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阳离子交换树脂的催化氧化裂解 Title:CatalyticOxidativeDegradationofOrganicPollutantsbyCationExchangeResins Abstract: Withtheincreasingconcernaboutenvironmentalpollution,theremovaloforganicpollutantsfromwatersourceshasbecomeanimportantresearchtopic.Cationexchangeresinshaveshownpromisingpotentialinthecatalyticoxidativedegradationoforganicpollutants.Thispaperaimstoreviewtherecentadvancesintheapplicationofcationexchangeresinsfortheremovaloforganicpollutantsthroughoxidativedegradationprocesses.Themechanismsinvolvedinthecatalyticoxidativedegradationoforganicpollutantswillbediscussed,alongwiththefactorsinfluencingtheperformanceofcationexchangeresinsinthisprocess.Additionally,thechallengesandfutureprospectsofutilizingcationexchangeresinsforthetreatmentoforganicpollutantswillbeaddressed. 1.Introduction Thepresenceoforganicpollutantsinwatersourcesposesseriousthreatstohumanhealthandecosystemintegrity.Traditionalwatertreatmentmethods,suchasprecipitation,filtration,andadsorption,areoftenineffectiveinremovingcertaintypesoforganicpollutants.Therefore,thedevelopmentofefficientandsustainabletechniquesfortheremovaloforganicpollutantsisofutmostimportance. 2.CationExchangeResins:StructureandProperties Cationexchangeresinsareporouspolymersthatcontainexchangeablecations.Theypossessahighionexchangecapacity,whichenablesthemtoselectivelyadsorbandexchangecationsinsolution.Thestructuralpropertiesofcationexchangeresins,includingsurfacearea,poresize,andfunctionalgroups,canbetailoredtoenhancetheircatalyticactivityandselectivity. 3.MechanismsofCatalyticOxidativeDegradation Catalyticoxidativedegradationinvolvestheconversionoforganicpollutantsintolessharmfulsubstancesthroughtheuseofoxidizingagents.Cationexchangeresinsactascatalystsbyprovidingactivesitesfortheadsorptionoforganicpollutantsandfacilitatingredoxreactions.Themechanismsofcatalyticoxidativedegradationmayvarydependingonthetypeoforganicpollutantandtheoxidizingagentused,butcommonlyinvolvethegenerationofreactiveoxygenspecies(ROS)thatattacktheorganicpollutant