以木素为基材制备吸附材料与性能的的研究

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1、一．广东工业大学硕士学位论文基蓝的平衡吸附量逐渐增大，当浓度为2500mg／L，达平衡时的吸附量为407．53mg／L，吸附符合Langmuir吸附等温线。．关键词：木镁；交联；活化；亚甲基蓝；吸附ⅡAbstractThereisalargenumberoflignin．Ligninisacheap，environmentalfi-iendlyandrenewablenaturalresource．Industrialligninmainlycomesfrompulpandpapermakingindustry．However,partsofindustriallignin

2、weredirectlydischargedwithoutanytreatment，whichcouldnotonlywasteresourcesbutalsopollutetheenvironment．Adsorbentsareusedinmanyareas，includingmaterialpurificationandseparation,environmentalcontrol，watertreatment，chromatography,organicsynthesis，separationandpurificationofbiologicalmedicineand

3、drugs．Becauseofaseriesofactivegroupscontainedinligninmolecules，ligninhasacertainadsorption．Therefore，itcanbemadeinmultifunctional，highperformancelignin-basedadsorbentthroughappropriatemodificationpolymerization．Thisnotonlysolvestheproblemofenvironmentalpollution,butalsoitwillachievethepurp

4、oseofdealingwithwastebywaste．Inthispaper,magnesiumlignosulfonatewasusedtopreparelignin-basedadsorbentwithsolidification,activationmethods．Thestaticadsorptionexperimentswereappliedtomeasuretheadsorptionperformanceoflignin—basedadsorbentformethyleneblue，andthestructureofadsorbentwascharacter

5、izedbythermogravimetricanalysis，FTIRandBETmethods．Theconditionsofcross—l酞ingreactionweredeterminedbyorthogonal，singlefactorexperiments．Thedegreeofswelling，copperremovalrateofpolymer,whichwaspreparedunderconditionsofl00℃ofreactiontemperature．60％ofmagnesiumlignosulfonateconcentration,4moFLof

6、acidityand10％oftheamountofformaldehyde，were267．37％，62．72％，respectively．Theadsorptioncapacityofcarbonaceoussorbentformethy’leneblue，iodineandsurfacearea,whichwaspreparedwithcross—linkedproductandphosphoricacidunderconditionsof400。Cofactivationtemperature，2ofimpregnationratioand2hourofactiva

7、tiontime，were142．5mg／g，946．43mg／g，642．38mZ／g，respectively．ThiSisbetterthantheadsorptionperformanceofcarbonizedresinofligninbeingpreparedbyZhuJianhua．TheresuRsofthermogravimetricanalysisshowthatmagnesiumlignosulfonateis111amixtureconsistedofseriesofdegradationp