合成出了担载稀土有机配合物的无机-有机杂化中孔发光材料(Phen)2Eu/MCM-41,用X射线衍射、红外光谱、荧光光谱和紫外-可见漫反射光谱对所得样品进行了表征,并与相应的纯稀土配合物进行了比较.结果表明,所得杂化材料具有典型的中孔材料MCM-41的结构,且经组装后孔结构保持不变,在紫外光照射下,发出稀土离子的特征谱线,但与纯稀土配合物相比,其激发光谱发生蓝移,稀土Eu3+所处的格位对称性降低,荧光寿命延长.另外,对光谱性质进行了讨论.
A novel hybrid inorganic-organic mesoporous luminescent material (phen)2Eu/MCM-41has been synthesized and characterized by XRD, IR, fluorescence and diffuse reflection spectra. Incomparison with MCM-41, the hybrid mesoporous material has typical structure of MCM-41 andretains the same pore structure as MCM-41 after the assembly process. The hybrid mesoporousmaterial shows characteristic emission spectra of Eu3+ under UV irradiation, but the excitationspectrum has shifted to blue region compared to that of pure rare earth complex. The decrease of sitesymmetry of Eu3+ has been found. The fluorescence lifetime of (phen)2Eu/MCM-41 is longer thanthat of pure rare earth complex. The spectra of hybrid mesoporous material have been discussed.
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