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Characterization of biosorption process of As(III) on green algae Ulothrix cylindricum.
J Hazard Mater. 2009 Jun 15; 165(1-3):566-72.JH

Abstract

Arsenic (As) is generally found as As(III) and As(V) in environmental samples. Toxicity of As(III) is higher than As(V). This paper presents the characteristics of As(III) biosorption from aqueous solution using the green algae (Ulothrix cylindricum) biomass 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 As(III) by U. cylindricum biomass. The biosorption capacity of U. cylindricum biomass was found as 67.2mg/g. The metal ions were desorbed from U. cylindricum using 1M HCl. The high stability of U. cylindricum permitted 10 times of adsorption-elution process along the studies with a slightly decrease about 16% in recovery of As(III) ions. The mean free energy value evaluated from the D-R model indicated that the biosorption of As(III) onto U. cylindricum biomass was taken place by chemical ion-exchange. The calculated thermodynamic parameters, DeltaG degrees , DeltaH degrees and DeltaS degrees showed that the biosorption of As(III) onto U. cylindricum 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 As(III) followed well pseudo-second-order kinetics.

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Authors+Show Affiliations

Tuzen M
Department of Chemistry, Gaziosmanpasa University, Tokat, Turkey. mtuzen@gop.edu.tr
Sari A
No affiliation info available
Mendil D
No affiliation info available
Uluozlu OD
No affiliation info available
Soylak M
No affiliation info available
Dogan M
No affiliation info available

MeSH

AdsorptionArsenicBiomassChlorophytaKineticsThermodynamicsWater Pollutants, Chemical

Pub Type(s)

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

Language

eng

PubMed ID

19010595

Citation

Tuzen, Mustafa, et al. "Characterization of Biosorption Process of As(III) On Green Algae Ulothrix Cylindricum." Journal of Hazardous Materials, vol. 165, no. 1-3, 2009, pp. 566-72.
Tuzen M, Sari A, Mendil D, et al. Characterization of biosorption process of As(III) on green algae Ulothrix cylindricum. J Hazard Mater. 2009;165(1-3):566-72.
Tuzen, M., Sari, A., Mendil, D., Uluozlu, O. D., Soylak, M., & Dogan, M. (2009). Characterization of biosorption process of As(III) on green algae Ulothrix cylindricum. Journal of Hazardous Materials, 165(1-3), 566-72. https://doi.org/10.1016/j.jhazmat.2008.10.020
Tuzen M, et al. Characterization of Biosorption Process of As(III) On Green Algae Ulothrix Cylindricum. J Hazard Mater. 2009 Jun 15;165(1-3):566-72. PubMed PMID: 19010595.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Characterization of biosorption process of As(III) on green algae Ulothrix cylindricum. AU - Tuzen,Mustafa, AU - Sari,Ahmet, AU - Mendil,Durali, AU - Uluozlu,Ozgur Dogan, AU - Soylak,Mustafa, AU - Dogan,Mehmet, Y1 - 2008/10/14/ PY - 2008/06/12/received PY - 2008/09/06/revised PY - 2008/10/07/accepted PY - 2008/11/18/pubmed PY - 2009/7/8/medline PY - 2008/11/18/entrez SP - 566 EP - 72 JF - Journal of hazardous materials JO - J Hazard Mater VL - 165 IS - 1-3 N2 - Arsenic (As) is generally found as As(III) and As(V) in environmental samples. Toxicity of As(III) is higher than As(V). This paper presents the characteristics of As(III) biosorption from aqueous solution using the green algae (Ulothrix cylindricum) biomass 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 As(III) by U. cylindricum biomass. The biosorption capacity of U. cylindricum biomass was found as 67.2mg/g. The metal ions were desorbed from U. cylindricum using 1M HCl. The high stability of U. cylindricum permitted 10 times of adsorption-elution process along the studies with a slightly decrease about 16% in recovery of As(III) ions. The mean free energy value evaluated from the D-R model indicated that the biosorption of As(III) onto U. cylindricum biomass was taken place by chemical ion-exchange. The calculated thermodynamic parameters, DeltaG degrees , DeltaH degrees and DeltaS degrees showed that the biosorption of As(III) onto U. cylindricum 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 As(III) followed well pseudo-second-order kinetics. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/19010595/Characterization_of_biosorption_process_of_As_III__on_green_algae_Ulothrix_cylindricum_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(08)01510-0 DB - PRIME DP - Unbound Medicine ER -