J Mater Sci Technol ›› 2001, Vol. 17 ›› Issue (03): 293-298.

• Research Articles •     Next Articles

Preparation, characterization and luminescent properties of MCM-41 type materials impregnated with rare earth complex

Lianshe FU, Hongjie ZHANG, Philippe Boutinaud   

  1. Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China...
  • Received:2000-11-21 Revised:1900-01-01 Online:2001-05-28 Published:2009-10-10
  • Contact: Lianshe FU

Abstract: Hybrid materials incorporating Eu-(TTA)(3). 2H(2)O (7hereafter designated as Eu-TTA, with TTA: thenoyltrifluoroacetone) in unmodified or modified MCM-41 by 3-aminopropyl-triethoxysilane (APTES) were prepared by impregnation method. The obtained materials were characterized using X-ray diffraction (XRD), IR and diffuse reflectance spectroscopy and luminescence spectra. All the hybrid samples exhibited the characteristic emission bands of EU3+ under UV light excitation at room temperature, and the excitation spectra showed significant blue-shifts compared to the pure rare-earth complex. Although the red emission intensity in the modified hybrid was almost the half of the red emission intensity in the pure Eu-TTA complex at room temperature, the hybrid showed a much higher thermal stability due to the shielding character of the MCM-41 host.

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