稀土配合物/改性MCM-41杂化发光材料的合成研究

Preparation of hybrid luminescence materials of rare earth complexes/modified MCM-41

采用水热法合成了改性MCM-41中孔分子筛;采用液相沉淀法合成了Eu(Phen)2(Pht)2Cl.H2O和Eu(Phen)2(Sal)(Pht)Cl.H2O两种稀土有机配合物。并将所制备的稀土有机配合物组装到改性MCM-41中,合成了稀土配合物(铕)/改性MCM-41杂化发光材料,采用小角XRD、红外光谱、荧光光谱和TEM、N2吸附-脱附对其结构和荧光性质进行了研究。结果表明,组装体具有MCM-41典型结构并且在组装之后仍保留了MCM-41的孔道结构;其荧光光谱具有Eu3+的特征荧光发射,发光强度大于纯配合物,更有利于实际应用。

Modified msoporous molecular sieves MCM-41（mobile crystalline material for short MCM） was synthesized by hydro-thermal method.Two complexes of rare earth,Eu（Phen）2（Pht）2Cl·H2O and Eu（Phen）2（Sal）（Pht）Cl·H2O,were synthesized by precipitation method.Rare earth complexes were impregnated with modified MCM-41 by solution immersion method and then synthesized rare earth complexes（europium）/modified MCM-41 hybrid materials which were then characterized by SAXRD,IR spectra,fluorescent spectroscopy,TEM and nitrogen physisorption isotherms technologies,for study the structure and fluorescence.It showed that the hybrid materials had typical structure of MCM-41 and retained the same pore structure as MCM-41 after the assembly processing.The fluorescence spectra presented characteristic fluorescence-emission of Eu3＋.Compared with rare earth complexes,the higher emission intensity was observed,which was good for practical application.