Gold imprinted adsorption based on eugenol

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Abstract

Synthesis of Ionic Imprinted Polymer (IIP)-Au have been carried out using polyeugenoxy acetate (PA) as the base polymer. IIP is formed through the transfer of a basic polymer with a metal template which is then crosslinked with ethylene glycol dimethacrylate (EGDMA) and the release of the metal template using acid. Non Imprinted Polymers are also synthesized for use as a comparison. Polymerization of up to IIP and NIP was carried out using infrared spectrophotometers and SEM-EDX. IIP and NIP are used to determine the rate and capacity of adsorption through kinetics and adsorption isotherms studies. Adsorption selectivity tests were carried out on a mixed metal solution system Au(III)/Cd(II), Au(III)/Pb(II), and Au(III)/Fe(III). The amount of adsorbed metal ions is calculated based on the remaining metal ions in the solution measured using atomic absorption spectroscopy. The results of the adsorption of Au(III) metal ions in IIP and NIP followed the second-order pseudo and isotherm followed Langmuir. adsorption capacity in IIP-PA is (28,305 mg/g), and NIP-PA adsorption capacity is (45,080 mg/g). IIP adsorption selectivity is greater than NIP in binary solutions in the order of Au(III)/Cd (II)> Au(III)/Pb(II)> Au(III)/Fe(III).

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Djunaidi, M. C. (2020). Gold imprinted adsorption based on eugenol. In Journal of Physics: Conference Series (Vol. 1524). Institute of Physics Publishing. https://doi.org/10.1088/1742-6596/1524/1/012077

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