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A kind of red europium-based fluorescent material and its preparation method

A fluorescent material, europium-based technology, applied in the field of fluorescent materials, can solve the problems of complex preparation methods, low color purity, high cost, etc., and achieve the effects of simple preparation process, high color purity and long life

Active Publication Date: 2021-04-02
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing fluorescent materials, especially the red fluorescent materials, have short lifespan and low color purity, and the preparation methods of the existing red luminescent materials are complicated and costly

Method used

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  • A kind of red europium-based fluorescent material and its preparation method
  • A kind of red europium-based fluorescent material and its preparation method
  • A kind of red europium-based fluorescent material and its preparation method

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Effect test

Embodiment 1

[0024] A red europium-based fluorescent material is made by the following method: 0.156g of 2,5-furandicarboxylic acid and 0.453g of europium nitrate are mixed, then added to the mixed solution of 40g of DMAC, ethanol and water (DMAC, ethanol , The volume ratio of water is 1:1:1), and after stirring for 10 minutes, put it in an oven at 100°C for 48 hours, and then cool it, so as to obtain a colorless block crystal, which is a red europium-based fluorescent material Eu 2 (FDA) 3 (DMAC) 2 ·(H 2 O).

[0025] Specifically, the selected size is 0.25×0.25×0.26mm 3 The red europium-based fluorescent material was analyzed for single crystal structure, the single crystal diffraction data was collected by Bruker-AXS SMART APEX2 CCD diffractometer, and the Mokα ray monochromated by graphite monochromator 2.7°≤θ≤25.2°, thus the following results are obtained: the fluorescent material belongs to the triclinic system, the space group is all P-1, and the unit cell parameters are approx...

Embodiment 2

[0027] A red europium-based fluorescent material is made by the following method: 0.312g of 2,5-furandicarboxylic acid and 0.906g of europium nitrate are mixed, then added to the mixed solution of 80g of DMAC, ethanol and water (DMAC, ethanol , The volume ratio of water is 1:1:1), and after stirring for 10 minutes, put it in an oven at 100°C for 48 hours, and then cool it, so as to obtain a colorless block crystal, which is a red europium-based fluorescent material Eu 2 (FDA) 3 (DMAC) 2 ·(H 2 O).

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Abstract

The invention discloses a red europium-based fluorescent material and a preparation method thereof. The material is named as Eu2(FDA)3(DMAC)2*(H2O), in the formula, FDA is 2,5-furan dicarboxylic acid,and DMAC is dimethylacetamide. The preparation method comprises the following steps: mixing 2,5-furan dicarboxylic acid with europium nitrate, putting into a mixed solution of DMAC, ethanol and water, and stirring to carry out a reaction at 100 DEG C, thereby obtaining a colorless blocky crystal. Under radiation of incident light of 365nm, the fluorescent material has red fluorescent light with the intensity of 6000000a.u. The functional material with excellent red fluorescent properties can be synthesized, and the functional material is long in service life and high in color purity, and in addition simple in preparation method, easy in chemical component control, good in repeatability and high in yield.

Description

technical field [0001] The invention relates to the technical field of fluorescent materials, in particular to a red europium-based fluorescent material and a preparation method thereof. Background technique [0002] Modern fluorescent materials have become supporting materials in the fields of information display, lighting sources, optoelectronic devices, etc., and can be used to make luminescent inks, luminescent paints, luminescent plastics, luminescent printing pastes, organic pigments, optical brighteners, photooxidants, coatings, chemical and biochemical There are wider applications in areas such as analytics, solar collectors, anti-counterfeiting markers, drug tracers, and lasers. However, the existing fluorescent materials, especially the red fluorescent materials, have short lifetime and low color purity, and the preparation methods of the existing red fluorescent materials are complex and costly. Contents of the invention [0003] Aiming at the above-mentioned d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F5/00C09K11/06
CPCC07F5/003C09K11/06C09K2211/182
Inventor 王浩王传奕王刚梁艾琳郭文莉李树新伍一波商育伟杨丹
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY