nthispresentwork,acommercialcoffeew

nthispresentwork,acommercialcoffeewastewastreatedusingcationicsurfactantscetyltrimethylammo-niumbromide(CTAB)orcetylpyridiniumchloride(CPC)toenhanceitsadsorptioncapacityfortheremovalofmethylorangedye(MO,anionicdye)fromaqueoussolutions.AseriesofexperimentswereundertakeninanagitatedbatchtoassesstheeffectofkeyparameterssuchaspH,contacttime,adsorbentdoseandionicstrength.Maximummethylorangedyeadsorptionontomodifiedcommercialcoffeewaste(MCWs)wasob-servedatpH3.5with0.1g/50mlofadsorbentdose.Modelingstudyshowsthatpseudo-second-orderkineticmodelandLangmuiradsorptionisothermmodelprovidebetterfitnesstotheexperimentaldata.Themaxi-mumadsorptioncapacity(62.5mg/gat25°C)wasobtainedwithCPCmodifiedcommercialcoffeewaste.Cal-culatedthermodynamicparametersG0,H0andS0showedthatadsorptionisspontaneousandexother-mic.TheFT-IRanalysisshowedthatpossiblemechanismscontrollingMOadsorptionontheMCWsincludedelectrostaticinteractionsandhydrophobicinteraction.

ผลลัพธ์ (ไทย) 2:

nthispresentwork, acommercialcoffeewastewastreatedusingcationicsurfactantscetyltrimethylammo-niumbromide (CTAB) orcetylpyridiniumchloride (CPC) toenhanceitsadsorptioncapacityfortheremovalofmethylorangedye (MO, anionicdye) fromaqueoussolutions.AseriesofexperimentswereundertakeninanagitatedbatchtoassesstheeffectofkeyparameterssuchaspH, contacttime, adsorbentdoseandionicstrength.Maximummethylorangedyeadsorptionontomodifiedcommercialcoffeewaste (MCWs) wasob-servedatpH3.5with0.1g / 50mlofadsorbentdose.Modelingstudyshowsthatpseudo วินาที orderkineticmodelandLangmuiradsorptionisothermmodelprovidebetterfitnesstotheexperimentaldata.Themaxi-mumadsorptioncapacity ( 62.5mg / gat25 ° C) wasobtainedwithCPCmodifiedcommercialcoffeewaste.Cal-culatedthermodynamicparameters? G0? H0and? S0showedthatadsorptionisspontaneousandexother-mic.TheFT-IRanalysisshowedthatpossiblemechanismscontrollingMOadsorptionontheMCWsincludedelectrostaticinteractionsandhydrophobicinteraction