Tags

Type your tag names separated by a space and hit enter

Equilibrium, thermodynamic and kinetic studies on aluminum biosorption from aqueous solution by brown algae (Padina pavonica) biomass.
J Hazard Mater. 2009 Nov 15; 171(1-3):973-9.JH

Abstract

This paper presents the equilibrium, thermodynamic and kinetic studies on aluminum biosorption from aqueous solution by brown algae (Padina pavonica) biomass. 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 Al(III) by P. pavonica biomass. The biosorption capacity of P. pavonica biomass was found as 77.3mg/g. The metal ions were desorbed from P. pavonica using 1M HCl. The high stability of P. pavonica permitted a slight decrease about 20% in the recovery of Al(III) ions after 10 times of adsorption-elution process. The mean free energy value evaluated from the D-R model indicated that the biosorption of Al(III) onto P. pavonica biomass was taken place by chemical ion exchange. The calculated thermodynamic parameters, DeltaG degrees , DeltaH degrees and DeltaS degrees showed that the biosorption of Al(III) onto P. pavonica biomass was feasible, spontaneous and endothermic under examined conditions. Experimental data was 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 Al(III) onto P. pavonica biomass followed well pseudo-second-order kinetics.

Links

Publisher Full Text

Authors+Show Affiliations

Sari A
Department of Chemistry, Gaziosmanpasa University, 60250 Tokat, Turkey. asari@gop.edu.tr
Tuzen M
No affiliation info available

MeSH

AdsorptionAluminumBiodegradation, EnvironmentalBiomassHydrogen-Ion ConcentrationIonsKineticsPhaeophytaSpectroscopy, Fourier Transform InfraredTemperatureThermodynamicsTime FactorsWater

Pub Type(s)

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

Language

eng

PubMed ID

19631462

Citation

Sari, Ahmet, and Mustafa Tuzen. "Equilibrium, Thermodynamic and Kinetic Studies On Aluminum Biosorption From Aqueous Solution By Brown Algae (Padina Pavonica) Biomass." Journal of Hazardous Materials, vol. 171, no. 1-3, 2009, pp. 973-9.
Sari A, Tuzen M. Equilibrium, thermodynamic and kinetic studies on aluminum biosorption from aqueous solution by brown algae (Padina pavonica) biomass. J Hazard Mater. 2009;171(1-3):973-9.
Sari, A., & Tuzen, M. (2009). Equilibrium, thermodynamic and kinetic studies on aluminum biosorption from aqueous solution by brown algae (Padina pavonica) biomass. Journal of Hazardous Materials, 171(1-3), 973-9. https://doi.org/10.1016/j.jhazmat.2009.06.101
Sari A, Tuzen M. Equilibrium, Thermodynamic and Kinetic Studies On Aluminum Biosorption From Aqueous Solution By Brown Algae (Padina Pavonica) Biomass. J Hazard Mater. 2009 Nov 15;171(1-3):973-9. PubMed PMID: 19631462.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Equilibrium, thermodynamic and kinetic studies on aluminum biosorption from aqueous solution by brown algae (Padina pavonica) biomass. AU - Sari,Ahmet, AU - Tuzen,Mustafa, Y1 - 2009/06/26/ PY - 2009/05/18/received PY - 2009/06/19/revised PY - 2009/06/19/accepted PY - 2009/7/28/entrez PY - 2009/7/28/pubmed PY - 2010/1/20/medline SP - 973 EP - 9 JF - Journal of hazardous materials JO - J Hazard Mater VL - 171 IS - 1-3 N2 - This paper presents the equilibrium, thermodynamic and kinetic studies on aluminum biosorption from aqueous solution by brown algae (Padina pavonica) biomass. 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 Al(III) by P. pavonica biomass. The biosorption capacity of P. pavonica biomass was found as 77.3mg/g. The metal ions were desorbed from P. pavonica using 1M HCl. The high stability of P. pavonica permitted a slight decrease about 20% in the recovery of Al(III) ions after 10 times of adsorption-elution process. The mean free energy value evaluated from the D-R model indicated that the biosorption of Al(III) onto P. pavonica biomass was taken place by chemical ion exchange. The calculated thermodynamic parameters, DeltaG degrees , DeltaH degrees and DeltaS degrees showed that the biosorption of Al(III) onto P. pavonica biomass was feasible, spontaneous and endothermic under examined conditions. Experimental data was 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 Al(III) onto P. pavonica biomass followed well pseudo-second-order kinetics. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/19631462/Equilibrium_thermodynamic_and_kinetic_studies_on_aluminum_biosorption_from_aqueous_solution_by_brown_algae__Padina_pavonica__biomass_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(09)01030-9 DB - PRIME DP - Unbound Medicine ER -