Preparation of Y2O3: Eu3+ nanosphere powder

A nanosphere and powder technology, applied in chemical instruments and methods, rare earth metal compounds, inorganic chemistry, etc., can solve the problems of poor powder luminescence performance, reduced luminescence intensity, numerous and complicated processes, etc., and achieve easy control of structure and dispersion. The effect of good performance and simple process

Active Publication Date: 2008-11-05
SHANGHAI UNIV
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Problems solved by technology

Although this method is simple, the agglomeration of microspheres in the product is serious, which reduces the luminous intensity (J.Silver, et al.J.Phys.Chem.B2001, 105, 9107-9112)
In addition, the preparation of Y 2 o 3 :Eu 3+ There is also a sol-gel method for spherical particle materials, but this method usually has many and complicated procedures; the powder obtained by the combustion method has poor luminescence performance and requires post-processing
Current common preparation Y 2 o 3 :Eu 3+ The disadvantages shared by the spherical particle material method are that the spherical size is larger and the agglomeration is more serious

Method used

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  • Preparation of Y2O3: Eu3+ nanosphere powder
  • Preparation of Y2O3: Eu3+ nanosphere powder
  • Preparation of Y2O3: Eu3+ nanosphere powder

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Embodiment 1

[0017] (1) Take the following raw materials in chemical mass respectively: 1.0mmol of yttrium nitrate; 0.05mmol of europium nitrate; 20mmol of urea; 0.1mmol of hexadecyltrimethylammonium bromide; In ionized water, a mixed solution is obtained; in this solution, the concentration of yttrium nitrate is 25mmol / L, the concentration of europium nitrate is 1.25mmol / L, and the concentration of urea is 500mmol / L; in addition, add surfactant 0.1mmol;

[0018] (2) Transfer the above-mentioned mixed solution to a round-bottomed flask, and heat to reflux for 50 minutes under stirring with a magnetic stirrer; the heating temperature is 105°C; then cool to room temperature, and centrifuge the resulting white precipitate, and then Wash 3 times with deionized water to remove excess surfactant, and then wash 1 time with absolute ethanol; then dry in an oven at 60°C to obtain a white powder;

[0019] (3) The powder obtained after the above-mentioned drying is raised to 600° C. at a heating rate...

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Abstract

The invention relates to a method for producing Y2O3:Eu3plus nanometer ball powder, which belongs to the technical field of the inorganic nanophase material. The production method of the invention comprises the following steps of: (1) weighting the raw materials (counted by chemical mass): 1.0-3.0 mmol of yttrium nitrate, 0.05-0.15 mmol of europium nitrate, 20-60mmol of urea and 0.1-0.3mmol of cetyl trimethylammonium bromide, and then dissolving the materials in 40-100ml of de-ionized water; (2) placing the mixed solution into a round flask and leading reflux reaction to carry out without heating under the magnetic stirring for 30-60 min; cooling the solution to normal temperature and then carrying out separation, washing and drying for the obtained precipitate; (3) calcining for 2-4 hours under 600-1000 DEG C and finally obtaining the Y2O3:Eu3plus nanometer ball powder with the average particle diameter of 100 nm. The instrument test indicates that the sample obtained by the method of the invention has good dispersibility, uniform article size and has excellent luminous property.

Description

technical field [0001] The present invention relates to a Y 2 o 3 :Eu 3+ The invention discloses a method for preparing nanosphere powder, which belongs to the technical field of inorganic nanometer material preparation technology. Background technique [0002] my country is very rich in rare earth resources, accounting for more than 80% of the world's proven reserves, and its industrial reserves rank first in the world. Rare earth materials have been widely used in high-energy magnetic devices, light-emitting devices, catalysts and other functional materials due to their unique electrical, optical and chemical properties. Among them, Rare has been a treasure trove of luminous materials. Yttrium oxide has good stability and effective energy transfer characteristics, high thermal conductivity, and easy doping of rare earth ions. These advantages make it a good luminescent material matrix (solid luminescence, Jilin Institute of Physics & University of Science and Technolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F17/00
Inventor 张登松施利毅杨浩鹏
Owner SHANGHAI UNIV
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