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Europium (Eu) ion doped Y7O6F9 nanobelt and preparation method thereof

A Y7O6F9, nanobelt technology, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc.

Inactive Publication Date: 2012-05-23
CHANGCHUN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Currently, no Y 7 o 6 f 9 :Eu 3+ Nanobelt reports

Method used

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  • Europium (Eu) ion doped Y7O6F9 nanobelt and preparation method thereof
  • Europium (Eu) ion doped Y7O6F9 nanobelt and preparation method thereof
  • Europium (Eu) ion doped Y7O6F9 nanobelt and preparation method thereof

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Experimental program
Comparison scheme
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Embodiment

[0021] Embodiment: take by weighing 1g Y 2 o 3 and 0.0820g Eu 2 o 3 , the molar ratio of the two is 19:1, that is, the molar percentage of europium ions is 5%, evaporated after dissolving with dilute nitric acid, and obtains Y(NO 3 ) 3 and Eu(NO 3 ) 3 Mix the crystals, add 9.2178g of DMF solvent, and then add 2.5925g of PVP to the above solution, magnetically stir at room temperature for 4h, and let stand for 2h to form a spinning solution. The mass percentages of the components of the spinning solution are as follows: the content of rare earth nitrate is 18%, the content of PVP is 18%, and the content of solvent DMF is 64%. Add the prepared spinning solution into the liquid storage tube of the spinning device for electrospinning, the nozzle diameter is 0.7mm, the angle between the nozzle and the horizontal plane is adjusted to 15°, a DC voltage of 13kV is applied, the curing distance is 15cm, and the room temperature is 18 ~25℃, relative humidity 50%~70%, get PVP / [Y(NO...

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Abstract

The invention relates to a europium (Eu) ion doped Y7O6F9 nanobelt and a preparation method thereof, belonging to the technical field of nano material preparation. Rare-earth fluoride nanobelts are prepared by the existing electrospinning technology. The method comprises the following three steps: (1) preparing a Y2O3:5%Eu3+nanobelt: preparing a composite PVP / [Y(NO3)3+Eu(NO3)3] nanobelt by adopting the electrospinning technology and then carrying out heat treatment on the composite nanobelt to obtain the Y2O3:5%Eu3+nanobelt; (2) preparing a YF3:5%Eu3+nanobelt: taking ammonium bifluoride as a fluorinating reagent and fluorinating the Y2O3:5%Eu3+nanobelt by a double crucible method to obtain the YF3:5%Eu3+nanobelt; and (3) preparing a Y7O6F9:5%Eu3+nanobelt: placing the YF3:5%Eu3+nanobelt into a muffle furnace and heating the YF3:5%Eu3+nanobelt in air atmosphere at the temperature of 580 DEG C for 9 hours to obtain the Y7O6F9:5%Eu3+nanobelt. The Y7O6F9:5%Eu3+nanobelt has the width of 1.9-3.7 mu m, thickness of 185nm and length of more than 300 mu m. The Eu ion doped Y7O6F9 nanobelt is a novel important red nano fluorescent material and has a broad application prospect.

Description

technical field [0001] The invention relates to the technical field of preparation of nanomaterials, in particular to europium ion doping Y 7 o 6 f 9 Nanobelts and methods of making them. Background technique [0002] The preparation and properties of inorganic nanoribbons are currently one of the frontier hotspots in materials science, condensed matter physics, chemistry and other disciplines. Nanoribbon is a kind of nanomaterial with ribbon structure synthesized by artificial method. Its cross section is a rectangular structure, its thickness is on the order of nanometers, its width can reach micron level, and its length can reach hundreds of microns, even several mm. Nanobelts have attracted great attention because of their novel structures different from tubes and wires, and their unique optical, electrical, and magnetic properties. [0003] Rare earth oxyfluorides have low phonon energy, high luminous quantum efficiency, good thermal stability and environmental sta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F9/08C09K11/86B82Y30/00B82Y40/00
Inventor 董相廷侯远王进贤刘桂霞于文生赵恩贵
Owner CHANGCHUN UNIV OF SCI & TECH