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《Preparation and characterization of porous granular ceramic containing》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、JournalofHazardousMaterials186(2011)863–868ContentslistsavailableatScienceDirectJournalofHazardousMaterialsjournalhomepage:www.elsevier.com/locate/jhazmatPreparationandcharacterizationofporousgranularceramiccontainingdispersedaluminumandironoxidesasadsorbentsfor?uorideremovalfromaqueoussoluti
2、onNanChena,b,ZhenyaZhangb,ChuanpingFenga,?,DiruiZhub,c,YingnanYangb,NorioSugiurabaSchoolofWaterResourcesandEnvironment,ChinaUniversityofGeosciences(Beijing),Beijing100083,ChinabGraduateSchoolofLifeandEnvironmentalSciences,UniversityofTsukuba,Tsukuba305-8572,JapancSchoolofLifeSciences,YunNanUn
3、iversity,Yunnan650091,ChinaarticleinfoabstractArticlehistory:PorousgranularceramicadsorbentscontainingdispersedaluminumandironoxidesweresynthesizedReceived20August2010byimpregnatingwithsaltsolutionsfollowedbyprecipitationat600?C.InthepresentworkdetailedReceivedinrevisedform27October2010studie
4、swerecarriedouttoinvestigatetheeffectofcontacttime,adsorbentdose,initialsolutionpHAccepted20November2010andco-existinganions.CharacterizationstudiesontheadsorbentbySEM,XRD,EDS,andBETanalysisAvailableonline26November2010werecarriedouttoclarifytheadsorptionmechanism.Theadsorbentsweresphereinsha
5、pe,2–3mminparticlesize,highlyporousandshowedspeci?csurfaceareaof50.69sqm/g.The?uorideadsorptionKeywords:capacityofpreparedadsorbentwas1.79mg/g,andthemaximum?uorideremovalwasobtainedatpHPorousgranularceramic6.BoththeLangmuirandFreundlichisothermmodelswerefoundtorepresentthemeasuredadsorptionFl
6、uorideremovalAdsorptionisothermsdatawell.Theexperimentaldatawerewellexplainedwithpseudo-second-orderkineticmodel.ResultsAdsorptionkineticsfromthisstudydemonstratedpotentialutilityofAl/Fedispersedinporousgranularceramicsthatcouldbedevelopedintoaviabletechnologyfor?uorideremovalfromaqueoussolut
7、ion.?2010ElsevierB.V.Allrightsreserved.1.Introductionquantity[18].Severaladsorbentsweretriedfortheremovalof?uoridefromaqueoussolutionnamelyactivatedalumina,redFluorideelementisessentialaswellasdetrimentalforthemud,chitosanbeads,carbonaceousma
