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Composite Magnetic Sorbents Based on Iron Oxides in Different Polymer Matrices: Comparison and Application for Removal of Strontium

Institute of Chemistry, Far Eastern Branch, Russian Academy of Sciences, 690022 Vladivostok, Russia
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Biomimetics 2020, 5(2), 22; https://doi.org/10.3390/biomimetics5020022
Received: 31 March 2020 / Revised: 11 May 2020 / Accepted: 15 May 2020 / Published: 18 May 2020
Introduction of magnetic nanoparticles into composite sorbents based on polymer matrices has received great attention due to the possibility of using cheap iron oxides and removing spent sorbents by means of magnetic separation. In the present paper, we discuss the problem of creating magnetic sorbents using two types of matrices as host materials: synthetic cation exchange resin and natural aminopolysaccharide chitosan. The possibilities of applying matrices for the in situ formation of oxide phases of a specified composition with the required content of an inorganic component in a composite material were estimated. The composition of the oxide phase formed in the composite material was studied, and particle sizes were evaluated by the method of X-ray diffraction analysis. Magnetic characteristics were investigated. Sorption characteristics with respect to strontium for the composites containing iron oxides were determined. View Full-Text
Keywords: magnetic chitosan composites; polymeric sorbents and biosorbents; iron oxides; strontium; adsorption magnetic chitosan composites; polymeric sorbents and biosorbents; iron oxides; strontium; adsorption
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Egorin, A.; Tokar, E.; Matskevich, A.; Ivanov, N.; Tkachenko, I.; Sokolnitskaya, T.; Zemskova, L. Composite Magnetic Sorbents Based on Iron Oxides in Different Polymer Matrices: Comparison and Application for Removal of Strontium. Biomimetics 2020, 5, 22.

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