Solvent thermal synthesis method of Lu2O3 nanorod luminescent powder

A technology of luminescent powder and synthesis method, which is applied in the direction of luminescent materials, chemical instruments and methods, etc., and can solve the problems such as no lutetium oxide nanopowder

Inactive Publication Date: 2010-07-28
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no report on the preparation of lutetium oxide nanopowders by solvothermal method

Method used

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  • Solvent thermal synthesis method of Lu2O3 nanorod luminescent powder
  • Solvent thermal synthesis method of Lu2O3 nanorod luminescent powder
  • Solvent thermal synthesis method of Lu2O3 nanorod luminescent powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: rod-shaped Lu 2 o 3 : Preparation of RE Nano Luminescent Powder

[0034] (1), the commercial Lu 2 o 3 Powder and RE 2 o 3 The powder was dissolved with concentrated nitric acid, and then diluted with deionized water to Lu(NO 3 ) 3 The concentration is 0.526mol / L, Eu(NO 3 ) 3 The concentration is 0.916mol / L, Tb(NO 3 ) 3 The concentration is 0.952mol / L, Nd(NO 3 ) 3 Concentration is 0.535mol / L, Pr(NO 3 ) 3 The concentration is 1.477mol / L, Tm(NO 3 ) 3 The concentration is 0.970mol / L. Measure a certain volume of RE(NO 3 ) 3 The solution was added to 30ml Lu(NO 3 ) 3 In the solution, the molar ratios in the mixed solution were Eu / Lu=5.8%, Tb / Lu=1.0%, Nd / Lu=1.0%, Pr / Lu=1.0%, and Tm / Lu=0.5%.

[0035] (2), under the vigorous stirring condition of magnetic stirrer, the NH of 50ml 3 NH with a content of 25-28wt% 3 ·H 2 The O solution was slowly added dropwise into the prepared mixed solution, and a white precipitate slowly formed, and the stir...

Embodiment 2

[0041] Embodiment 2: spherical and nearly spherical Lu 2 o 3 : Preparation of RE Nano Luminescent Powder

[0042] (1), the commercial Lu 2 o 3 Powder and RE 2 o 3 The powder was dissolved with concentrated nitric acid, and then diluted with deionized water to Lu(NO 3 ) 3 The concentration is 0.526mol / L, Eu(NO 3 ) 3 The concentration is 0.916mol / L, Tb(NO 3 ) 3 The concentration is 0.952mol / L, Nd(NO 3 ) 3 Concentration is 0.535mol / L, Pr(NO 3 ) 3 The concentration is 1.477mol / L, Tm(NO 3 ) 3 The concentration is 0.970mol / L. Measure a certain volume of RE(NO 3 ) 3 The solution was added to 30ml Lu(NO 3 ) 3 In the solution, the molar ratios in the mixed solution were Eu / Lu=5.8%, Tb / Lu=1.0%, Nd / Lu=1.0%, Pr / Lu=1.0%, and Tm / Lu=0.5%.

[0043] (2), under the vigorous stirring condition of magnetic stirrer, the NH of 50ml 3 NH with a content of 25-28wt% 3 ·H 2 The O solution was slowly added dropwise into the prepared mixed solution, and a white precipitate slowly ...

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Abstract

The invention relates to a solvothermal synthesis method of Lu2O3 nanorod luminescent powder and relates to the rare earth nanometer material preparation and the microstructural regulation and control thereof. The method comprises the following steps: adopting commercial rare earth oxides (lutecium oxide, europium oxide, neodymium oxide, praseodymium oxide and thulium oxide) as raw materials, separately dissolving the raw materials in concentrated nitric acid, diluting, preparing Lu(NO3)3 solution doped with a defined concentration of RE(NO3)3 (RE is one of Eu, Tb, Nd, Pr and Tm) solution, then dropping ammonia water to react and generate precipitate, mixing the precipitate and solvents with different components and properties, placing the mixtures in a sealed reaction tank to perform solvothermal reaction at 100-300 DEG C and synthesize lutetium-based precursor products with different features; and further calcining precursor power at 400-1000 DEG C for 1-3 hours to prepare the Lu2O3 nanorod luminescent powder. The method of the invention has simple and practical process, the feature of the product can be conveniently controlled by adjusting the type of solvent during the solvothermal process, and Lu2O3 nanorod powder can be obtained.

Description

technical field [0001] The present invention relates to a Lu with rod-like morphology 2 o 3 The invention discloses a solvothermal synthesis method of nanorod luminescent powder, which belongs to the technical field of preparation of rare earth luminescent materials. Background technique [0002] Due to lutetium oxide (Lu 2 o 3 ) The material has a very high density (9.42g / cm 3 ), strong stopping power for various types of rays (X-rays, γ-rays), wide band gap (6.5eV) between valence band and conduction band, and very stable in air, etc., which make lutetium oxide-based luminescent materials extremely Large application value, such as doped europium (Eu 3+ ) lutetium oxide material is a new type of scintillation material, which has broad application prospects in medical imaging, X-ray detection and other fields. [0003] Scientific and technological workers have done more research on lutetium oxide luminescent powder. The traditional method of preparing lutetium-based o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/78
Inventor 施鹰邱华军谢建军谢杰许志斌
Owner SHANGHAI UNIV
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