The preparation of Fe3O4 magnetic nanometer particle by co-precipitation method

摘要

In this paper,the Fe3O4 magnetic nanometer particle was prepared by co-precipitation method.At the same time,the samples were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM).The results show that the surface active agent (PEG4000) can be good for the dispersion performance of Fe3O4 magnetic nanometer particle; and the temperature of 80°C is the appropriate drying temperature to prepare the Fe3O4 magnetic nanometer particle.