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采用浸渍的方法在MCM 41和HMS介孔材料孔内组装[Eu(bpy)2 ]3+ (bpy: 2, 2 联吡啶).所得介孔复合材料经XRD、ICP等离子发射光谱、IR、N2 吸附实验及光致发光谱进行了表征.实验结果表明:与介孔材料母体相比,组装稀土配合物后的介孔复合材料的BET比表面积、孔径和孔容均有所下降;组装稀土配合物的介孔复合材料在氙光源激发下,均发射出特征的Eu3+光致发光谱;与组装稀土配合物的HMS介孔复合材料相比,组装后的MCM 41介孔复合材料具有较高的光致发光效率.MCM 41介孔材料是一种比HMS合适的载体,有助于增强介孔材料孔内组装稀土配合物的光致发光效率.
The [Eu (bpy) 2] 3+ (bpy: 2, 2-bipyridyl) was assembled in MCM 41 and HMS mesoporous materials by impregnation method. The obtained mesoporous composite was characterized by XRD, ICP, IR, Adsorption experiments and photoluminescence spectra were carried out.The experimental results show that the BET specific surface area, pore size and pore volume of the mesoporous composite after the assembly of the rare earth complex are decreased compared with the matrix of the mesoporous material. The mesoporous composite emits the characteristic Eu3 + photoluminescence spectrum under the excitation of xenon light source. Compared with HMS mesoporous composite assembled with rare earth complex, the assembled MCM 41 mesoporous composite has higher photoinduced Luminous efficiency .MCM 41 mesoporous material is a suitable carrier than HMS, help to enhance the photoluminescence efficiency of the assembled rare earth complexes within the pores of mesoporous materials.