Chinese Journal of Applied Chemistry

Chinese Journal of Applied Chemistry

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Synthesis and Characterization of Magnetic and Fluorescent Bifunctional Fe3O4@SiO2@ZrO2:Tb3+ Spherical Nanocomposites

YUAN Senwenab,ZHAO Langb*(),LI Hongtaoa*()   

  1. a School of Chemistry and Life Science,Changchun University of Technology,Changchun 130012,China
    b State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
  • Published:2016-07-21 Online:2016-07-21
  • Contact: ZHAO Lang,LI Hongtao
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21201160), Opening Fund of Key Laboratory of Functional Inorganic Material Chemistry(Heilongjiang University), Ministry of Education

Abstract:

New water-soluble magnetic and fluorescent Fe3O4@SiO2@ZrO2:Tb3+ nanocomposites(NCs) have been successfully synthesized through the in situ synthesized method. The morphology, size, phase, magnetic properties and fluorescent properties of as-synthesized nanoparticles(NPs) were well investigated by scanning electron microscopy(SEM), X-ray diffraction(XRD), Fourier transform infrared spectroscopy(FT-IR), magnetometer, and photoluminescence(PL) spectra. The magnetic and fluorescent NPs consist of silica-coated Fe3O4as the core and the ZrO2:Tb3+ as the shell exhibit superparamagnetism with the saturation magnetization of 36 emu/g and fluorescence properties with four emission bands peaked at approximately 494 nm(5D4→7F6), 549 nm(5D4→7F5), 587 nm(5D4→7F4), and 625 nm(5D4→7F3) of Tb3+ ions. The bifunctional magnetic and fluorescence NCs will show potential applications in biomedical fields in the future.

Key words: water-soluble, bifunctional, magnetic and fluorescent

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