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Biosorption of cadmium(II) from aqueous solution by red algae (Ceramium virgatum): equilibrium, kinetic and thermodynamic studies.
J Hazard Mater. 2008 Sep 15; 157(2-3):448-54.JH

Abstract

The biosorption characteristics of Cd(II) ions using the red alga (Ceramium virgatum) were investigated. Experimental parameters affecting the biosorption process such as pH, contact time, biomass dosage and temperature were studied. Langmuir, Freundlich and Dubinin-Radushkevich (D-R) models were applied to describe the biosorption isotherms. The biosorption capacity of C. virgatum biomass for Cd(II) ions was found to be 39.7 mg/g. From the D-R isotherm model, the mean free energy was calculated as 12.7 kJ/mol, indicating that the biosorption of Cd(II) the metal ions was taken place by chemisorption. The calculated thermodynamic parameters (DeltaG degrees , DeltaH degrees and DeltaS degrees) showed that the biosorption of Cd(II) ions onto C. virgatum was feasible, spontaneous and exothermic at 293-323 K. Evaluation of experimental data in terms of biosorption kinetics showed that the biosorption of Cd(II) C. virgatum followed well pseudo-second-order kinetics.

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Publisher Full Text (DOI)

Authors+Show Affiliations

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

MeSH

AdsorptionBiomassCadmiumHydrogen-Ion ConcentrationKineticsRhodophytaSolutionsSpectroscopy, Fourier Transform InfraredTemperatureThermodynamicsTime FactorsWater Pollutants, Chemical

Pub Type(s)

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

Language

eng

PubMed ID

18280037

Citation

Sari, Ahmet, and Mustafa Tuzen. "Biosorption of cadmium(II) From Aqueous Solution By Red Algae (Ceramium Virgatum): Equilibrium, Kinetic and Thermodynamic Studies." Journal of Hazardous Materials, vol. 157, no. 2-3, 2008, pp. 448-54.
Sari A, Tuzen M. Biosorption of cadmium(II) from aqueous solution by red algae (Ceramium virgatum): equilibrium, kinetic and thermodynamic studies. J Hazard Mater. 2008;157(2-3):448-54.
Sari, A., & Tuzen, M. (2008). Biosorption of cadmium(II) from aqueous solution by red algae (Ceramium virgatum): equilibrium, kinetic and thermodynamic studies. Journal of Hazardous Materials, 157(2-3), 448-54. https://doi.org/10.1016/j.jhazmat.2008.01.008
Sari A, Tuzen M. Biosorption of cadmium(II) From Aqueous Solution By Red Algae (Ceramium Virgatum): Equilibrium, Kinetic and Thermodynamic Studies. J Hazard Mater. 2008 Sep 15;157(2-3):448-54. PubMed PMID: 18280037.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Biosorption of cadmium(II) from aqueous solution by red algae (Ceramium virgatum): equilibrium, kinetic and thermodynamic studies. AU - Sari,Ahmet, AU - Tuzen,Mustafa, Y1 - 2008/01/11/ PY - 2007/12/03/received PY - 2007/12/26/revised PY - 2008/01/02/accepted PY - 2008/2/19/pubmed PY - 2009/1/8/medline PY - 2008/2/19/entrez SP - 448 EP - 54 JF - Journal of hazardous materials JO - J Hazard Mater VL - 157 IS - 2-3 N2 - The biosorption characteristics of Cd(II) ions using the red alga (Ceramium virgatum) were investigated. Experimental parameters affecting the biosorption process such as pH, contact time, biomass dosage and temperature were studied. Langmuir, Freundlich and Dubinin-Radushkevich (D-R) models were applied to describe the biosorption isotherms. The biosorption capacity of C. virgatum biomass for Cd(II) ions was found to be 39.7 mg/g. From the D-R isotherm model, the mean free energy was calculated as 12.7 kJ/mol, indicating that the biosorption of Cd(II) the metal ions was taken place by chemisorption. The calculated thermodynamic parameters (DeltaG degrees , DeltaH degrees and DeltaS degrees) showed that the biosorption of Cd(II) ions onto C. virgatum was feasible, spontaneous and exothermic at 293-323 K. Evaluation of experimental data in terms of biosorption kinetics showed that the biosorption of Cd(II) C. virgatum followed well pseudo-second-order kinetics. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/18280037/Biosorption_of_cadmium_II__from_aqueous_solution_by_red_algae__Ceramium_virgatum_:_equilibrium_kinetic_and_thermodynamic_studies_ DB - PRIME DP - Unbound Medicine ER -