Abstract
Chitosan modified Magnetite nanoparticles (Fe3O4) were synthesized using solvo-thermal method. The structural characterization of the samples was performed by using x-ray diffraction (XRD) technique. The crystallite size of both bare and chitosan modified Nanoparticles were calculated from Scherrer’s formula and W-H plot which are found to be in the range of 20–30 nm. Transmission Electron Microscopy (TEM) analysis of the Chitosan (C) coated Fe3O4 reveals the emergence of almost spherical shape with agglomeration. The magnetization values obtained from VSM study at room temperature of both Fe3O4 and C-Fe3O4 are 71.871 emu/g and 60.275 emu/g respectively. The efficiency of Magnetic hyperthermic ability is also measured by calculating specific absorption rate (SAR) for both nanoparticles. At 187.09 Oe, Fe3O4 nanoparticles show maximum SAR of 173.6 W/g, while Chitosan modified Fe3O4 magnetic nanoparticles show a SAR of 161.16 W/g.
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