本文選題：稀土配合物 + 熒光��； 參考：《青島大學》2011年碩士論文

【摘要】：自從碳納米管被發(fā)現(xiàn)以來,一維納米材料的研究受到了極大地關注。聚合物-維納米材料作為其一個重要的分支,在最近幾年成為納米科技前沿領域的研究熱點。稀土金屬是重要的發(fā)光基質材料,稀土熒光配合物及其摻雜聚合物的復合材料已經(jīng)廣泛的應用于多種領域,若發(fā)光配合物被引入聚合物基質中制備成納米陣列,研究其性質及用途,這將是一個嶄新的課題。 采用溶液共沉淀法成功制備了稀土銪和鋱的三元配合物,通過紅外光譜(IR)、紫外吸收光譜(UV)及熱重分析(TG)對其組成及結構進行了表征,并對其熒光性能進行了表征,熒光光譜表明兩種稀土配合物發(fā)光性能良好；將自制的配合物摻雜于聚苯乙烯(PS)、聚甲基丙烯酸甲酯(PMMA)、聚氯乙烯(PVC)溶液中,采用流延法制備了復合膜,熱重分析表明聚合物為稀土配合物提供了穩(wěn)定的化學環(huán)境,熒光分析表明復合膜材料與配合物光學性能一致,聚合物的存在沒有破壞其發(fā)光性能。 稀土熒光配合物摻雜聚合物溶液,通過浸潤AAO硬模板方法,成功制備了稀土配合物復合聚合物納米陣列,如稀土金屬銪或鋱配合物復合常規(guī)分子量的PS、PMMA、PVC三種聚合物納米陣列。掃描電鏡(SEM)表明：各種復合納米陣列規(guī)整、直徑均一、與所用AAO模板孔徑一致；能量色散譜(EDS)就其成份做了分析,表明聚合物納米陣列含有稀土金屬元素；透射電鏡(TEM)表明,稀土配合物嵌于納米線或納米管之中,且發(fā)生了團聚現(xiàn)象,并對其結構的形成原因做了探討；熒光測試表明,各種納米陣列均表現(xiàn)出相應稀土離子的特征光譜,且其熒光強度要明顯優(yōu)于純配合物和復合塊狀膜材料；熒光激發(fā)光譜表明,其最大激發(fā)峰位發(fā)生了藍移現(xiàn)象。此外,本文還就上述二現(xiàn)象做了初步探究。
[Abstract]:Since the discovery of carbon nanotubes (CNTs), the study of one-dimensional nanomaterials has attracted much attention.Polymer-dimensional nanomaterials as an important branch of nanotechnology in recent years has become a research hotspot in the field of nanotechnology.Rare earth metals are important luminescent matrix materials. Rare earth fluorescent complexes and composites doped with polymer have been widely used in many fields.It will be a new subject to study its nature and use.The ternary complexes of rare earth europium and terbium were prepared by solution coprecipitation method. The composition and structure of ternary complexes were characterized by IR, UV and TGG, and their fluorescence properties were characterized.The fluorescence spectra showed that the luminescent properties of the two rare earth complexes were good, and the composite membranes were prepared by flow casting method by doping the self-made complexes into the solutions of polystyrene (PS), polymethyl methacrylate (PMMA) and polyvinyl chloride (PVC).The thermogravimetric analysis shows that the polymer provides a stable chemical environment for the rare earth complexes. Fluorescence analysis shows that the optical properties of the composite films are consistent with those of the complexes, and the existence of the polymers does not destroy their luminescence properties.Rare earth complex polymer nanoarrays were successfully prepared by infiltrating AAO hard template with rare earth fluorescent complexes doped in polymer solution, such as rare earth metal europium or terbium complexes with conventional molecular weight PSN PMMA / PVC nanoarrays.Scanning electron microscopy (SEM) showed that all kinds of composite nanoarrays were uniform in diameter and the pore size was the same as the AAO template used. The composition of the composite nanoarrays was analyzed by energy dispersive spectroscopy (EDS), which showed that the polymer nanoarrays contained rare earth metal elements.The rare earth complexes are embedded in nanowires or nanotubes, and agglomeration occurs, and the formation of their structures is discussed. Fluorescence measurements show that all kinds of nanoarrays exhibit the characteristic spectra of rare earth ions.The fluorescence intensity is obviously superior to that of pure complexes and composite bulk films, and the fluorescence excitation spectra show that the maximum excitation peak has a blue shift phenomenon.In addition, this paper also makes a preliminary study on the above two phenomena.
【學位授予單位】：青島大學
【學位級別】：碩士
【學位授予年份】：2011
【分類號】：TB383.1

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