【摘要】 采用水热法合成改性MCM-41介孔分子筛;采用液相沉淀法合成了以磺基水杨酸及邻菲罗啉作为双配体的铕的配合物,找到其发光效果最好的配比,即n(Eu)∶n(SSA)∶n(phen)=1∶2∶1,并将发光效果最好的稀土配合物组装到改性后的MCM-41中,合成了稀土配合物(Eu)/改性MCM-41杂化发光材料,采用紫外光谱分析、元素分析、小角XRD、红外光谱、荧光光谱和TGA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。改性MCM-41后组装稀土配合物的发光效果更佳,热稳定性更好,更有利于实际应用。更多还原

【Abstract】 Modified MCM-41mesoporous molecular sieves were synthesized by hydrothermal method.Lanthanide complexes Eu-SSA-phen was synthesized by liquid precipitation method,the best ratio of sulfosalicylic acid and o-phenanthroline these two ligands was found,n(Eu)∶n(SSA)∶n(phen)=1∶2∶1.Finally,lanthanide luminescent complexes with the best glowing effect was assembled into modified MCM-41,and then synthesized lanthanide complexes(Eu)/modified MCM-41hybrid materials which were then characterized by SAXRD,IR spectra,fluorescent spectroscopy,thermal gravimetric analysis,for study the structure and fluorescence properties.It showed that the hybrid materials had typical structure of MCM-41and retained the same pore structure as MCM-41after the assembly processing.The fluorescence spectra presented characteristic fluorescence-emission of Eu3+.Compared with lanthanide complexes,the higher emission intensity and better thermal stability was observed,which was good for practical application.更多还原