CRCU

Chemical Research in Chinese Universities ›› 2006, Vol. 22 ›› Issue (3): 274-277.

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Synthesis and Fluorescence Properties of Eu2+-Doped KMgF3 Nanoparticles

YAN Jing-hui1, ZHANG Ming1,2, LIAN Hong-zhou2, LIU Jie2, LI Zhong-tian1, CAO Jie1, SHI Chun-shan2   

  1. 1. College of Materials and Chemical Engineering, Changchun University of Science and Technology, Changchun 130022, P. R. China;

    2. Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry,Chinese Academy of Sciences, Changchun 130022, P. R. China
  • Received:2005-08-22 Online:2006-06-24 Published:2011-08-06
  • Supported by:

    Supported by the National Natural Science Foundation of China(No. 90201032) and the Science and Technology Department of Jilin Province(No. 20050507).

PDF (PC)

Abstract: The phase diagram of a cetyltrimethyl ammonium bromide (CTAB)/n-butanol/n-octane/KNO3-Mg (NO3)2 system was drawn. Nanoparticles of Eu2+ -doped KMgF3 were prepared from the quaternary microemulsions of cetyltrimethyl ammonium bromide(CTAB), n-butanol, n-octane and water. The X-ray diffraction(XRD) patterns were indexed to a pure KMgF3 cubic phase. The environmental scanning electron microscopic(ESEM) images show the presence of spherical Eu2+ -doped KMgF3 nanoparticles with a diameter of ca. 20 nm. The emission of KMgF3: Eu2+ nanoparticles peaks at 360 nm. The excitation band was observed at 250 nm with a blue shift of ca. 70 nm compared with that of KMgF3: Eu2+ single crystal. The preparation method of nano-KMgF3: Eu2+/PMMA composite films was inquired into.

Key words: Fluoride, Microemulsion phase diagram, Nanostructure, X-ray diffraction, Luminescence