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Abstract: We have synthesized ferromagnetic nanoparticles with an imprinted polymer coating that is capable of adsorbing and extracting uranyl ions. The adsorbent was characterized using infrared spectroscopy, elemental analysis, X-ray powder diffraction analysis, and scanning electron microscopy. The effects of sample pH, sample volume, weight of the adsorbent, contact time and of other ions have been investigated in the batch extraction mode. The performance of the material was compared to that of particles coated with a non-imprinted polymer. The adsorbent containing the imprinted coating displays higher sorption capacity and better selectivity to uranyl ions. The method was successfully applied to the determination of uranyl ions in water samples. Figure Magnetic separation of uranyl ions from aqueous solution using a new uranyl-imprinted material prepared by surface modification of silica coated magnetic nanoparticles
Template and target information: uranyl ions
Author keywords: imprinted polymer, Fe3O4 magnetic nanoparticles, extraction, uranyl ion