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Biosorption of Pb(II) and Cr(III) from aqueous solution by lichen (Parmelina tiliaceae) biomass.
Bioresour Technol. 2008 May; 99(8):2972-80.BT

Abstract

The biosorption characteristics of Pb(II) and Cr(III) ions from aqueous solution using the lichen (Parmelina tiliaceae) biomass were investigated. Optimum biosorption conditions were determined as a function of pH, biomass dosage, contact time, and temperature. Langmuir, Freundlich and Dubinin-Radushkevich (D-R) models were applied to describe the biosorption isotherm of the metal ions by P. tiliaceae biomass. Langmuir model fitted the equilibrium data better than the Freundlich isotherm. The monolayer biosorption capacity of P. tiliaceae biomass for Pb(II) and Cr(III) ions was found to be 75.8 mg/g and 52.1mg/g, respectively. From the D-R isotherm model, the mean free energy was calculated as 12.7 kJ/mol for Pb(II) biosorption and 10.5 kJ/mol for Cr(III) biosorption, indicating that the biosorption of both metal ions was taken place by chemical ion-exchange. The calculated thermodynamic parameters (delta G degrees , delta H degrees and delta S degrees) showed that the biosorption of Pb(II) and Cr(III) ions onto P. tiliaceae biomass was feasible, spontaneous and exothermic under examined conditions. Experimental data were also tested in terms of biosorption kinetics using pseudo-first-order and pseudo-second-order kinetic models. The results showed that the biosorption processes of both metal ions followed well pseudo-second-order kinetics.

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Authors+Show Affiliations

Uluozlu OD
Department of Chemistry, Gaziosmanpasa University, 60250 Tokat, Turkey.
Sari A
No affiliation info available
Tuzen M
No affiliation info available
Soylak M
No affiliation info available

MeSH

AdsorptionBiomassChromiumKineticsLeadLichensMicronutrientsSolutionsSpectroscopy, Fourier Transform InfraredWood

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17714944

Citation

Uluozlu, Ozgür Dogan, et al. "Biosorption of Pb(II) and Cr(III) From Aqueous Solution By Lichen (Parmelina Tiliaceae) Biomass." Bioresource Technology, vol. 99, no. 8, 2008, pp. 2972-80.
Uluozlu OD, Sari A, Tuzen M, et al. Biosorption of Pb(II) and Cr(III) from aqueous solution by lichen (Parmelina tiliaceae) biomass. Bioresour Technol. 2008;99(8):2972-80.
Uluozlu, O. D., Sari, A., Tuzen, M., & Soylak, M. (2008). Biosorption of Pb(II) and Cr(III) from aqueous solution by lichen (Parmelina tiliaceae) biomass. Bioresource Technology, 99(8), 2972-80.
Uluozlu OD, et al. Biosorption of Pb(II) and Cr(III) From Aqueous Solution By Lichen (Parmelina Tiliaceae) Biomass. Bioresour Technol. 2008;99(8):2972-80. PubMed PMID: 17714944.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Biosorption of Pb(II) and Cr(III) from aqueous solution by lichen (Parmelina tiliaceae) biomass. AU - Uluozlu,Ozgür Dogan, AU - Sari,Ahmet, AU - Tuzen,Mustafa, AU - Soylak,Mustafa, Y1 - 2007/08/21/ PY - 2007/05/12/received PY - 2007/06/04/revised PY - 2007/06/05/accepted PY - 2007/8/24/pubmed PY - 2008/6/20/medline PY - 2007/8/24/entrez SP - 2972 EP - 80 JF - Bioresource technology JO - Bioresour Technol VL - 99 IS - 8 N2 - The biosorption characteristics of Pb(II) and Cr(III) ions from aqueous solution using the lichen (Parmelina tiliaceae) biomass were investigated. Optimum biosorption conditions were determined as a function of pH, biomass dosage, contact time, and temperature. Langmuir, Freundlich and Dubinin-Radushkevich (D-R) models were applied to describe the biosorption isotherm of the metal ions by P. tiliaceae biomass. Langmuir model fitted the equilibrium data better than the Freundlich isotherm. The monolayer biosorption capacity of P. tiliaceae biomass for Pb(II) and Cr(III) ions was found to be 75.8 mg/g and 52.1mg/g, respectively. From the D-R isotherm model, the mean free energy was calculated as 12.7 kJ/mol for Pb(II) biosorption and 10.5 kJ/mol for Cr(III) biosorption, indicating that the biosorption of both metal ions was taken place by chemical ion-exchange. The calculated thermodynamic parameters (delta G degrees , delta H degrees and delta S degrees) showed that the biosorption of Pb(II) and Cr(III) ions onto P. tiliaceae biomass was feasible, spontaneous and exothermic under examined conditions. Experimental data were also tested in terms of biosorption kinetics using pseudo-first-order and pseudo-second-order kinetic models. The results showed that the biosorption processes of both metal ions followed well pseudo-second-order kinetics. SN - 0960-8524 UR - https://www.unboundmedicine.com/medline/citation/17714944/Biosorption_of_Pb_II__and_Cr_III__from_aqueous_solution_by_lichen__Parmelina_tiliaceae__biomass_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(07)00516-0 DB - PRIME DP - Unbound Medicine ER -