Rare-earth ion doped gadolinium gallium garnet porous nano-belt and preparation method thereof

A technology of gadolinium gallium garnet and rare earth ions, applied in the field of nanomaterial preparation

Inactive Publication Date: 2010-10-06
CHANGCHUN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Currently, there is no GGG:RE 3+ (RE 3+ =Pr 3+ ,Nd 3+ , Sm 3+ , Eu 3+ , Tb 3+ , Dy 3+ , Ho 3+ , Er 3+ , Tm 3+ , Yb 3+ , Yb 3+ / Er 3+ ) related reports on the preparation of porous nanoribbons

Method used

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  • Rare-earth ion doped gadolinium gallium garnet porous nano-belt and preparation method thereof
  • Rare-earth ion doped gadolinium gallium garnet porous nano-belt and preparation method thereof
  • Rare-earth ion doped gadolinium gallium garnet porous nano-belt and preparation method thereof

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Experimental program
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Embodiment 1

[0029] Embodiment 1: with Gd 2 o 3 and Ga 2 o 3 For raw materials, press Gd 3+ with Ga 3+ The amount ratio of the substances is 3:5 and the raw materials are weighed. Heat to dissolve with concentrated nitric acid, and remove excess nitric acid by heating. A certain proportion of Gd(NO 3 ) 3 and Ga(NO 3 ) 3 solution. Weigh an appropriate amount of polyvinylpyrrolidone and add it to the above solution, put it on a digital magnetic stirrer at room temperature and stir for 12 hours, the PVP is completely dissolved, and then put it in a closed container and let it stand for 4 hours until the solution is clear and no bubbles exist, and you get Uniform, transparent and viscous precursor sol. Wherein the nitrate content is 6% (wt%), the PVP content is 30% (wt%), and the DMF content is 64% (wt%). Add the prepared spinning solution into the syringe of the spinning device to carry out electrospinning. The inner diameter of the needle is 1.2 mm, the needle is downward, vertic...

Embodiment 2

[0030] Embodiment 2: with Gd 2 o 3 , Ga 2 o 3 and Eu 2 o 3 For raw materials, press Gd 3+ with Eu 3+ The molar ratio of the substance is 95:5, according to [Gd 3+ +Eu 3+ ] with Ga 3+ The amount ratio of the substances is 3:5 and the raw materials are weighed. Heat to dissolve with concentrated nitric acid, and remove excess nitric acid by heating. A certain proportion of Gd(NO 3 ) 3 , Ga(NO 3 ) 3 and Eu(NO 3 ) 3 solution. Weigh an appropriate amount of polyvinylpyrrolidone and add it to the above solution, put it on a digital magnetic stirrer at room temperature and stir for 6 hours, the PVP is completely dissolved, then place it in a closed container and let it stand for 2 hours until the solution is clear and no bubbles exist, that is, Uniform, transparent and viscous precursor sol. Wherein the nitrate content is 8% (wt%), the PVP content is 28% (wt%), and the DMF content is 64% (wt%). Add the prepared spinning solution into the syringe of the spinning dev...

Embodiment 3

[0031] Embodiment 3: with Gd 2 o 3 , Ga 2 o 3 , Yb 2 o 3 、Er 2 o 3 as the raw material, according to the ratio of the amount of substance to Gd 3+ :Yb3+ :Er 3+ =91:8:1 Weigh the raw materials to meet the requirements of [Gd 2 o 3 +Yb 2 o 3 +Er 2 o 3 ] with Ga 2 o 3 The molar ratio is 3:5. Dissolve it by heating with concentrated nitric acid, and then remove excess nitric acid to obtain nitrate. A certain proportion of Gd(NO 3 ) 3 , Yb(NO 3 ) 3 , Er(NO 3 ) 3 and Ga(NO 3 ) 3 solution. Weigh a certain amount of polyvinylpyrrolidone and add it to the above solution, put it on a magnetic stirrer at room temperature and stir for 6 hours, after the PVP is completely dissolved, then place it in an airtight container and let it stand for 4 hours until the solution is clear and no bubbles exist. That is, a uniform, transparent and viscous precursor sol is obtained. The mass fractions of nitrate, PVP and DMF were 10%, 26% and 64%, respectively. Add the prepare...

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Abstract

The invention relates to a rare-earth ion doped gadolinium gallium garnet porous nano-belt and a preparation method thereof, belonging to the technical field of nanometer material preparation. The method comprises three steps: (1) spinning solution preparation, in which, mass percentage of nitrate is between 6 and 10 percent, mass percentage of PVP is between 26 and 30 percent, and the balance is solvent DMF; (2) PVP/[Gd(NO3)3+Ga(NO3)3+RE(NO3)3] composite nano-belt preparation, in which, static spinning technology is adopted, and the technical parameters are that voltage is between 15 and 18 kV, and the solidification distance is between 10 and 15cm; the inner diameter of a needle nozzle of a syringe is 1.2mm, a vertical spraying mode is adopted, the indoor temperature is between 20 and 30 DEG C, and relative humidity is between 40 and 50 percent; and (3) GGG preparation, wherein heat treatment is performed on the obtained PVP/[Gd(NO3)3+Ga(NO3)3+RE(NO3)3] composite nano-belt by RE3+porous nano-belt to obtain GGG: RE3+porous nano-belt.

Description

technical field [0001] The invention relates to the technical field of nanomaterial preparation, in particular to a preparation method of a rare earth ion-doped gadolinium gallium garnet porous nanobelt. 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. Nanobelt is a kind of nanomaterial with strip structure synthesized by artificial method. Its cross section is a rectangular structure, its thickness is on the order of nanometers, and its length can reach hundreds of microns or even several millimeters. Nanoribbons have attracted extensive attention due to their novel structures different from tubes and wires, as well as unique optical, electrical, and magnetic properties. Although nanobelts lack the high structural strength of cylindrical nanotubes, their production process is simple and controllable, and they can e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B82B1/00B82B3/00
Inventor 董相廷王进贤刘莹刘桂霞于文生
Owner CHANGCHUN UNIV OF SCI & TECH
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