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Synthesis method for synthesizing monoclinic phase LaPO4: Eu nano-luminescent material by low-temperature hydrothermal method

A technology of luminescent materials and synthesis methods, applied in luminescent materials, nanotechnology, nanotechnology and other directions, can solve the problems of unfavorable large-scale production and application, complex co-processing, high synthesis temperature, and achieve easy industrial production, good repeatability, The effect of low synthesis temperature

Inactive Publication Date: 2014-02-12
INNER MONGOLIA UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These methods mainly have shortcomings such as high synthesis temperature or complicated co-process, high raw material price, and low conversion rate, which are not conducive to large-scale production and application.

Method used

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  • Synthesis method for synthesizing monoclinic phase LaPO4: Eu nano-luminescent material by low-temperature hydrothermal method
  • Synthesis method for synthesizing monoclinic phase LaPO4: Eu nano-luminescent material by low-temperature hydrothermal method
  • Synthesis method for synthesizing monoclinic phase LaPO4: Eu nano-luminescent material by low-temperature hydrothermal method

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Experimental program
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Effect test

Embodiment 1

[0012] Take 9.5mL0.1mol / L La(NO 3 ) 3 solution and 5mL0.01mol / L Eu(NO 3 ) 3 The solution was mixed evenly, and 0.5 mmol of (NH 4 ) 2 C 2 o 4 , stirred for 20mim, added dropwise 10mL of 0.1mol / L H 3 PO 4 , stirred for 20mim, and transferred to the reaction kettle. React at 150°C for 12 hours. After the reaction, the product is washed three times with distilled water and absolute ethanol, and dried at 60°C to obtain a white powder.

Embodiment 2

[0014] Take 9.5mL0.1mol / L La(NO 3 ) 3 solution and 5mL0.01mol / L Eu(NO 3 ) 3 The solution was mixed evenly, and 0.25mmol of (NH 4 ) 2 C 2 o 4 , stirred for 20mim, added dropwise 10mL of 0.1mol / L H 3 PO 4 , stirred for 20mim, and transferred to the reaction kettle. React at 160°C for 10 hours. After the reaction, the product is washed three times with distilled water and absolute ethanol, and dried at 60°C to obtain a white powder.

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Abstract

The invention relates to a synthesis method for synthesizing a monoclinic phase LaPO4: Eu nano-material by a low-temperature, low-cost and simple hydrothermal method, and belongs to the field of rare earth phosphate nano-materials. The synthesis method provided by the invention comprises the following steps: uniformly mixing a certain amount of 0.1mol / L La(NO3)3 and 0.01mol / L Eu(NO3)3, adding 0.25-0.5mmol of (NH4)2C2O4, stirring for 20-30min, further dropwise adding 10ml of 0.1mol / L H3PO4, enabling the molar ratio of phosphate radicals to rare earth ions in a reaction system to be 1, stirring for 20-30min, performing hydrothermal reaction for 10-12h in a temperature range of 150-160 DEG C, and further obtaining monoclinic phase LaPO4: Eu powder. The synthesis method provided by the invention has the characteristics of low price of raw materials, no need of using an expensive surfactant as a template, no use of organic solvents, no environmental pollution, low reaction temperature, energy conservation, easiness in industrial production and the like.

Description

Technical field: [0001] The invention belongs to the field of rare earth phosphate nanomaterials and relates to a monoclinic phase LaPO 4 : Synthesis method of Eu luminescent material, especially low-temperature, low-cost synthesis of monoclinic LaPO 4 : A method for Eu nanoscale luminescent materials. Background technique: [0002] LaPO 4 As an excellent matrix material, it has the advantages of stable chemical properties, non-toxicity, and pollution-free, and has broad application prospects in ion exchange, fluorescent materials, conductor materials, and catalyst materials. Due to its good chemical stability and thermal stability, it has been widely used in various lighting and display instruments. Especially monoclinic LaPO 4 Good thermal stability, its melting temperature is close to 2000°C, it is a good heat resistance and ceramic material; and La 3+ The ions have similar radii to other rare earth ions, and are easy to achieve doping, thereby improving the luminesc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B25/37C09K11/81B82Y30/00
Inventor 宝金荣朱晓伟王占国
Owner INNER MONGOLIA UNIVERSITY