SOL-GEL SYNTHESIS AND CHARACTERIZATION OF ZINC SUBSTITUTED COBALT FERRITE MAGNETIC NANOPARTICLES.

Synthesis and characterization of soft Co1-xZnxFe2O4 magnetic nanoparticles have been synthesized using sol-gel method. The prepared nanoparticles were characterized by using Fourier transform infrared spectroscopy(FTIR),X-ray diffraction(XRD), Thermo gravimetric-Differential Thermal Analysis(TG-DTA),Scanning electron microscopy (SEM),Energy Dispersive x-ray spectrum(EDX) and vibrating sample magnetometer(VSM).Using XRD,it is confirmed that the samples were cubic structure in nature and the mean crystalline size were decreases 16nm to 11nm respectively.The morphology and the quantitative analysis of the prepared analysis of the prepared particles were studied by using SEM and EDX spectrum. The FTIR was used to study the presence of functional groups.Finally,the magnetic properties of the powders have been studied at room temperature from the hysteresis loop measurements using a vibrating sample magnetometer(VSM).From this analysis, the values of the saturation magnetization increase and the coercive field of Co1-xZnxFe2O4 nanoparticles were found to decrease with increasing degree of Zn substitution.