中孔竹活性炭的制備及其對葛根素吸附性能的研究.pdf

1、武漢工程大學(xué)碩士學(xué)位論文中孔竹活性炭的制備及其對葛根素吸附性能的研究姓名：鮑秀婷申請學(xué)位級別：碩士專業(yè)：化學(xué)工藝指導(dǎo)教師：郭嘉20080501AbstractAbstractInthisstudybamboo，areproducibleresource，whichisabundantlyavailableinChina，wasusedasthestartingmaterialforthepreparationofmesoporousac

2、tivatedcarbonsItwasfoundthatthesurfaceofbamboousedinthisstudywasplateanddense，withoutanycracksorporesbeingobservedBamboowasmadeupofcellulose，semi—cellulose，andlignin，andthesurfacefunctionalgroupsincludedhydroxideradicals

3、andcarbonylgroupsCarbonizationwascarriedoutintwoways：1)ordinaryprocesswithN2asthepurgegas；2)carbonizationbyvacuumTheeffectsofcarbonizationtemperatureandtimeontheyield，BETsurfacearea，andthecapacityforde—colorwereinvestiga

4、tedTheconsequentC02activationWascarriedouttoformthemesoporeswithproperporesizedistributionTheexperimentalresultsshowedthattheBETsurfaceareaoftheactivatedcarbonpreparedbyC02activationwasover7500m2／g，andtheporesizedistribu

5、tionwasnarrow(1essthan100nm)While，forvacuumcarbonizationtheBETsurfaceareaoftheactivatedcarbonpreparedbyC02activationwasabout5002mZ／g，butwithlargerporesizesComparedtotraditionalmethod，vacuumcarbonizationissimpleandenergys

6、avingThepreparedsampleswerecharacterizedbySEM，TEM，N2adsorption，XPSandFTIRThetexturalstructure，BETsurfaceareaandporesizedistribution，andthesurfacechemistrywereanalyzedItwasfoundthattherewereporestructurenetworkswithintheb

7、amboobasedactivatedcarbon，andtheporeswereaccessiblewithmanymesopoesTheactivatedtemperatureandtimeontheperformanceofactivatedcarbonsweremainfactorsinfluencingtheadsorptivecapacityTheactivatedat7000C，4handwithBETsurfaceare