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Adsorption characterization of Pb(II) and Cu(II) ions onto chitosan-tripolyphosphate beads: Kinetic, equilibrium and thermodynamic studies.
J Environ Manage. 2010 Mar-Apr; 91(4):958-69.JE

Abstract

Chitosan-tripolyphosphate (CTPP) beads were synthesized, characterized and were used for the adsorption of Pb(II) and Cu(II) ions from aqueous solution. The effects of initial pH, agitation period, adsorbent dosage, different initial concentrations of heavy metal ions and temperature were studied. The experimental data were correlated with the Langmuir, Freundlich and Dubinin-Radushkevich isotherm models. The maximum adsorption capacities of Pb(II) and Cu(II) ions in a single metal system based on the Langmuir isotherm model were 57.33 and 26.06 mg/g, respectively. However, the beads showed higher selectivity towards Cu(II) over Pb(II) ions in the binary metal system. Various thermodynamic parameters such as enthalpy (DeltaH degrees), Gibbs free energy (DeltaG degrees) and entropy (DeltaS degrees) changes were computed and the results showed that the adsorption of both heavy metal ions onto CTPP beads was spontaneous and endothermic in nature. The kinetic data were evaluated based on the pseudo-first and -second order kinetic and intraparticle diffusion models. Infrared spectra were used to elucidate the mechanism of Pb(II) and Cu(II) ions adsorption onto CTPP beads.

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Authors+Show Affiliations

Ngah WS
School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia. wsaime@usm.my
Fatinathan S
No affiliation info available

MeSH

AdsorptionChitosanCopperIonsKineticsLeadModels, TheoreticalPolyphosphatesThermodynamicsWater PollutantsWater Purification

Pub Type(s)

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

Language

eng

PubMed ID

20044203

Citation

Ngah, W S Wan, and S Fatinathan. "Adsorption Characterization of Pb(II) and Cu(II) Ions Onto Chitosan-tripolyphosphate Beads: Kinetic, Equilibrium and Thermodynamic Studies." Journal of Environmental Management, vol. 91, no. 4, 2010, pp. 958-69.
Ngah WS, Fatinathan S. Adsorption characterization of Pb(II) and Cu(II) ions onto chitosan-tripolyphosphate beads: Kinetic, equilibrium and thermodynamic studies. J Environ Manage. 2010;91(4):958-69.
Ngah, W. S., & Fatinathan, S. (2010). Adsorption characterization of Pb(II) and Cu(II) ions onto chitosan-tripolyphosphate beads: Kinetic, equilibrium and thermodynamic studies. Journal of Environmental Management, 91(4), 958-69. https://doi.org/10.1016/j.jenvman.2009.12.003
Ngah WS, Fatinathan S. Adsorption Characterization of Pb(II) and Cu(II) Ions Onto Chitosan-tripolyphosphate Beads: Kinetic, Equilibrium and Thermodynamic Studies. J Environ Manage. 2010 Mar-Apr;91(4):958-69. PubMed PMID: 20044203.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Adsorption characterization of Pb(II) and Cu(II) ions onto chitosan-tripolyphosphate beads: Kinetic, equilibrium and thermodynamic studies. AU - Ngah,W S Wan, AU - Fatinathan,S, Y1 - 2009/12/30/ PY - 2008/12/15/received PY - 2009/09/10/revised PY - 2009/12/05/accepted PY - 2010/1/2/entrez PY - 2010/1/2/pubmed PY - 2010/7/7/medline SP - 958 EP - 69 JF - Journal of environmental management JO - J Environ Manage VL - 91 IS - 4 N2 - Chitosan-tripolyphosphate (CTPP) beads were synthesized, characterized and were used for the adsorption of Pb(II) and Cu(II) ions from aqueous solution. The effects of initial pH, agitation period, adsorbent dosage, different initial concentrations of heavy metal ions and temperature were studied. The experimental data were correlated with the Langmuir, Freundlich and Dubinin-Radushkevich isotherm models. The maximum adsorption capacities of Pb(II) and Cu(II) ions in a single metal system based on the Langmuir isotherm model were 57.33 and 26.06 mg/g, respectively. However, the beads showed higher selectivity towards Cu(II) over Pb(II) ions in the binary metal system. Various thermodynamic parameters such as enthalpy (DeltaH degrees), Gibbs free energy (DeltaG degrees) and entropy (DeltaS degrees) changes were computed and the results showed that the adsorption of both heavy metal ions onto CTPP beads was spontaneous and endothermic in nature. The kinetic data were evaluated based on the pseudo-first and -second order kinetic and intraparticle diffusion models. Infrared spectra were used to elucidate the mechanism of Pb(II) and Cu(II) ions adsorption onto CTPP beads. SN - 1095-8630 UR - https://www.unboundmedicine.com/medline/citation/20044203/Adsorption_characterization_of_Pb_II__and_Cu_II__ions_onto_chitosan_tripolyphosphate_beads:_Kinetic_equilibrium_and_thermodynamic_studies_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0301-4797(09)00400-9 DB - PRIME DP - Unbound Medicine ER -