Sorption Studies Of Methyl Red Dye Removal Using Lemon Grass (Cymbopogon citratus)

Ahmad, Mohd Azmier and Ahmed, Nur‘Adilah Binti and Adegoke, Kayode Adesina and Bello, O.S. (2019) Sorption Studies Of Methyl Red Dye Removal Using Lemon Grass (Cymbopogon citratus). Chemical Data Collections, 22. ISSN 2405-8300

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Abstract

Lemongrassleafbasedactivatedcarbon(LGLAC)waspreparedusingphysico-chemicalmethodsformethylred(MR)dyeremovalfromaqueoussolutions.Thesurfacechem-istryofLGLACbeforeadsorptionrevealedthepresenceofdifferentfunctionalgroups:O-H,C-H,C=O,CH3,C=C,N-O,C-OandC-Nwhichwereshiftedaftermethylreddyead-sorption.Brunauer-Emmett-Tellersurfaceandmesoporeareasare836.04m2/gand598.604m2/g,whereas,theaverageporediameterandtotalporevolumeofLGLACare3.62nmand0.472cm3/grespectively.Batchadsorptionwasstudiedusingdifferentparameters:initialdyeconcentrations(25–500mg/L),contacttime(0–24h),solutiontemperature(30–60°C)andsolutionpH(2–12).Adsorptionofmethylreddyewasobservedtoincreasewithincreaseininitialdyeconcentration,contacttimeandsolutiontemperature.Themethylreddyeadsorptionuptakeandpercentageremovalatequilibriumshowedthatthead-sorptionprocessismajorlydependentontheinitialdyeconcentration.Optimumpercent-ageofmethylreddyeremovedwasobservedatpH2.TheadsorptionprocessofmethylreddyeontoLGLACwasendothermicinnature.Thermodynamicparameters,includ-ingentropychange(�S0),enthalpychange(�H0),andGibbsfreeenergychange(�G0)wereevaluated.Theadsorptionprocesswasendothermicandthemechanismfollowedaphysisorptionprocess

Item Type:	Article
Subjects:	T Technology > TP Chemical technology
Depositing User:	Mr DIGITAL CONTENT CREATOR LMU
Date Deposited:	17 Sep 2019 15:22
Last Modified:	17 Sep 2019 15:22
URI:	https://eprints.lmu.edu.ng/id/eprint/2233

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