CAJ | 학술논문

为了探索形貌和尺寸对配合物荧光性质的影响,以聚(乙烯基吡咯烷酮)为表面活性剂,制备了两种纳米稀土三元配合物[Eu(BA)3phen和Tb(acac)3phen].采用元素分析、透射电镜、红外吸收光谱、紫外-可见吸收光谱、X射线粉末衍射及X射线光电子能谱对所制备的纳米配合物进行表征.结果表明,所制备的配合物为纳米颗粒,聚(乙烯基吡咯烷酮)的存在能有效地抑制配合物团聚而形成大的颗粒.对纳米稀土配合物的荧光性质研究发现,在紫外光激发下,这两种纳米配合物能分别发射Eu3+和Tb3+离子的特征荧光,而且纳米配合物的荧光性能优于相应的普通配合物.
위료탐색형모화척촌대배합물형광성질적영향,이취(을희기필각완동)위표면활성제,제비료량충납미희토삼원배합물[Eu(BA)3phen화Tb(acac)3phen].채용원소분석、투사전경、홍외흡수광보、자외-가견흡수광보、X사선분말연사급X사선광전자능보대소제비적납미배합물진행표정.결과표명,소제비적배합물위납미과립,취(을희기필각완동)적존재능유효지억제배합물단취이형성대적과립.대납미희토배합물적형광성질연구발현,재자외광격발하,저량충납미배합물능분별발사Eu3+화Tb3+리자적특정형광,이차납미배합물적형광성능우우상응적보통배합물.
To explore the influence of morphology and size upon the photoluminescence properties of rare earth complexes,two nano-sized rare earth ternary complexes [Eu(BA)3phen and Tb(acac)3phen] were synthesized by using poly(vinyl pyrrolidone) as surfactant. The as-prepared nano-complexes were characterized by elemental analysis,TEM,FT-IR spectra,UV-vis spectra,XRD and XPS techniques. The results showed that the products were in nanoparticle dispersion. The presence of PVP can prevent the complex from conglomerating to form larger particles. The photoluminescence examination revealed that,under the excitation of UV light,these complexes exhibited emissions characteristic of Eu3+ and Tb3+ ions. The nano-complexes showed better fluorescence properties than the corresponding common complexes.