Advances in Environmental Research
Volume 2, Number 4, 2013, pages 309-321
DOI: 10.12989/aer.2013.2.4.309
High capacity polymer for nickel determination in environmental samples
Homayon Ahmad Panahi, Alireza Feizbakhsh, Fatemeh Dadjoo and Elham Moniri
Abstract
A new high capacity sorbent for preconcentration and determination of nickel in environmental samples was synthesized. The sorbent was synthesized by copolymerization of allyl glaycidyl ether / imminodiacetic acid with N,N-dimethylacrylamide as functional monomers in the presence of N,N-bismethylenacryl amid as cross linker and characterized by Fourier transform infra red spectroscopy, elemental analysis, thermogravimetric analysis and scanning electron microscopy. A recovery of 93.6% was obtained for the metal ion with 0.1 M, sulfuric acid as the eluting agent. The sorption capacity of the functionalized sorbent was 55.9 mg g<sup>-1</sup>. The equilibrium sorption data of Ni(II) on polymeric sorbent were analyzed using Langmuir, Freundlich, Temkin and Redlich.Peterson models. Based on equilibrium adsorption data the Langmuir, Freundlich and Temkin constants were determined 0.87 (L mg<sup>-1</sup>), 25.87 (mg g<sup>-1</sup>) (L mg<sup>-1</sup>)<sup>1/<i>n</i></sup> and 171.4 (J mol<sup>-1</sup>) respectively at pH 4.5 and 20
Key Words
high capacity sorbent; nickel; preconcentration; isotherm study
Address
(1) Homayon Ahmad Panahi, Alireza Feizbakhsh and Fatemeh Dadjoo: Department of Chemistry, Islamic Azad University, Central Tehran Branch, Iran;
(2) Elham Moniri: Department of Chemistry, Islamic Azad University, Varamin (Pishva) Branch, Iran.