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Study of Copper Ion Adsorption by Itaconic-Based Hydrogels
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1  Cracow University of Technology, Faculty of Chemical Engineering and Technology Department of Biotechnology and Physical Chemistry

Abstract: Hydrogels are macromolecular, insoluble polymers, capable of absorbing large quantities of water. Their properties make them widely utilized superabsorbents. Recently, a novel family of ionic solvents called deep eutectic solvents (DES) have been applied to prepare the hydrogels. In this work, poly(itaconic acid) - based hydrogels prepared by free-radical polymerization-crosslinking of itaconic acid in deep eutectic mixture with choline chloride, were prepared and characterized by elemental analysis, FTIR spectroscopy and SEM. The process of removal of copper cations (Cu2+) from aqueous solutions by the gels was studied. The Freundlich and Langmuir adsorption isotherm models were applied to quantitative describe the metal binding.
Keywords: Hydrogels; free-radical polymerization; crosslinking; ionic liquids