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Nd compound luminescent material containing phenanthroline and modified carboxylate ligand and preparation method of Nd compound luminescent material

A luminescent material, phenanthroline technology, applied in the field of Nd compound luminescent material and its preparation, to achieve the effect of increased fluorescence efficiency, low raw material cost, and prolonged luminescent life

Active Publication Date: 2019-04-26
LUOYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a kind of Nd compound luminescent material containing phenanthroline and modified carboxylic acid ligands and its preparation method, which can make up for the defects of rare earth compounds based on a single ligand and sensitize the rare earth ions. Charge transition to achieve the purpose of obtaining NIR luminescent fluorescent materials with high fluorescence intensity, high thermal stability and long luminescence life

Method used

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  • Nd compound luminescent material containing phenanthroline and modified carboxylate ligand and preparation method of Nd compound luminescent material
  • Nd compound luminescent material containing phenanthroline and modified carboxylate ligand and preparation method of Nd compound luminescent material
  • Nd compound luminescent material containing phenanthroline and modified carboxylate ligand and preparation method of Nd compound luminescent material

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Experimental program
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Effect test

Embodiment 1

[0021] a. Add 2,6-lutidine-3,5-dicarboxylic acid and 1,10-phenanthroline into distilled water, stir and dissolve, add dilute glacial acetic acid solution to adjust the pH to 4.0 to obtain a solution of organic ligands, spare;

[0022] b. Add the organic ligand solution to the mixture of water and organic solvent, then add Nd(NO 3 ) 3 ·6H 2 O, stir under normal temperature and pressure to obtain the precursor solution, for subsequent use;

[0023] The volume ratio of water and organic solvent in the mixture of water and organic solvent is 1:1, and the organic solvent is DMSO.

[0024] per 0.1mol organic ligand H 2 Add 0.02mol of Nd(NO 3 ) 3 ·6H 2 O.

[0025] c. Move the precursor solution to a polytetrafluoroethylene-lined hydrothermal reaction kettle, seal it in a stainless steel reaction kettle, put it in an oven, adjust the temperature of the oven to 160°C, and react for 80 hours. After the reaction is completed, control the reaction kettle Cool to room temperature ...

Embodiment 2

[0032] a. Add 2,6-lutidine-3,5-dicarboxylic acid and 1,10-phenanthroline into distilled water, stir to dissolve, add dilute glacial acetic acid solution to adjust the pH to 3.0, and obtain an organic ligand solution for later use ;

[0033] b. Add the organic ligand solution to the mixture of water and organic solvent, and then add Nd 2 o 3 , stir under normal temperature and pressure to obtain the precursor solution, and set aside;

[0034] The volume ratio of water and organic solvent in the mixture of water and organic solvent is 0.1:1, and the organic solvent is ethanol.

[0035] per 0.1mol organic ligand H 2 Add 0.01mol of Nd to dpda 2 o 3 .

[0036] c. Move the precursor solution to a polytetrafluoroethylene-lined hydrothermal reaction kettle, seal it in a stainless steel reaction kettle, put it in an oven, adjust the temperature of the oven to 135°C, and react for 100 hours. After the reaction is completed, control the reaction kettle Cool to room temperature at ...

Embodiment 3

[0038] a. Add 2,6-lutidine-3,5-dicarboxylic acid and 1,10-phenanthroline into distilled water, stir and dissolve, add dilute glacial acetic acid solution to adjust the pH to 5.0, and obtain an organic ligand solution for later use ;

[0039] b. Add the organic ligand solution to the mixture of water and organic solvent, then add Nd(CH 3 COO) 3 ·5H 2 O, stir under normal temperature and pressure to obtain the precursor solution, for subsequent use;

[0040] The volume ratio of water and organic solvent in the mixture of water and organic solvent is 2:1, and the organic solvent is DMF.

[0041] per 0.1mol organic ligand H 2 Add 0.015mol of Nd(CH 3 COO) 3 ·5H 2 O.

[0042] c. Move the precursor solution to a polytetrafluoroethylene-lined hydrothermal reaction kettle, seal it in a stainless steel reaction kettle, put it in an oven, adjust the temperature of the oven to 180°C, and react for 60 hours. After the reaction is completed, control the reaction kettle Cool to room...

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Abstract

The invention relates to a Nd compound luminescent material containing phenanthroline and modified carboxylate ligand and a preparation method of the Nd compound luminescent material. A chemical formula of the luminescent material is {[Nd4(dpda)6(phen)4].6H2O}n, wherein the ligand H2dpda is 2, 6-dimethylpyridine-3, 5-dicarboxylic acid; phen is 1, 10-phenanthroline; the complex crystal belongs to atriclinic system; a space group is p-1; unit cell parameters are as follows: a equals to 8.7571(3) Ampere, b equals to 9.9713(3) Ampere, c equals to 13.0666(4) Ampere, V equals to 1019.74(6) Ampere^3, Alpha equals to 108.110(3) degree, Beta equals to 101.609(3) degree and Gamma equals to 101.434(3) degree; and the material can be excited by near-ultraviolet light and emit near-infrared fluorescence. The preparation method provided by the invention overcomes the defects of single ligand-based compounds, sensitizes charge transition of rare-earth ions, and achieves a purpose of obtaining an NIRluminescent fluorescent material with high fluorescence intensity, high thermal stability and long luminescence lifetime.

Description

technical field [0001] The invention relates to the technical field of rare earth luminescent materials, in particular to Nd compound luminescent materials containing phenanthroline and modified carboxylic acid ligands and a preparation method thereof. Background technique [0002] Since the invention of three primary color fluorescent lamps by Liverpool Company in the Netherlands in 1979, rare earth luminescent materials and their preparation methods have always been the focus of attention. Rare earth luminescent materials, especially phosphors for lamps, light detection, and light storage materials, have been widely used in the fields of safety protection, light transmission and display due to their advantages such as high luminous efficiency, long life, and good color rendering. In recent years, rare earth compounds, due to their unique physicochemical properties and various applications as functional materials, such as chemical and biological sensors, electroluminescence...

Claims

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Application Information

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IPC IPC(8): C07F5/00C09K11/06
CPCC09K11/06C07F5/00C09K2211/182
Inventor 冯勋张恒李荣芳杜正好张道铭梁青如马芬
Owner LUOYANG NORMAL UNIV
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