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Microwave Assisted Solvothermal Synthesis of Magnetic Fe3O4 Micro Spheres and Spherical Aggregates at Low Temperature

In this study, magnetic microspheres Fe3O4 were fabricated by a simple microwave assisted-solvothermal method. The obtained products were characterized by X- ray diffraction [XRD], which exhibit the peaks of cubic phase magnetite iron oxide [Fe3O4]. The position and relative intensity of all diffraction peaks match well with those of the commercial magnetite powder (Aldrich catalog No. 31,006-9). semi electron microscopy [SEM], transmission electron microscopy (TEM) and high resolution transmission electron microscopy (HRTEM) techniques applied to study the structure, phase purity and morphology, respectively and obtained results show that particles are spherical in shape and each sphere consists of aggregation of many small spheres. On the basis of obtained experimental results possible formation mechanism was discussed.