Preparation and characterization of Zn(II) ion-imprinted polymer based on salicylic acrylate for recovery of Zn(II) ions

Ebrahim Ahmadi,Zahra Mohamadnia,Javad Gatabi

doi:10.1590/0104-1428.2322

Ebrahim Ahmadi, Zahra Mohamadnia + Show 1 more

Open Access

https://doi.org/10.1590/0104-1428.2322

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Abstract

This work describes the synthesis of new ion-imprinted polymers (IIPs) for selective solid phase extraction of Zn(II) ions from aqueous samples. IIPs were synthesized by copolymerization of salicylic acrylate (SA) as a functional monomer and ethylene glycol dimethacrylate (EGDMA) as a crosslinker in the presence of 2,2’-azobisisobutyronitrile (AIBN) as an initiator. The template ions were removed from IIPs particles by leaching with 0.1 M Ethylenediaminetetraacetic acid (EDTA) which leaves cavities in the particles with the capability of selective extraction of the Zn(II) ions. The monomer and the polymer after synthesis have been characterized by 1H NMR, 13C NMR and FT-IR studies. The effect of the pH on the extraction efficiency of Zn(II) ions was studied and optimized in pH around 6. The selectivity of the synthesized IIPs was studied in the presence of Co(II), Cd(II) and Ni(II) ions, and the IIPs showed higher affinity for Zn(II) in the presence of other interfering ions.

Highlights

Zinc is one of the most abundant elements in the Earth’s polymers (MIPs) provide this opportunity to synthesize very crust
MIPs are prepared in the presence of galvanizing iron, production of brass, zinc carbonate, zinc template molecules in order to mold template complementary gluconate, zinc chloride, zinc pyrithionse and zinc sulfide. binding sites[7,8,9]
Other bands at 1603 cm–1 and 2815 cm–1 are corresponded to the C=C group and stretching vibrations of C-H bond of the aldehyde

Summary

Introduction

Zinc is one of the most abundant elements in the Earth’s polymers (MIPs) provide this opportunity to synthesize very crust. Zinc has many industrial applications includes; selective sorbents. MIPs are prepared in the presence of galvanizing iron, production of brass, zinc carbonate, zinc template molecules in order to mold template complementary gluconate, zinc chloride, zinc pyrithionse and zinc sulfide. It is used as a negative plate for some batteries, roofing of a complex of a template and a functional monomer with and gutters in building construction, as a coin material, die a cross-linking agent in the environment of a porogenic casting in the automobile industry. After leaching the template molecules, a rigid three cosmetics and the production of white pigment[1]

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