Novel Magnetic Polymer/bentonite Composite: Characterization and Application for Re(VII) and W(VI) Adsorption

Authors

  • Bojana M. Marković University of Belgrade – Institute of Chemistry, Technology and Metallurgy
  • Ivan S. Stefanović University of Belgrade – Institute of Chemistry, Technology and Metallurgy
  • Aleksandra B. Nastasović University of Belgrade – Institute of Chemistry, Technology and Metallurgy
  • Zvjezdana P. Sandić University of Banja Luka, Faculty of Natural Science and Mathematics
  • Ljiljana T. Suručić University of Banja Luka, Faculty of Medicine
  • Aleksandra Dapčević University of Belgrade, Faculty of Technology and Metallurgy
  • Jasna V. Džunuzović University of Belgrade – Institute of Chemistry, Technology and Metallurgy
  • Zvonko Jagličić University of Ljubljana, Faculty of Civil and Geodetic Engineering, Institute of Mathematics, Physics and Mechanics
  • Zorica M. Vuković University of Belgrade – Institute of Chemistry, Technology and Metallurgy
  • Vladimir Pavlović University of Belgrade, Faculty of Agriculture
  • Antonije E. Onjia University of Belgrade, Faculty of Technology and Metallurgy

Abstract

A novel magnetic polymer/bentonite composite was prepared by suspension copolymerization of glycidyl methacrylate and ethylene glycol dimethacrylate in the presence of magnetic bentonite (MB-PGME) and functionalized with ethylene diamine and hexamethylene diamine (MB-PGME-ED and MB-PGME-HD). The obtained samples were characterized in terms of structure as well as thermal, magnetic and morphological properties. The sorption of rhenium (Re) and tungsten (W) from aqueous solution onto MB-PGME-ED and MB-PGME-HD was investigated considering their contact time and different initial ion concentration, giving possibility for usage of these composites as commercial sorbents. The sorption system follows the pseudo-second order and intraparticle diffusion kinetic models. The results indicated a better fit with the Freundlich isotherm model.

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Published

2021-11-20

Issue

Vol. 53 No. 4 (2021)

Section

Articles