Hydrothermal Synthesis of Magnetic Microspheres Using Pollen Grains as Templatet

摘要

Magnetite (Fe3O4) microspheres were hydrothermal synthesized by using the rapeseed pollen grains as the template. The as-prepared Fe2O4 microspheres were characterized by scanning electron microscopy and X-ray diffraction spectrometer, at the same time its magnetism was verified by a simple observation method. The results indicated that the microspheres had not only the magnetic properties, but also have a hierarchical network surface morphology like the pollen grains. The selective permeation of the pollen wall and the rational designed hydrothermal condition were suggested to be the critical factors for the preparation of this microspheres.