We describe a novel method for the synthesis a new magnetic bromochromate hybrid nanomaterial,
Fe3O4@SiO2@TEA@[CrO3Br], as a catalyst. The physical properties, morphology and magnetic investigations
of magnetic bromochromate hybrid nanomaterials are identified by transmission electron microscopy
(TEM), scanning electron microscopy (SEM) and vibrating sample magnetometer (VSM) techniques. Fourier
transform infrared (FT-IR), elemental analysis, X-ray fluorescence (XRF), X-ray diffraction (XRD) were also
used for structural identification. The quantity of chromium is approximately 0.38%, which confirms to the
immobilization amount of [CrO3Br] and is equal to 0.007 mol/100 g.