Synthesis and Characterization of hollow Magnetite Microspheres

The used of magnetites increased in the last few years due their interesting applications in different fields.  Two different methods were used for the synthesis of the monodisperse hollow magnetites.  The first one is the reflux method at an inert atmosphere.  The second one includes two steps; one of them is a solvothermal method to produce the synthesis at different pressure.  Both synthesis processes were compared to determine which one is more efficient and able to use as a process for the synthesis of the hollow magnetites.  The morphologies and properties of the magnetite microsphere were been seen by an emission scanning electron microscopy (SEM). The results demonstrate that the conditions of the synthesis, specially the temperature, can affect the morphology, size and magnetic properties of the magnetites.