核壳结构锰氧化物-活性炭复合材料对室内甲醛的去除性能研究

20155May2015CHEMICALINDUSTＲYANDENGINEEＲING32Vol．323No．32015－03－30·1970。[e-mail]。doi10．13353/j．issn．1004．9533．2015．03．010/·1211*11．1000842．831511MnOx/AC0.1mg/m34.57h。60℃。X131.1A1004－9533201503－0074－05PerformanceofCore-ShellManganeseOxides/GranularActivatedCarbonCompositeMaterialsforIndoorFormaldehydeＲemovalYunusＲizwangul12LiJinge1ZhangPengyi1*WangMingxiao11．StateKeyJointLaboratoryofEnvironmentalSimulationandPollutionControlSchoolofEnvironmentTsinghuaUniversityBeijing100084China2．XinjiangZhongtaiChemicalCompanyXinjiang831511ChinaAbstractTodealwithindoorpollutioncausedbylow-levelformaldehydemanganeseoxidessupportedongranularactivatedcarbonMnOx/ACwerepreparedbyin-situreductionofpermanganatewithACatroomtemperature．ThecompositeMnOx/ACmaterialshowedmuchhighercapabilitytoremoveformalde-hydeabout4.5timeshigherthanthatofuncoatedgranularactivatedcarbon．MoreoverthedeactivatedMnOx/ACcanbeself-regeneratedafteritwaskeptatroomtemperaturefor7handcanberepeatedlyused．TheincreasedrelativehumiditywoulddecreasethepurificationcapabilityofMnOx/AC．Howeveritshowedstablecatalyticactivityforformaldehyderemovalat60°C．Keywordsformaldehydegranularactivatedcarbonmanganeseoxideindooraircompositematerial。、、、1-3。65%、、-4。、、323·/35-6。、。。。728。-9。Sekine、、、、、10。Chen11。Sidheswaran12。、。Zhang13。/14-15。/MnOx/AC0.1mg/m3。11.1MnOx/ACKMnO4MnOxMnOx/AC。160mL5mmol/LKMnO42.00gDx-096h105℃1hMnOx/AC。1.2SEMS-5500Hita-chiMnOx/ACMnMnICP-AESIＲISIntrepidⅡThermo。MnXXPSPHIQuanteraSXMULVAC-PHIMn3s。1.3MnOx/AC1、、。Φ6。GA-50L、GA-20B、、311133。1Fig．1Set-UpforevaluatingtheactivityforHCHOremoval0.5gMnOx/AC0.9cm1.8cm。40%0.1mg/m31L/min。GB18580220011。5720155=－×100%122.12。。MnOxMnOx60nm192～430nm。MnOxICP-AESMnOxMn1.1%50%Mn。2MnOxFig．2SEMimagesofactivatedcarbonbeforeandafterdepositionofMnOxXPSMn3。3MnOxMn3sFig．3XPSMn3sofMnOxsupportedonactivatedcarbon3MnOx/ACMn3sMn3s4.9eV。Chigane16MnO、Mn3O4、Mn2O3MnO2Mn3s5.79、5.50、5.414.78eVMn3.84。2.2MnOx/AC0.1mg/m3、40%、1L/min。4。4MnOx/ACFig．4HCHOremovalefficiencybyactivatedcarbonandMnOx/AC4150min7.2μg/g。MnOx/AC400min32.2μg/g4.5。5。5MnOx/ACFig．5EffectofrelativehumidityonHCHOremovalbyMnOx/AC67323·/5MnOx/AC400min。Li17。Zhou18MnOx→→。。MnOx/AC6。6MnOx/ACFig．6EffectoftemperatureonHCHOremovalbyMnOx/AC6。400min40℃MnOx/AC3h。MnOx/AC。40℃MnOx。60℃MnOx/AC80%。。2.3MnOx/ACMnOx/AC、。7MnOx/AC7h。MnOx/ACMnOx/AC0.5L/min。96%MnOx/AC。MnOx/AC。7MnOx/AC7hFig．7ＲegeneratedactivityofdeactivatedMnOx/ACafterkeptatroomtemperaturefor7h3/MnOx/AC。0.1mg/m3MnOx/AC4.57h。40～60℃MnOx/AC60℃。。1WolkoffPNielsenGD．Non-Cancereffectsofformal-dehydeandrelevanceforsettinganindoorairguidelineJ．EnvironmentInternational201036788－7992InternationalAgencyforＲesearchonCancerIAＲC．7720155Formaldehyde2-butoxyethanoland1-tert-butoxypro-panol-2-ol．881-325．MonographsontheevaluationofcarcinogenicriskstohumansS．LyonWorldHealthOrganization20063WorldHealthOrganization．Formaldehyde．Concisein-ternationalchemicalassessmentdocumentS．Gene-va20024TangXBaiYDuongAetal．FormaldehydeinChi-naProductionconsumptionexposurelevelsandhealtheffectsJ．EnvironmentInternational2009351210－12245WorldHealthOrganization．WHOguidelinesforindoorairqualitySelectedpollutantsS．Denmark20066SalthammerTMenteseSMarutzkyＲ．FormaldehydeintheindoorEnvironmentJ．ChemicalＲeviews201011042536－25727TanadaSKawasakiNNakamuraTetal．ＲemovalofformaldehydebyactivatedcarbonscontainingaminogroupsJ．JournalofColloidandInterfaceScience1999214106－1088ShinSKSongJH．Modelingandsimulationsoftheremovalofformaldehydeusingsilvernano-particlesatta-chedtogranularactivatedcarbonJ．JournalofHaz-ardousMaterials2011194385－3929．J．20082337－341JiangLiangyanZhouShixueWangWenchaoetal．AdsorptionofformaldehydebyactivatedcarbonloadedwithmanganeseoxidesJ．ActaScientiaeCircumstanti-ae20082337－341inChinese10SekineY．OxidativedecompositionofformaldehydebymetaloxidesatroomtemperatureJ．AtmosphericEn-vironment2002365543－554711ChenTDouHLiXetal．TunnelstructureeffectofmanganeseoxidesincompleteoxidationofformaldehydeJ．MicroporousandMesoporousMaterials2009122270－27412SidheswaranMADestaillatsHSullivanDPetal．Quantitativeroom-temperaturemineralizationofairborneformaldehydeusingmanganeseoxidecatalystsJ．Ap-pliedCatalysisBEnvironmental201110734－4113ZhangXSunXZhangHetal．Developmentofredoxdepositionofbirnessite-typeMnO2onactivatedcarbonashigh-performanceelectrodeforhybridsupercapacitorsJ．MaterialsChemistryandPhysics2012137290－29614JiangCZhangPZhangBetal．Facilesynthesisofactivatedcarbon-supportedporousmanganeseoxideviainsitureductionofpermanganateforozonedecompositionJ．OzneScience＆EngineeringTheJournaloftheInternationalOzoneAssociation201335308－31515WangMZhangPLiJetal．TheeffectsofMnload-ingonthestructureandozonedecompositionactivityofMnOxsupportedonactivatedcarbonJ．ChineseJour-nalofCatalysis201435335－34116ChianeMIshikawaM．Manganeseoxidethinfilmpreparationbypotentiostaticelectrolysesandelectro-chromismJ．JournaloftheElectrochemicalSociety200014762246－225117LiJLiZLiuBetal．EffectofrelativehumidityonadsorptionofformaldehydeonmodifiedactivatedcarbonsJ．ChineseJournalofChemicalEngineering2008166871－87518ZhouLHeJZhangJetal．