Chelation Properties of Chitosan Functionalized with 1-Hydroxy-2-pyridinethione-4-carboxylic Acid Toward Some Heavy Metal Ions in Aqueous Solutions

A novel polymer derived from chitosan and 1-hydroxy-2-pyridinethione-4-carboxylic acid as pendant group was prepared and characterized by different spectroscopic methods and by elemental analysis. The chelation properties of the new polymer towards the divalent metal ions (Pb 2+ , Cd 2+ , Cu 2+ , Ni...

Full description

Saved in:
Bibliographic Details
Published in:Journal of macromolecular science. Part A, Pure and applied chemistry Pure and applied chemistry, 2012-01, Vol.49 (1), p.15-29
Main Authors: Muhanna, Faryza J., Dari, Kamal Abu, Mubarak, Mohammad S.
Format: Article
Language:English
Subjects:
1-hydroxy-2-pyridinethione-4-carboxylic acid
adsorption isotherms
Applied sciences
Chitosan
Exact sciences and technology
heavy metal ions
Natural polymers
Physicochemistry of polymers
resin
Starch and polysaccharides
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A novel polymer derived from chitosan and 1-hydroxy-2-pyridinethione-4-carboxylic acid as pendant group was prepared and characterized by different spectroscopic methods and by elemental analysis. The chelation properties of the new polymer towards the divalent metal ions (Pb 2+ , Cd 2+ , Cu 2+ , Ni 2+ , and Zn 2+ ) in aqueous solutions was studied by a batch equilibration technique as a function of contact time, pH, mass of resin, concentration of metal ions, and particle size. The amount of metal-ion uptake of the polymer was determined by using atomic absorption spectrometry (AAS). Results of the investigation revealed that the resin exhibited higher capacities and a more pronounced adsorption toward Pb 2+ and that the metal-ion uptake follows the order: Pb 2+ > Cu 2+ > Zn 2+ > Ni 2+ > Cd 2+ . The isothermal behavior and the kinetics of adsorption of Pb(II) ions on the resin were also investigated; the experimental data of the adsorption equilibrium from Pb(II) solution correlates well with the Langmuir isotherm equation.
ISSN:1060-1325
1520-5738
DOI:10.1080/10601325.2012.630930