COBALT FERRITE/GRAPHENE OXIDE NANOCOMPOSITE: SYNTHESIS, MAGNETIC PROPERTIES AND MAGNETIC INDUCTIVE HEATING CHARACTERISTIC

Abstract

In this paper, we report the synthesis of CoFe₂O₄/GO nanocomposite by co-precipitation method with the assistant of microwave  irradiation. CoFe₂O₄ nanoparticles after synthesis appeared on the surface of GO. The surface morphologies and structures of the CoFe₂O₄/GO nanocomposite were investigated by powder X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy (FTIR). Mass percent of elements, magnetic properties were investigated and evaluated by energy dispersive X-ray spectroscopy (EDX), vibrating sample magnetometer (VSM). The value saturation magnetization  (M_s) of CoFe₂O₄/GO nanocomposite at 36.2 emu/g. The ability heat of liquid containing of CoFe₂O₄/GO nanocomposite with a concentration of 1 mg/ml is performed at a magnetic field strength of 100-250 Oe, frequency of  290 kHz. The two parameters of temperature and specific absorption rate (SAR) receive the value of 47.6^oC and 50.2 W/g. These two parameters are in good agreement with the requirements of thermotherapy for cancer treatment.