Synthesis, characterization and morphology of new magnetic fluorochromate hybrid nanomaterials with triethylamine surface modified iron oxide nanoparticles

Magnetic fluorochromate Fe3O4@SiO2@TEA@[CrO3F] was synthesized by ethylene glycol route. The structures, morphologies and properties of the catalyst were characterized by using X-ray diffraction (XRD), Fourier transform infrared (FT-IR), elemental analysis, X-ray fluorescence (XRF), solid state UV-vis, transmission electron microscopy (TEM), scanning electron microscope (SEM), N-2 adsorption-desorption (BET and BJH) and vibrating sample magnetometer (VSM). The quantity of chromium is approximately 0.32%, which confirms the immobilization amount of [CrO3F]- which is equal with 0.006 mo1/100 g. (C) 2014 Elsevier B.V. All rights reserved.