中孔活性炭的化学改性及其对pblt2gt的吸附性能研究

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1、南京理工大学硕士论文中孔活性炭的化学改性及其对PbZ十的吸附性能研究Abstr8CtMesoP0rousactivatedcarbon脚eAC)hasgoodadsorptionPrOpeniesforbeavymeta11。朋，阴ditsabundant业soporeProvidechanne1forliquidPrOPagate.In。记erto加ProvetheadsorptionPropertles，MeAC，vasmodifiedbyoxidation，sulfonationanda】kalization.A山扣rptionPrope

2、rtiesofPbz+ionwithIawandmodifiedMeAcwasexaminedus1ngstatic目匆rPtionmethod.TheregenerationofmodifiedMeACwasalsostodied.ThemodifiedMeACsamP1eswerecharacterizedbyBoe】llntitratlon，adsorptlonanddesorptionofnitrogenat77K，pores故distribution，fouriertr田”forminfraredspectroscoPy(FT-IR)

3、，laJ.anspectroscoPy，TG一D下AandXRD.TberesultsofBoehllltitrationshowedthattheacidicgrouPaJm0untofoxidatedMeAC(MeAC一0)助dsulfo拙atedMeAC伽eAC一0.huang)lncreased50o%即d600%respectively，comPared喇山ra，vMeAC.Asmodificatlonexlentofo劝datin氏sulfonatlonandalkalizationmcrea名ed，ailofthesPecifcs

4、uri池cearea，mesoPoreconteni，助daverageporediametr、甲eredecreased.Theraw城Ac，sandm记16“M认c，sstatic汕orptionorPbZ+认aqueoussolutionhadbeenstudled.TberesultsindicatedthatallthemodifiedMeAChadbeteradsorption哪即ityofPbZ+t坛InMeAC.whencowaslessthiml40mg·L”，阮聊libdumtimeoradsorptionofMeAC一0一

5、NaandMeAC一0七uang.Na、，asonlysmin.Theirequllibritnadso印tioncaPacitywas148.6m眺明dZ18.sm眺respectivelv，andenhanced500%幼d800%respectively，comParedwiththatofMeAC.Furthennore，theykePhighadsorPtlonvropertiesinawiderangeofPHval朋5(3一5.7)inthesolutionof70mg·L-l，anuthe外2+rerno耐eficiencywa

6、snearlylo%.Theads。印tionmechanismofMeAcforPbz+ismain叩onionexchange，andpartlyphysicaladso印ti0nofMeAc’ssuIface。认、entheMeAcadsorbedPbz+，比cmicaiadsorplion、vasdo而nant.T五elnfl此nceoftheacidcg旧uPwasgreaterthansPecifcsuri触ceareaon别JsorptioncaPacity.T七eacid一1ka1iregenerat1onmethodwasmu

7、cbbeterthanthedilute苗tric即idregenerat1onmethod.Andhigherc0ncentrat1onofnitric即idmaderegeneratloneasier.MeAc一。一aandMeAc一。一hUang.Naads0rbentssaturedwithPbz+wereregenera1edandthenwereu，月to引匕tlcadsorptionrepeatedly.Tberesultsindicatedads0rp11oneficiency茂achedabove80%阳d90%respect

8、ivelyafterthreecycles.南京理工大学硕士论文中孔活性炭的化学改性及其对PbZ十的吸附性能研究KeyW匕rds:MesoporouS