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

• A new immobilization of fluorochromate on Et3N surface modified Fe3O4 is reported.
• It was approved by XRF, XRD, FT-IR, UV–vis, SEM, TEM, BET and VSM.
• The analysis showed uniform nanoscale size of the spherical morphology.
• An excellent saturation magnetization property was observed.

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), N2 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 mol/100 g.

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