Acta Phys. -Chim. Sin. ›› 2017, Vol. 33 ›› Issue (11): 2310-2316.doi: 10.3866/PKU.WHXB201706093

• ARTICLE • Previous Articles    

A Time-Saving Method to Prepare Monodisperse Fe3O4 Microspheres with Controllable Sizes and Morphologies

Dan WANG1,3,Chuan-Yong LIU2,Yue LONG3,Kai SONG3,*(),Wei HUANG1   

  1. 1 Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials(IAM), Jiangsu National Synergetic Innovation Centre for Advanced Materials(SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, P. R. China
    2 Beijing National Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
    3 Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
  • Received:2017-04-18 Published:2017-08-25
  • Contact: Kai SONG
  • Supported by:
    National Natural Science Foundation of China(U1430128)


Monodisperse Fe3O4 microspheres with tunable diameters and high magnetic saturation were synthesized by a solvothermal reduction method. It was found that the morphology and structure of the Fe3O4 microspheres could be tuned by simply altering the amount of the reactants such as ferric chloride, sodium acetate, water, and the reaction time. The Fe3O4 microspheres obtained via this method possessed high purity, crystallinity, and a nearly spherical shape. Furthermore, they were monodispersed and no aggregation was found. Such monodisperse Fe3O4 microspheres had tunable diameters of 400-700 nm and the fabrication time was only 2-4 h. The products showed high magnetic saturation values, and their yields were typically more than 94%.

Key words: Monodisperse Fe3O4 microspheres, Solvothermal, Time-saving, Tunable