A new preparation process of coal-based magnetically activated carbon

(整期优先)网络出版时间:2014-02-12
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Fe/C-basedmagneticallyactivatedcarbon(MAC)wasobtainedbycarbonizingandactivatingitsprecursor,thatwaspreparedbyco-precipitationofanthracitecoalimpregnatedinferricchloridesolution.TheeffectoftheconcentrationsofFeCl3andpHofsolutiononBETsurfacearea,porevolumeandmagneticpropertiesoftheMACwasstudiedbyBETN2adsorptionandVSMmethod.TheresultsindicatedthatthemagnetizationofMACgraduallyincreaseswithincreasingconcentrationofFeCl3andpHvalueofsolution,andBETsurfaceareawasinclinedtofluctuation.ThelargestBETsurfaceareaandmagnetizationofMACwere1327.5m2/gand35.56emu/g,respectively.TheformofmagneticmatterinthemagneticallyactivatedcarbonwasmainlyFe3CbyX-raypowderdiffraction(XRD)andmagneticattractiontest.