Characterization and Synthesis of Magnetite Nanoparticles by Innovative Sonochemical Method

Magnetite nanoparticles are of great interest for biomedical applications such as contrast agents in MRI, drug delivery, gene therapy and tissue engineering. In this study, in order to obtain nanoparticles with narrow size distribution and united shape, reverse coprecipitation method was done under ultrasound. Structural analysis was done using XRD and FTIR. The XRD result was analyzed using Scherrer method and formation of spinel structure with was confirmed. The crystallite size and lattice parameters were calculated 17.7 nm and 8.358°A respectively. FTIR peaks were observed in wave number and confirms the structure. Magnetic properties of the MNPs was studied using VSM and the saturation magnetization (Ms) and the coercive field of the MNPs is 63.13emu/g and 9.10e respectively which indicates appropriate magnetic properties in biomedical applications. Transmission electron microscope (TEM) was done to observe the morphology of magnetite nanoparticles.