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A kind of rare earth-based luminescent material containing multi-acid building blocks and its preparation method and application

A technology for luminescent materials and building units, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of unfavorable rare earth-based MOFs materials, excessive rare earth ion radius, and large volume.

Active Publication Date: 2021-04-23
HUAINAN NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are great difficulties in the preparation of rare earth-based luminescent MOFs materials based on multi-acid building blocks. Conducive to the formation of rare earth-based MOFs materials

Method used

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  • A kind of rare earth-based luminescent material containing multi-acid building blocks and its preparation method and application
  • A kind of rare earth-based luminescent material containing multi-acid building blocks and its preparation method and application
  • A kind of rare earth-based luminescent material containing multi-acid building blocks and its preparation method and application

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Embodiment 1

[0038] combine figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , a rare-earth-based luminescent material containing polyacid building blocks in this embodiment, the specific chemical formula of the rare-earth-based luminescent material is: [Tb 6 (C 16 h 6 o 9 ) 4 (HCOO) 2 (DMF) 4 (H 2 O) 4 ]·2DMF·9H 2 O, the molecular formula is: C 84 h 94 N 6 o 59 Tb 6 , where C 16 h 6 o 9 It is 5-(3’,4’-dicarboxyphenoxy)isophthalic acid, and DMF is N,N-dimethylformamide. The rare earth-based luminescent material is prepared by using a rare earth terbium salt and 5-(3',4'-dicarboxyphenoxy)isophthalic acid as reactants through a DMF solvothermal method.

[0039] A preparation method of a rare earth-based luminescent material containing polyacid building blocks, comprising the following steps:

[0040]1) Under stirring conditions, add 1 drop of high-concentration industrial mineral acid and 5-(3',4'-dicarboxyphenoxy)isophtha...

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Abstract

The invention discloses a rare earth-based luminescent material containing polyacid building units, a preparation method and application thereof, and belongs to the technical field of preparation and application of organic-inorganic chemical hybrid materials. The specific chemical formula of the rare earth-based luminescent material of the present invention is: [Tb 6 (C 16 h 6 o 9 ) 4 (HCOO) 2 (DMF) 4 (H 2 O) 4 ]·2DMF·9H 2 O, the molecular formula is: C 84 h 94 N 6 o 59 Tb 6 , where C 16 h 6 o 9 is 5‑(3’,4’‑dicarboxyphenoxy)isophthalic acid, and DMF is N,N‑dimethylformamide. The present invention uses DMF solvothermal method to prepare the rare earth-based luminescent material containing multi-acid building units. It is a newly synthesized product. It shows bright grass-green fluorescence under the irradiation of ultraviolet lamps, with uniform and pure color, high brightness, and is located in visible light At the same time, the synthesis process of the present invention is simple, the crystallization degree of the material is high, the shape is regular, the purity and yield of the target product are high, and the present invention can be widely used in various energy-saving lamps, fluorescent imaging, fluorescent sensors, new light sources, etc. Fields and promotion of plant growth, ultraviolet disinfection, medical care and other medical and health fields.

Description

technical field [0001] The invention belongs to the technical field of preparation and application of organic-inorganic chemical hybrid materials, and more specifically relates to a rare-earth-based luminescent material containing multi-acid building units and its preparation method and application. Background technique [0002] In recent years, metal-organic frameworks (MOFs) have attracted much attention due to their fascinating topology and broad application prospects. Using MOFs as precursors, some advanced functional materials have been synthesized, such as nanoporous carbon materials, metal oxide nanomaterials, supercapacitors, fluorescent sensors, etc. Among them, rare earth fluorescent materials have been widely used in energy-saving lamps, fluorescent imaging and other aspects. The luminescent properties of rare earth ions are closely related to their 4f electronic structures and their orbital transitions. Due to the difference in energy difference between the low...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00C09K11/06
CPCC08G83/008C09K11/06C09K2211/182
Inventor 文桂林刘道富王丽娜王凤武朱其永魏亦军田冬
Owner HUAINAN NORMAL UNIV
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