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1、EnvironChemLett(2012)10:209–216DOI10.1007/s10311-011-0348-9REVIEWMagneticsemiconductornano-photocatalystsforthedegradationoforganicpollutantsShou-QingLiuReceived:12December2011/Accepted:15December2011/Publishedonline:28December2011ÓSpringer-Verlag2011AbstractPhotocatalyticdegradationoforga
2、nicpollu-reducingcarbondioxidetofuelmolecules,andthepho-tantsusingsuspendedanddispersedsemiconductornano-tocatalyticremovalofenvironmentalpollutants.Thepho-photocatalystsinwastewaterholdsuniqueadvantages,tocatalyticremovalordegradationofenvironmentalincludinghighactivity,lowcost,solarutili
3、zation,andorganicpollutantsinvolvesthephotocatalyticoxidizationcompletemineralization.Buttherecoveryandreuseofprocess.Thisprocess,similartoozonation,electrochemicalphotocatalystsaredifficultbecausethefineparticlesareoxidation,andFentonoxidation,isoneoftheadvancedeasilydischargedinwaters.Immo
4、bilizationofphotocata-oxidationprocessesthattreatsanddegradesrefractorylystsonsupportssuchasglassandzeoliteresultsinorganicpollutants.Themajoradvantagesofthephotocat-decreasedactivitiesduetothelowspecificareaandslowalyticoxidationprocessareasfollows.First,itoffersamasstransfer.Furthermore,a
5、largeamountofthephoto-goodroutefortheuseofbroadlyavailablerenewableandcatalystswillresultincoloredcontamination.Therefore,itpollution-freesolarenergy.Second,thisprocessdoesnotisnecessarytodevelopphotocatalystswithaseparationhavewastedisposalproblems.Third,thephotocatalyticfunctionforthereu
6、sableandcyclicapplication.Inordertoprocessisanon-selectiveoxidationprocessformosttakeadvantageofthehighactivityandenablethesemi-organicpollutants;therefore,itcandestroyavarietyofconductornano-photocatalyststobereused,theconceptofhazardousorganiccompoundsindifferentinfluents.magneticphotocat
7、alystswithseparationfunctionwasFourth,itcantransformorganicpollutantsintoinnocuousraised.Wereviewthephotocatalyticprinciple,structure,productsbyredoxreactionsandcompletethemineraliza-andapplicationofthemagneticsemiconductorcatalysts.tionoftheorganicpollutants.
