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Grinding preparation method of copper (I)-bromine hybrid fluorescent materials

A fluorescent material and mixed grinding technology, applied in the direction of luminescent materials, chemical instruments and methods, can solve the problems of cumbersome reaction steps, difficulty in finding solvents, production of divalent copper by-products, etc., and achieve simple preparation methods and stable fluorescence Good effect with great application potential

Active Publication Date: 2020-05-29
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the solvent method and the precursor reaction method mainly use monovalent copper as a raw material, but monovalent copper has poor solubility in various organic solvents and is unstable in water, so it is difficult to find a suitable solvent.
In addition, the precursor synthesis method needs to use monovalent halogen copper salt as a raw material to synthesize the precursor, and then further react with the organic ligand, and the reaction steps are relatively cumbersome.
The redox method requires divalent copper salt as a raw material, which is reduced by a reducing agent to obtain monovalent copper, and then reacted with an organic ligand. The reduction step increases the preparation cost and also makes the reaction steps more cumbersome.
Vapor deposition method requires high temperature and high pressure, high energy consumption and easy to produce by-products related to divalent copper

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0020] Weigh 0.308 g of tetramethylammonium bromide and 0.572 g of cuprous bromide, place them in a mortar, expose to air at room temperature 25° C., and grind for 30 min. The mixture after the grinding reaction was dissolved in 20ml of boiling isopropanol, filtered while hot, and the filtrate was allowed to stand and cool to precipitate a solid, and the resulting solid was vacuum-dried to obtain the product [N(CH 3 ) 4 ] 3 [Cu 2 Br 5 ]. The obtained [N(CH 3 ) 4 ] 3 [Cu 2 Br 5 ] clusters emit yellow-green fluorescence under 254nm ultraviolet excitation, and the maximum emission wavelength is around 510nm. The fluorescence spectrum data are as follows: figure 1 shown. Its X-ray powder diffraction pattern of the prepared copper (I) halogen cluster compound is as follows figure 2 As shown, the positions of the diffraction peaks are consistent with the theoretical simulation spectrum.

Embodiment 2

[0022] Weigh 0.82 g of tetraethylammonium bromide and 0.28 g of cuprous bromide, place them in a mortar, expose to air at room temperature 25°C, and grind for 30 min. The mixture after the grinding reaction was dissolved in 20ml of boiling ethanol, filtered while it was hot, the filtrate was left to stand and cooled to precipitate a solid, and the gained solid was dried in vacuo to obtain the product [N(C 2 h 5 ) 4 ] 2 [Cu 2 Br 4 ]. The obtained [N(C 2 h 5 ) 4 ] 2 [Cu 2 Br 4 ] clusters emit blue fluorescence under 254nm ultraviolet excitation, and the maximum emission wavelength is around 460nm. The fluorescence spectrum data are as follows: figure 1 shown. Its X-ray powder diffraction pattern of the prepared copper (I) halogen cluster compound is as follows figure 2 As shown, the positions of the diffraction peaks are consistent with the theoretical simulation spectrum.

Embodiment 3

[0024] Weigh 0.80 g of tetrapropylammonium bromide and 0.28 g of cuprous bromide, place them in a mortar, expose them to air at room temperature 25° C., and grind for 30 min. The mixture after the grinding reaction was dissolved in 20ml of boiling ethanol, filtered while it was hot, the filtrate was left to stand and cooled to precipitate a solid, and the gained solid was dried in vacuo to obtain the product [N(C 3 h 7 ) 4 ] 2 [Cu 4 Br 6 ]. The obtained [N(C 3 h 7 ) 4 ] 2 [Cu 4 Br 6 ] clusters emit orange-red fluorescence under 254nm ultraviolet excitation, and the maximum emission wavelength is around 660nm. The fluorescence spectrum data are as follows: figure 1 shown. Its X-ray powder diffraction pattern of the prepared copper (I) halogen cluster compound is as follows figure 2 As shown, the positions of the diffraction peaks are consistent with the theoretical simulation spectrum.

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Abstract

The invention provides a grinding preparation method of copper (I)-bromine hybrid fluorescent materials, wherein the grinding preparation method comprises the steps: mixing and grinding cuprous bromide and tetraalkylammonium bromide salts, and recrystallizing to obtain the copper (I)-bromine hybrid materials with different fluorescence colors. The copper (I)-bromine hybrid fluorescent materials with different fluorescent colors can be prepared by adopting tetraalkyl ammonium bromide salts with different alkyl chain lengths. The preparation method is simple and convenient, mild in condition, low in cost, short in consumed time, high in yield and suitable for batch production, and the prepared copper (I)-bromine hybrid materials are good in fluorescence stability and has great application potential in the fields of chemical sensing analysis, optics, electrical devices and the like.

Description

technical field [0001] The invention belongs to the technical field of preparation of inorganic-organic hybrid materials, and in particular relates to a grinding preparation method of copper (I)-bromine hybrid fluorescent materials. Background technique [0002] Inorganic-organic hybrid materials are a class of functional materials based on the mixing of inorganic and organic components at the nanoscale. Such materials not only have the superior properties of two separate components, but also may develop superior properties that two separate components do not possess, making them widely used in the fields of optics, electricity and magnetism. Among them, copper(I)-halogen hybrids [CunXm(L)z; X=Cl, Br, I; L=organic ligands containing N, P, S] due to their superior optical properties, structural diversity and copper in Natural resources are abundant and have attracted widespread attention. At present, more than 2,000 kinds of copper(I)-halogen hybrids have been successfully ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/58C09K11/06
CPCC09K11/06C09K11/58C09K2211/10
Inventor 冯亮陈淑琴王昱
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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