Influence of synthesis parameters on the growth process of magnetic nanoparticles synthesized by microwave-assisted solvothermal method

Abstract

Nanostructures get great attention due to their unique properties which can be applied in preparation of advanced composite materials, medicine, pharmacy or cosmetics. Preparation of structures having properties required for the concrete application presents a great challenge. Kinetic factors dependent on crystal growth conditions considerably influence morphology of formed crystals. It is well known that crystallinity, phase purity, particle size, shape and microstructure strongly affect magnetic properties. Hence, understanding the influence of synthesis parameters on a growth process would be crucial in tailoring the properties of nanomaterials. With regard to the mentioned parameters, particles of pure Fe3O4 or also multiphase systems with high crystallinity and saturation magnetization were prepared by a simple microwave-assisted solvothermal method using microwave pressurized reactor. Presented method enables preparation of particles of various sizes and tuneable magnetic properties and, moreover synthesis of hollow spheres in one step and shore times.