中文摘要：

合成了两种双功能介孔磁/光纳米复合材料。磁性Fe3O4纳米粒子作为核被包覆于介孔二氧化硅纳米球中,稀土铽和铒配合物分别通过硅烷化的配体PABA-Si和phen-Si共价嫁接于介孔球的网络中。研究了所制备的双功能纳米复合材料的结构、磁性、荧光发射性质,结果表明,双功能纳米复合材料具有介孔结构、超顺磁特性和相应稀土配合物的特征荧光发射性质。

英文摘要：

Two bifunctional mesoporous magnetic/luminescent nanocomposites were fabricated.Magnetic(Fe 3 O 4) cores encapsulated in the mesoporous silica nanospheres and the terbium and erbium complex covalently bonded to the framework of mesoporous silica through the chelate ligand N-(4-benzoic acid-yl),N’-(propyltriethoxysilyl)(PABA-Si) and 5-[N,N-bis-3-(triethoxysilyl) propyl]ureyl-1,10-phenanthroline(phen-Si),respectively.The structure,magnetism,and photoluminescence properties of the obtained bifunctional nanocomposites were investigated.The results reveal that the nanospheres possess mesostructures,superparamagnetic behavior,and characteristic luminescence properties of the corresponding lanthanide complexes.