新型铽配合物为活性中心的复合材料的制备及其荧光性质研究

新型铽配合物为活性中心的复合材料的制备及其荧光性质

研究

侯娜;闫振忠

【期刊名称】《科学技术与工程》

【年(卷),期】2011(011)002

【摘要】合成新型羧酸类配体:3,6-双[(2'-甲酸苯氧)甲基]-1,2,4,5-四甲苯(H2L)及其铽配合物,利用溶胶-凝胶法制备了新型复合材料SiO2:[Tb2L3(4H2O].通过元素分析、核磁共振谱、红外光谱和差热-热重分析进行表征.荧光性质研究表明,复合材料显示出Tb3+的特征荧光,与铽配合物的荧光强度比较发现,复合材料的荧光强度是铽配合物荧光强度的8倍.%Silica-based composite materials encapsulating luminescent terbium complex of a new podand-type polyaromatic acid ligand, 3,6-bis [ ( 2-carboxyphenoxy ) methyl ]-1,2,4,5-tetramethylbenzene ( H2L ), SiO2:[ Tb2L3 · 4H20] was prepared by the sol-gel process, which was characterized by the elemental analyses, 1H NMR spectra, IR spectra and TG-DTA. For the SiO2: [ Tb2L3 · 4H2O] composites, the energy transfer from the ligand to Tb ions took place smoothly, as for the original complex, and consequently strong green emission based on Tb3+was observed. Compared with the complex itself, the unit-mass luminescence intensity of the composite material is enhanced 8 times.

【总页数】4页(242-245)

【关键词】羧酸型配体;铽配合物;复合材料;荧光性质