Influence of Organic Additives on Shape and Adsorbing Properties of Nano-Fe3O4 Particles

Nano-Fe3O4 powders were prepared by chemical co-precipitation method. The granularity, morphology and absorbing properties of the magnetite nanoparticles were characterized by XRD, SEM, TEM and complex permeability. The effects of organic additives to the granularity, morphology and microwave absorption property of nanosized magnetic Fe3O4 were studied. The results show that the organic additives have great influence on the morphology of nano-Fe3O4 particles. Spherical nano-Fe3O4 is prepared by oxalic acid. And the absorption property of nano-Fe3O4 is better.