Biosorption of Heavy Metals from Aqueous Solutions by Parkia biglobosa Biomass: Equilibrium, Kinetics, and Thermodynamic Studies

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dc.contributor.authorOmorogie, Martins
dc.date.accessioned2022-02-02T14:11:59Z
dc.date.available2022-02-02T14:11:59Z
dc.date.issued2015-09-25
dc.description.abstractThe adsorption capacities of Parkia biglobosa chaff biomass (PBC) and Parkia biglobosa pulp biomass (PBP) for Cr(III), Cd(II), Ni(II), and Pb(II) ions were studied. Experimental data suggested the highest monolayer sorption capacities of PBC and PBP, at equilibrium to be 170.07 mg/g at pH 7.0 and 324.68 mg/g at pH 6.0, for the uptake of Cr(III) ions, respectively. The minimum adsorption capacities obtained by PBC and PBP were 60.72 mg/g for Ni(II) and 16.70 mg/g for Cd(II) at pH value of 2.0, respectively. Pseudo second order kinetic model fits the all experimental data best, suggesting that the entire adsorption processes might have occurred by chemisorption mechanism. Thermodynamic data indicated that the adsorption of various metal ions by PBC and PBP was endothermic, with increase in disorderliness of the system. The Gibb’s free energy values for the uptake of Cr(III), Cd(II) and Ni(II) ions by PBC indicated the spontaneity of the processes. Moreover, the Gibb’s free energy values for the uptake of Pb(II) ion by PBC depicted the non spontaneity of the processes. Also, Gibb’s free energy values for the adsorption of various metal ions by PBP depicted the spontaneity of the processes.en_US
dc.identifier.citation26en_US
dc.identifier.otherhttps://doi.org/10.1002/ep.12175
dc.identifier.urihttp://dspace.run.edu.ng:8080/jspui/handle/123456789/977
dc.language.isoenen_US
dc.publisherJohn Wileyen_US
dc.subjectHeavy Metalsen_US
dc.subjectBiosorptionen_US
dc.subjectIsothermen_US
dc.subjectKineticsen_US
dc.subjectThermodynamicsen_US
dc.titleBiosorption of Heavy Metals from Aqueous Solutions by Parkia biglobosa Biomass: Equilibrium, Kinetics, and Thermodynamic Studiesen_US
dc.typeArticleen_US
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Environmental Progress & Sustainable Energy, 2015, 34(6), 1694-1704.
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