Selective adsorption of Pb(II), Cd(II), and Ni(II) ions from aqueoussolution using chitosan-MAA nanoparticles

Aghdas Heidari, Habibollah Younesi (Corresponding Author), Zahra Mehraban, Harri Heikkinen

Research output: Contribution to journalArticleScientificpeer-review

134 Citations (Scopus)

Abstract

Chitosan–MAA nanoparticles (CS–MAA) with an average size of 10–70 nm were prepared by polymerizing chitosan with methacrylic acid in aqueous solution. The physicochemical properties of nanoparticles were investigated using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), dynamic light scattering (DLS) and nuclear magnetic resonance (NMR). The adsorption of Pb(II), Cd(II) and Ni(II) from aqueous solution on CS–MAA was studied in a batch system. The effects of the solution pH, initial metal concentration, contact time, and dosage of the adsorbent on the adsorption process were examined. The experimental data were analyzed using the pseudo-second-order kinetic equations and the Langmuir, Freundlich and Redlish–Peterson isotherms. The maximum adsorption capacity was 11.30, 1.84, and 0.87 mg/g for Pb(II), Cd(II) and Ni(II) ions, respectively, obtained by the Langmuir isotherm. However, the adsorption isotherm was better explained by the Freundlich rather than by the Langmuir model, as the high correlation coefficients (R2 > 0.99) were obtained at a higher confidence level.
Original languageEnglish
Pages (from-to)251-263
JournalInternational Journal of Biological Macromolecules
Volume61
DOIs
Publication statusPublished - 2013
MoE publication typeA1 Journal article-refereed

Fingerprint

Chitosan
Nanoparticles
Adsorption
Ions
Isotherms
Dynamic light scattering
Adsorption isotherms
Photoelectron Spectroscopy
Contacts (fluid mechanics)
Adsorbents
Fourier Transform Infrared Spectroscopy
X ray photoelectron spectroscopy
Metals
Nuclear magnetic resonance
Electron Scanning Microscopy
Scanning electron microscopy
Kinetics
Magnetic Resonance Spectroscopy

Keywords

  • chitosan-MAA nanoparticle
  • adsorption isotherm
  • kinetics
  • desorption

Cite this

Heidari, Aghdas ; Younesi, Habibollah ; Mehraban, Zahra ; Heikkinen, Harri. / Selective adsorption of Pb(II), Cd(II), and Ni(II) ions from aqueoussolution using chitosan-MAA nanoparticles. In: International Journal of Biological Macromolecules. 2013 ; Vol. 61. pp. 251-263.
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abstract = "Chitosan–MAA nanoparticles (CS–MAA) with an average size of 10–70 nm were prepared by polymerizing chitosan with methacrylic acid in aqueous solution. The physicochemical properties of nanoparticles were investigated using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), dynamic light scattering (DLS) and nuclear magnetic resonance (NMR). The adsorption of Pb(II), Cd(II) and Ni(II) from aqueous solution on CS–MAA was studied in a batch system. The effects of the solution pH, initial metal concentration, contact time, and dosage of the adsorbent on the adsorption process were examined. The experimental data were analyzed using the pseudo-second-order kinetic equations and the Langmuir, Freundlich and Redlish–Peterson isotherms. The maximum adsorption capacity was 11.30, 1.84, and 0.87 mg/g for Pb(II), Cd(II) and Ni(II) ions, respectively, obtained by the Langmuir isotherm. However, the adsorption isotherm was better explained by the Freundlich rather than by the Langmuir model, as the high correlation coefficients (R2 > 0.99) were obtained at a higher confidence level.",
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Selective adsorption of Pb(II), Cd(II), and Ni(II) ions from aqueoussolution using chitosan-MAA nanoparticles. / Heidari, Aghdas; Younesi, Habibollah (Corresponding Author); Mehraban, Zahra; Heikkinen, Harri.

In: International Journal of Biological Macromolecules, Vol. 61, 2013, p. 251-263.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Selective adsorption of Pb(II), Cd(II), and Ni(II) ions from aqueoussolution using chitosan-MAA nanoparticles

AU - Heidari, Aghdas

AU - Younesi, Habibollah

AU - Mehraban, Zahra

AU - Heikkinen, Harri

PY - 2013

Y1 - 2013

N2 - Chitosan–MAA nanoparticles (CS–MAA) with an average size of 10–70 nm were prepared by polymerizing chitosan with methacrylic acid in aqueous solution. The physicochemical properties of nanoparticles were investigated using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), dynamic light scattering (DLS) and nuclear magnetic resonance (NMR). The adsorption of Pb(II), Cd(II) and Ni(II) from aqueous solution on CS–MAA was studied in a batch system. The effects of the solution pH, initial metal concentration, contact time, and dosage of the adsorbent on the adsorption process were examined. The experimental data were analyzed using the pseudo-second-order kinetic equations and the Langmuir, Freundlich and Redlish–Peterson isotherms. The maximum adsorption capacity was 11.30, 1.84, and 0.87 mg/g for Pb(II), Cd(II) and Ni(II) ions, respectively, obtained by the Langmuir isotherm. However, the adsorption isotherm was better explained by the Freundlich rather than by the Langmuir model, as the high correlation coefficients (R2 > 0.99) were obtained at a higher confidence level.

AB - Chitosan–MAA nanoparticles (CS–MAA) with an average size of 10–70 nm were prepared by polymerizing chitosan with methacrylic acid in aqueous solution. The physicochemical properties of nanoparticles were investigated using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), dynamic light scattering (DLS) and nuclear magnetic resonance (NMR). The adsorption of Pb(II), Cd(II) and Ni(II) from aqueous solution on CS–MAA was studied in a batch system. The effects of the solution pH, initial metal concentration, contact time, and dosage of the adsorbent on the adsorption process were examined. The experimental data were analyzed using the pseudo-second-order kinetic equations and the Langmuir, Freundlich and Redlish–Peterson isotherms. The maximum adsorption capacity was 11.30, 1.84, and 0.87 mg/g for Pb(II), Cd(II) and Ni(II) ions, respectively, obtained by the Langmuir isotherm. However, the adsorption isotherm was better explained by the Freundlich rather than by the Langmuir model, as the high correlation coefficients (R2 > 0.99) were obtained at a higher confidence level.

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