Chem. J. Chinese Universities ›› 2017, Vol. 38 ›› Issue (10): 1709.doi: 10.7503/cjcu20170132

• Articles: Inorganic Chemistry • Previous Articles     Next Articles

Thermal Reduation Preparation of Co2+/Dy3+ Doped Cubic Fe3O4 and Their Magnetic Targeting Retention

YANG Yuxiang1,*(), LIU Yicheng1, ZHAO Min1, YUAN Hongming3, YAO Pingping1, HUANG Yan1, NI Chaoying2,*()   

  1. 1. School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China
    2. Department of Materials Science and Engineering, University of Delaware, DE 19716, USA
    3. College of Chemistry, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,Jilin University, Changchun 130012, China
  • Received:2017-03-07 Online:2017-10-10 Published:2017-09-22
  • Contact: YANG Yuxiang,NI Chaoying E-mail:yxyang@ecust.edu.cn;cni@udel.edu
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.20577010, 20971043)

Abstract:

Co2+/Dy3+ doped Fe3O4 nanoparticles(MxFe3-xO4) were synthesized by the thermal reduction and co-precipitation methods . The structure, morphology and magnetic properties of MxFe3-xO4 were characterized by means of X-ray diffractometer(XRD), transmission electron microscope(TEM) and vibrating sample magnetometer(VSM). The results show that the dopants did not change the maternal symmetry, and the maternal morphology gradually transformed from cube to sphere. The MxFe3-xO4 cubic magnetic particles have maximum saturation magnetization of 76.65 and 70.21 A·m2·kg-1, respectively, when Co2+ actual doping amount is equal to 0.44 and Dy3+ actual doping amount is equal to 0.05. Compared with the superparamagnetic Fe3O4, the cubic high magnetic doped Fe3O4 nanoparticles showed a high retention rate in the simulated magnetic fluid magnetic targeting experiment in vitro.

Key words: Cubic Fe3O4, Doping, Magnetic property, Magnetic targeting in vitro, Lattice constant

CLC Number: 

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