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含稀土三元配合物高分子纳米纤维的制备与荧光性质研究

ISSN号：1000-4343
期刊名称：《中国稀土学报》
时间：0
分类：O614[理学—无机化学;理学—化学] O482.3[理学—固体物理;理学—物理]
作者机构：[1]山东科技大学化学与环境工程学院,山东青岛266510, [2]山东大学化学与化工学院,胶体与界面化学教育部重点实验室,山东济南250100, [3]浙江清华长三角研究院,浙江长兴313100, [4]山东理工大学材料科学与工程学院,山东淄博255049
相关基金：国家自然科学基金重点项目（20431010）,山东省博士后创新基金项目（200703055）和山东科技大学“春蕾计划”项目（06540040701）资助

作者：王冬梅[1,2], 王亮[1], 董怀[3], 柳巍[4], 姜建壮[2]

关键词： Eu(DBM)3·H2O, Eu(DBM)4·CPC, 聚乙烯基吡咯烷酮, 纳米纤维, 荧光性质, Eu（DBM）3 · H2O, Eu（DBM）4 · CPC, PVP, Nanofiber, Fluorescent property

中文摘要：

通过静电纺丝技术，将发光良好的稀土配合物Eu（DBM）3·H2O和Eu（DBM）4·CPC纳米微粒复合到水溶性的聚乙烯基毗咯烷酮中，制备了具有稀土铕离子红色特性荧光的聚合物纳米纤维。通过对稀土配合物以及聚合物纳米纤维样品扫描电镜和透射电镜的测试，发现当稀土配合物复合到聚合物纳米纤维中后，由于与聚乙烯基吡咯烷酮乙醇溶解性良好，其微观结构发生了变化，得到了50～100nm左右的比较均匀的线状结构。同时，通过对稀土配合物以及聚合物纳米纤维样品的荧光激发、发射光谱及荧光寿命进行研究，表明稀土配合物在聚合物纳米纤维中比其在粉末状有更高的发光强度及更长的荧光寿命，其原因在于高分子纳米纤维为稀土配合物提供了较稳定的化学环境。

英文摘要：

Through electrospinning technique, the lanthanide complex with good luminescent property, Eu（DBM）3 · H2O and Eu（DBM）4 · CPC, were incorporated into water soluble polymer PVP, and the polymer nanofibers with red characteristic fluorescent light from europium ion were obtained. The microstructure of the rare earth complexes and polymer nanofibers product was studied by scanning electron microscopy and transmission electron microscopy, and the result indicated that when the rare earth complexes were compounded into the polymer nanofibers, it＇s microstructure changed due to its good compatibility with PVP ethanol solution, and the polymer nanofibers with one dimension were of 50-100 nm relatively uniform line shape structure. In addition, the fluorescence excitation and emission spectra and fluorescence lifetime of the rare earth complexes and polymer nanofibers product were studied. Photoluminescence measurements indicate that the lanthanide complexes show superior emission lines, higher intensities and longer fluorescent lifetime in the polymer nanofibers than in the corresponding pure complex powders, which is due to the composite nanofibers providing a relatively stable environment for lanthanide complexes.