铽-聚二甲基硅氧烷配合物的荧光特性  

Fluorescence Characterization of Tb^(3+)-Polydimethylsiloxane Complex

作　　者：曹志坚[1] 张俊松[1] 徐娟[1] 陆天虹[1] 李邨[1] 黄晓华[1] 

机构地区：[1]南京师范大学化学与环境科学学院,南京210097

出　　处：《物理化学学报》2006年第3期369-372,共4页Acta Physico-Chimica Sinica

基　　金：江苏省高新技术基金(BG2005040);国家自然科学基金(20471030);国家发改委稀土专项基金(GFZ040628)资助项目

摘　　要：用多种谱学方法证明聚二甲基硅氧烷(PDMS)中的氧原子能与Tb3+键合生成Tb3+和PDMS的配合物(Tb3+-PDMS),并发现生成配合物后,PDMS和Tb3+的荧光发射同时得到增强.荧光强度的增强与配合物中Tb3+含量有关,当配合物中Tb3+的含量为2.0%(w)时,配合物的荧光强度最大,可增强1547%左右.The measurement of the fluorescence, UV-Vis absorption, FTIR and XPS spectroscopy demonstrated that the oxygen atom in polydimethylsioxane（PDMS） can coordinate with Tb^3＋, forming the complex of Tb^3＋ and PDMS complex（Tb3＋-PDMS）. It was found that after Tb^3＋-PDMS is formed, both the fluorescence emissions of PDMS and Tb^3＋ in the complex are enhanced comparing with that of Tb^3＋ and PDMS. The enhancement of the fluorescence intensity of the complex is related to the content of Tb^3＋ in the complex. When the content of Tb^3＋ in the complex is 2.0%（w）, the fluorescence intensity of the complex is largest. The fluorescence intensity can be enhanced by 1547%.

关 键 词：TB^3+ 聚二甲基硅氧烷 荧光光谱 

分 类 号：O641.4[理学—物理化学]