The Effect of Ultrasound Power on Magnetite Nanoparticles Prepared in the Presence of Polypyrrole by Electrocrystallization

The effect of ultrasound power on structure and magnetic properties of iron oxide nanoparticles synthesizedfrom iron electrodes by electrooxidation method was investigated. Samples made in aqueous solution in the absence orpresence of polypyrrole as organic stabilizer. All products were characterized by X-ray diffraction, scanning electronmicroscopy, and magnetometry. The formation of spinel structure of magnetite was confirmed by XRD. Based onVSM results, the specific magnetization of the magnetite nanoparticles ranges from 47 to 67 Am2kg-1 at roomtemperature, depending on the ultrasound power, particle size, and nonmagnetic organic material. SEM images showthe ultrasound has a significant influence on size, morphology and agglomeration of theelectrocrystallizednanoparticles

کلیدواژه ها:

Magnetite nanoparticles ، Polypyrrole ، Sonoelectrocrystallization ، Magnetization ، Structural properties