Nanoparticle Beads of Chitosan-Ethylene Glycol Diglycidyl Ether/Fe for the Removal of Aldrin

This article reports on the preparation of iron nanoparticles (FeNPs) supported in chitosan beads (Chi-EDGE-Fe) for removing aldrin from aqueous solutions. The FeNPs and Chi-EDGE-Fe were characterized by means scanning electron microscopy (SEM), transmission (TEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR), Mössbauer spectroscopy (MS) techniques. TEM, XRD, MS showed that had core-shell structures consisting a core either Fe0 or Fe2B shell magnetite. Furthermore, SEM images spherical with irregular surfaces certain degrees roughness porosity, whilst sorbent mean pore size was 204 nm, occluded material diameters 70 nm formed agglomerates. consisted carbon, oxygen, chlorine, aluminum, silicon, according to SEM-EDS analysis. Functional groups such as O-H, C-H, -CH2, N-H, C-O, C-OH, Fe-OH detected FTIR spectra. In addition, characteristic band appeared at about 1700 cm−1 after sorption process involving aldrin. also probably oxidized into NPs α-Fe2O3 result supporting process. isotherm removal followed Langmuir–Freundlich model presented maximum adsorption capacity 74.84 mg/g, demonstrating chitosan-Fe are promising sorbents toxic pollutants