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Red fluorescent material and preparation method thereof

A technology of red fluorescence and incident light, applied in the field of fluorescent materials, can solve the problems of complex preparation method, low color purity and high cost, and achieve the effects of simple preparation process, high color purity and long service life

Active Publication Date: 2018-11-30
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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  • Red fluorescent material and preparation method thereof
  • Red fluorescent material and preparation method thereof
  • Red fluorescent material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0024] A kind of fluorescent material that emits red light is made by the following method: 0.156g of 2,5-furandicarboxylic acid and 0.453g of europium nitrate are mixed, then added to 40g of DMSO and ethanol mixed solution (the volume of DMSO and ethanol The ratio is 1:1), and after stirring for 10 minutes, put it in an oven at 120°C for 48 hours, and then cool it, so as to obtain a colorless block crystal, which is the red fluorescent material Eu 3 (FDA) 4 (DMSO) 2 (NO 3 )(H 2 O) 2 .

[0025] Specifically, the selected size is 0.26×0.25×0.23mm 3 The single crystal structure analysis of the fluorescent material was carried out, the single crystal diffraction data was collected by Bruker-AXS SMART APEX2CCD diffractometer, and the Mokα ray monochromated by graphite monochromator ( ), 1.7°≤θ≤25.2°, thus the following results are obtained: the fluorescent material belongs to the monoclinic crystal system, the space group is all C2 / c, and the unit cell parameters are approx...

Embodiment 2

[0027] A kind of fluorescent material that emits red light is made by the following method: 0.312g of 2,5-furandicarboxylic acid and 0.906g of europium nitrate are mixed, then added to 80g of DMSO and ethanol mixed solution (the volume of DMSO and ethanol The ratio is 1:1), and after stirring for 10 minutes, put it in an oven at 120°C for 48 hours, and then cool it, so as to obtain a colorless block crystal, which is the red fluorescent material Eu 3 (FDA) 4 (DMSO) 2 (NO 3 )(H 2 O) 2 .

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Abstract

The invention discloses a red fluorescent material and a preparation method thereof, wherein the red fluorescent material is named Eu3(FDA)4(DMSO)2(NO3)(H2O)2, has the molecular formula of C28H24NO27Eu3S2, and has the molecular weight of 1326.48, wherein FDA is 2,5-furan dicarboxylic acid, and DMSO is dimethyl sulfoxide. The preparation method comprises: mixing 2,5-furan dicarboxylic acid and europium nitrate, adding the mixture to a DMSO and ethanol mixing solution, stirring, and carrying out a reaction at a temperature of 120 DEG C to prepare a colorless block crystal. According to the present invention, the fluorescent material can emit red fluorescence with intensity of 10000000 a.u. under the irradiation of incident light with wavelength of 380 nm; with the method, the functional material with characteristics of red fluorescence emitting and excellent performance can be synthesized, and has advantages of long service life and high color purity; and the preparation method has characteristics of simpleness, easily controlled chemical components, good repeatability and high yield.

Description

technical field [0001] The invention relates to the field of fluorescent materials, in particular to a red 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] In order to solve the technical problems in the above-me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06C07F5/00
CPCC07F5/003C09K11/06C09K2211/182
Inventor 王浩王传奕赵晨祺郭文莉李树新伍一波商育伟杨丹
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY