Removal of toxic hexavalent chromium ions from water using magnetic protic poly (ionic liquids) nanocomposites (opens in new tab)

Novel magnetic nanocomposites (MNCs) based on Fe3O4 and NiFe2O4 nanoparticles were synthesized at low temperature via an in-situ approach using linear and crosslinked quaternized protic poly (ionic liquid) (PIL) matrices. Linear PILs were prepared from quaternized triethanolammonium acrylate and quaternized triethanolammonium 2-acrylamido-2-methylpropane sulfonate to form LQAA, while crosslinked copolymerization with N,N′-methylenebisacrylamide yielded CQAA hydrogels. For comparison, acrylic ...