Abstract
Emerging contaminants such as perfluorinated compounds (PFCs) and heavy metals are of increasing concerns due to their detrimental effects on environment and human health. Their mixtures are often present at contaminated sites that pose a challenge in water remediation. Herein, we report a multifunctional magnetic sorbent (Fe3O4-CDI-IL MNPs) that was prepared by modifying the magnetic Fe3O4 nanoparticle with β-cyclodextrin–ionic liquid (β-CD-IL) polyurethanes for the removal of perfluorooctanesulfonate (PFOS), perfluorooctanoic acid (PFOA), and Cr(VI) from aqueous solution. The successful grafting of the β-CD-IL polymer on magnetic nanoparticles was confirmed by FTIR, ζ -potential, TGA, and VSM. The sorption behaviors of Fe3O4-CDI-IL MNPs were investigated in terms of sorption kinetics, isotherms, simultaneous removal capability, and reusability. The kinetic results showed that the sorption of PFOS, PFOA, and Cr(VI) reached equilibrium within 4, 6, and 3 h, respectively, and the pseudo-second-order kineti...
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