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Biosorption of nickel onto treated alga (Oedogonium hatei): Application of isotherm and kinetic models.
J Colloid Interface Sci. 2010 Feb 15; 342(2):533-9.JC

Abstract

Oedogonium hatei was developed into an effective and efficient adsorbent for the removal of Ni(II) ions from aqueous solution. The adsorption studies of untreated and treated algal biomass (with 0.1M HCl) were compared in batch mode. Optimum biosorption conditions were determined as a function of pH, biomass dosage, contact time, and temperature and the Langmuir and Freundlich isotherms were found applicable in terms of relatively high regression values. The maximum monolayer adsorption capacity of the biosorbents (untreated and acid-treated algae), as obtained from the Langmuir adsorption isotherm, was found to be 40.9 and 44.2mg/g, respectively at 80min contact time, 5.0 pH, 0.7g/L algal dose, and 298K temperature. The thermodynamic parameters showed that the adsorption of Ni(II) ions onto algal biomass was feasible, spontaneous, and exothermic under the studied conditions. Kinetics of adsorption followed both first- and second-order rate equations and the process involving the rate-controlling step is complex involving boundary layer as well as intraparticle diffusion processes. The FTIR results of algal biomass showed that biomass has different functional groups and these functional groups are able to react with metal ion in aqueous solution. Biosorbent could be regenerated using 0.1M NaOH solution, with up to 70% recovery. The performance of this biosorbent was then compared with many other reported biosorbents for nickel removal and it was observed that the proposed adsorbent is effective in terms of its performance.

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Authors+Show Affiliations

Gupta VK
Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India. vinodfcy@iitr.ernet.in
Rastogi A
No affiliation info available
Nayak A
No affiliation info available

MeSH

AcidsAdsorptionBiomassChlorophytaHydrogen-Ion ConcentrationKineticsNickelSpectroscopy, Fourier Transform InfraredThermodynamicsWater Purification

Pub Type(s)

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

Language

eng

PubMed ID

20004906

Citation

Gupta, Vinod K., et al. "Biosorption of Nickel Onto Treated Alga (Oedogonium Hatei): Application of Isotherm and Kinetic Models." Journal of Colloid and Interface Science, vol. 342, no. 2, 2010, pp. 533-9.
Gupta VK, Rastogi A, Nayak A. Biosorption of nickel onto treated alga (Oedogonium hatei): Application of isotherm and kinetic models. J Colloid Interface Sci. 2010;342(2):533-9.
Gupta, V. K., Rastogi, A., & Nayak, A. (2010). Biosorption of nickel onto treated alga (Oedogonium hatei): Application of isotherm and kinetic models. Journal of Colloid and Interface Science, 342(2), 533-9. https://doi.org/10.1016/j.jcis.2009.10.074
Gupta VK, Rastogi A, Nayak A. Biosorption of Nickel Onto Treated Alga (Oedogonium Hatei): Application of Isotherm and Kinetic Models. J Colloid Interface Sci. 2010 Feb 15;342(2):533-9. PubMed PMID: 20004906.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Biosorption of nickel onto treated alga (Oedogonium hatei): Application of isotherm and kinetic models. AU - Gupta,Vinod K, AU - Rastogi,Arshi, AU - Nayak,Arunima, Y1 - 2009/10/31/ PY - 2009/10/06/received PY - 2009/10/27/revised PY - 2009/10/28/accepted PY - 2009/12/17/entrez PY - 2009/12/17/pubmed PY - 2010/5/27/medline SP - 533 EP - 9 JF - Journal of colloid and interface science JO - J Colloid Interface Sci VL - 342 IS - 2 N2 - Oedogonium hatei was developed into an effective and efficient adsorbent for the removal of Ni(II) ions from aqueous solution. The adsorption studies of untreated and treated algal biomass (with 0.1M HCl) were compared in batch mode. Optimum biosorption conditions were determined as a function of pH, biomass dosage, contact time, and temperature and the Langmuir and Freundlich isotherms were found applicable in terms of relatively high regression values. The maximum monolayer adsorption capacity of the biosorbents (untreated and acid-treated algae), as obtained from the Langmuir adsorption isotherm, was found to be 40.9 and 44.2mg/g, respectively at 80min contact time, 5.0 pH, 0.7g/L algal dose, and 298K temperature. The thermodynamic parameters showed that the adsorption of Ni(II) ions onto algal biomass was feasible, spontaneous, and exothermic under the studied conditions. Kinetics of adsorption followed both first- and second-order rate equations and the process involving the rate-controlling step is complex involving boundary layer as well as intraparticle diffusion processes. The FTIR results of algal biomass showed that biomass has different functional groups and these functional groups are able to react with metal ion in aqueous solution. Biosorbent could be regenerated using 0.1M NaOH solution, with up to 70% recovery. The performance of this biosorbent was then compared with many other reported biosorbents for nickel removal and it was observed that the proposed adsorbent is effective in terms of its performance. SN - 1095-7103 UR - https://www.unboundmedicine.com/medline/citation/20004906/Biosorption_of_nickel_onto_treated_alga__Oedogonium_hatei_:_Application_of_isotherm_and_kinetic_models_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0021-9797(09)01409-X DB - PRIME DP - Unbound Medicine ER -