溶剂热法制备一维稀土氟化物发光纳米材料与表征

发布时间：2018-04-19 23:13

本文选题：溶剂热法 + 纳米棒　；参考：《长春理工大学》2011年硕士论文

【摘要】：无机纳米材料的形貌、尺寸及其微观结构将会影响其性质和应用,具有一定形貌和微观结构的无机纳米材料(如：纳米线、纳米棒、纳米束等)的合成及其性能的表征也将影响新型无机功能材料的研究。由于稀土离子独特的电子层结构,使得稀土发光材料广泛用于照明、显示、检测三大领域。氟化物因其多样性的结构特点和特殊的物理化学特性,成为了优良的发光基质。因此,利用溶剂热法制备稀土离子掺杂的稀土氟化物纳米棒及其性质研究,将是一个重要而又新颖的研究课题。本文采用XRD、FESEML、EDS和荧光光谱等分析技术对样品进行了系统地表征,结果表明,所制备的稀土离子掺杂的稀土氟化物纳米棒均具有良好的发光性质,获得了一些有意义的结果,为稀土纳米发光材料的进一步深入研究奠定了一定基础。主要研究内容归纳如下： 1、利用溶剂热法制备了La(OH)3:Eu3+纳米棒,选用NH4HF2作为氟源,利用固相反应,制备了LaF3:Eu3+纳米发光材料,并研究了其发光性能。 2、PEG辅助的溶剂热法,制备出了Y(OH)3:Eu3+纳米棒。选用NH4HF2作为氟源,利用固相反应,制备了YF3:Eu3+纳米发光材料,并研究了其发光性能。 3、利用溶剂热法制备了Y(OH)3:Tb3+纳米棒,选用NH4HF2作为氟源,利用固相反应,制备了YF3:Tb3+纳米发光材料,并研究了其发光性能。 4、利用溶剂热法制备了Gd(OH)3:Eu3+纳米棒,选用NH4HF2作为氟源,利用固相反应,制备了GdF3:Eu3+纳米发光材料,并研究了其发光性能。
[Abstract]:The morphology, size and microstructure of inorganic nanomaterials will affect their properties and applications. Inorganic nanomaterials with certain morphology and microstructure (such as nanowires, nanorods, etc.) The synthesis and characterization of nanobeams will also affect the study of new inorganic functional materials. Due to the unique electronic structure of rare earth ions, rare earth luminescent materials are widely used in lighting, display and detection. Because of its diverse structure and special physical and chemical properties, fluoride has become an excellent luminescent substrate. Therefore, the preparation and properties of rare earth fluoride nanorods doped with rare earth ions by solvothermal method will be an important and novel research topic. In this paper, the samples were characterized systematically by means of XRDX FESEML EDS and fluorescence spectra. The results show that the rare earth ions doped rare earth fluoride nanorods have good luminescence properties, and some meaningful results have been obtained. It lays a foundation for the further study of rare earth nano luminescent materials. The main research contents are summarized as follows: 1. La(OH)3:Eu3 nanorods were prepared by solvothermal method, NH4HF2 was selected as fluorine source, LaF3:Eu3 nanoluminescence materials were prepared by solid state reaction, and their luminescence properties were studied. Y(OH)3:Eu3 nanorods were prepared by Y(OH)3:Eu3-assisted solvothermal method. Using NH4HF2 as fluorine source, YF3:Eu3 nanocrystalline luminescent materials were prepared by solid state reaction and their luminescence properties were studied. 3. Y(OH)3:Tb3 nanorods were prepared by solvothermal method, NH4HF2 was selected as fluorine source, YF3:Tb3 nanoluminescence materials were prepared by solid state reaction, and their luminescence properties were studied. (4) Gd(OH)3:Eu3 nanorods were prepared by solvothermal method, NH4HF2 was selected as fluorine source, GdF3:Eu3 nanoluminescence materials were prepared by solid state reaction, and their luminescence properties were studied.
【学位授予单位】：长春理工大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TB383.1

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