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A kind of synthetic method of gd2o3:dy3+ nanoparticles

A synthesis method and nanoparticle technology, applied in nanotechnology, nano optics, nanotechnology, etc., to achieve the effects of improving chemical stability and compression resistance, improving reactivity, and large specific surface area

Active Publication Date: 2016-05-11
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, regarding Dy 3+ Doped with Gd 2 o 3 to produce flower-like Gd 2 o 3 : Dy 3+ The preparation method and properties of nanoparticles have not been reported yet

Method used

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  • A kind of synthetic method of gd2o3:dy3+ nanoparticles
  • A kind of synthetic method of gd2o3:dy3+ nanoparticles
  • A kind of synthetic method of gd2o3:dy3+ nanoparticles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] a Gd 2 o 3 : Dy 3+ The synthetic method of nanoparticle, it is specifically carried out according to the following steps:

[0026] (1) The accurately weighed Gd 2 o 3 and Dy 2 o 3 Add to concentrated HNO 3 , then heated until the solution was clear, and then added an appropriate amount of deionized water to obtain a Gd(NO 3 ) 3 and Dy(NO 3 ) 3 transparent solution; among them, Dy 3+ The dosage is Gd 3+ 0.5% of the amount used, the percentage is a mole percentage;

[0027] (2) Measure urea and PEG, add deionized water under stirring to form a solution; wherein, the amount of urea and PEG is set according to the following ratio Gd 3+ : urea: PEG=1:1:1, its ratio relation is molar ratio;

[0028](3) Mix the solutions prepared in steps (1) and (2) under stirring to form a mixed solution, then gradually heat it to 50-80°C to evaporate to form a transparent solution and keep it warm for 2 hours, then continue to heat up to 100-120°C Evaporate to obtain a solidi...

Embodiment 2

[0037] a Gd 2 o 3 : Dy 3+ The synthetic method of nanoparticle, it is specifically carried out according to the following steps:

[0038] (1) The accurately weighed Gd 2 o 3 and Dy 2 o 3 Add to concentrated HNO 3 , then heated until the solution was clear, and then added an appropriate amount of deionized water to obtain a Gd(NO 3 ) 3 and Dy(NO 3 ) 3 transparent solution; among them, Dy 3+ The amount of Gd 3+ 1% of the amount used, the percentage is a mole percentage;

[0039] (2) Measure citric acid and ABS, add deionized water under stirring to form a solution; wherein, the amount of citric acid and ABS is set according to the following ratio Gd 3+ : citric acid: ABS=1:2:2, its ratio relation is molar ratio;

[0040] (3) Mix the solutions prepared in steps (1) and (2) under stirring to form a mixed solution, then gradually heat it to 70-75°C to evaporate to form a transparent solution and keep it warm for 3 hours, then continue to heat up to 100-110°C Evaporat...

Embodiment 3-7

[0043] Embodiment 3-7 is carried out by following materials, technique and parameter, and all the other settings are identical with embodiment 1:

[0044]

[0045] The result shows: the Gd that embodiment 3-7 makes 2 o 3 : Dy 3+ The appearance of nanoparticles is flower-like.

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PUM

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Abstract

The invention relates to a synthetic method of Gd2O3:Dy3+nanoparticles. The synthetic method comprises the following steps in sequence: (1) adding Gd2O3 and Dy2O3 into an HNO3 solution and heating till the solution is clear; (2) taking urea or citric acid as a ligand, taking polyethylene glycol, sodium alkyl benzene sulfonate, sodium dodecyl sulfate or hexadecyl trimethyl ammonium bromide as a dispersing agent and adding water to prepare a solution; (3) stirring and mixing the solutions obtained in the steps (1) and (2) to form a mixed liquid, heating the mixed liquid to be 50-80 DEG C, gradually evaporating to form a transparent solution, performing heat preservation for at least two hours, then continuously raising the temperature to be 100-120 DEG C and evaporating to obtain cured gel, heating the cured gel for spontaneous combustion to obtain a complex formed by metal ions and the ligand; (4) grinding the complex obtained by combustion, then raising the temperature to be at least 600 DEG C, performing heat preservation for at least two hours and finally cooling. The synthetic method provided by the invention is simple and easy to carry out.

Description

technical field [0001] The invention relates to the technical field of inorganic nanomaterials, in particular to a Gd 2 o 3 : Dy 3+ Synthesis of nanoparticles. Background technique [0002] Due to their unique 4f electron layer configuration, rare earth elements can exhibit many optical, electrical, and magnetic properties, and are widely used in light-emitting devices, magnets, catalysts, and biological probes. Due to the small size effect, quantum confinement effect, and surface effect of nanomaterials, the preparation methods of rare earth compound nanoparticles have also received extensive attention. Among them, the rare earth ion Dy 3+ The electronic configuration is 4f, with abundant energy levels, and its luminescence is mainly composed of the blue region ( 4 f 9 / 2 → 6 h 15 / 2 ) and the yellow light zone ( 4 f 9 / 2 → 6 h 13 / 2 ) composed of some narrow emission bands, the latter’s △J=2, which belongs to the ultrasensitive transition, and is greatly affected b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/78B82Y20/00B82Y30/00
CPCC09K11/7769
Inventor 彭玲玲刘碧桃吉刚韩涛黄敏赵聪
Owner CHONGQING UNIV OF ARTS & SCI