasbecomeappositeinthefieldofAvailableonlinexxxxwaterfiltrationanddesalination.Thispaperreviewstherecen

6、tprogressinGrapheneresearchforwaterdesali-nationusingnovelmethodssuchasNanoporousGraphene(NG)sheetsaswellasCapacitiveDeionization(CDI)Keywords:Graphenemethod.AmongwhichmostpromisinguniformNGsheetscanbeusedforwaterfiltrationanddesalinationataWaterdesalinationremovalef

7、ficiencyof33–100%dependingontheporesizeaswellastheappliedpressure[1]andhasawaterflow2Nanoporousgraphenerateof10–100L/cm/day/MPa[1]andbyadjustingtheporesize,differentmineralfiltrationscantakeplace[1].CDIThemaindrawbackwhichlimitsthewidespreadutilizationofNGisthemechanic

8、alstabilityofNGsheetsastheNanoporesporenumberincreasessincewaterpermeabilityisdirectlyproportionaltothenumberofpores,poredistributionRGOas