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A kind of porous rare earth metal-organic fluorescent material and its preparation method and application

A technology of rare earth metals and fluorescent materials, applied in the fields of luminescent materials, organic chemistry, fluorescence/phosphorescence, etc., to achieve the effects of high luminous efficiency, low cost and high yield

Active Publication Date: 2015-12-02
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently reported MOFs fluorescent materials containing rare earth metal ions can only realize the recognition of some specific small organic molecules, and there is no literature report that a MOF material containing rare earth metal ions can simultaneously recognize a variety of different small organic molecules

Method used

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  • A kind of porous rare earth metal-organic fluorescent material and its preparation method and application
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  • A kind of porous rare earth metal-organic fluorescent material and its preparation method and application

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Effect test

Embodiment 1

[0036] A porous rare earth metal-organic fluorescent material and its preparation method and application, the chemical formula is [Eu 0.35 Tb 0.65 TCM (H 2 O) 2 ]·3DMF·H 2 O (abbreviated as Eu 0.35 Tb 0.65 -TCM), TCM is 2,4,6-trimethylbenzene-1,3,5-tri-p-methylene oxymellitic acid, and DMF is N,N-dimethylformamide.

[0037] Eu 0.35 Tb 0.65 -The preparation method of TCM porous rare earth metal-organic fluorescent material is as follows:

[0038] 0.00245mmol of Eu(NO 3 ) 3 ·6H 2 O, 0.00455mmol of Tb(NO 3 ) 3 ·6H 2 O and 0.0053 mmol of H 3 TCM was dissolved in a mixed solvent of DMF (2mL) and methanol (3mL), then sealed in a glass container and heated at 50°C for two days to obtain colorless crystals, which were the target product [Eu 0.35 Tb 0.65 -TCM(H 2 O) 2 ]·3DMF·H 2 O (abbreviated as Eu 0.35 Tb 0.65 -TCM).

[0039] Eu 0.35 Tb 0.65 -Use of TCM porous rare earth metal-organic fluorescent material, the application is specifically:

[0040] (1) Detecti...

Embodiment 2

[0044] A kind of porous rare earth metal-organic fluorescent material and its preparation method and application, chemical formula is [La 0.35 Tb 0.65 TCM (H 2 O) 2 ]·3DMF·H 2 O (abbreviated as Eu 0.35 Tb 0.65 -TCM), TCM is 2,4,6-trimethylbenzene-1,3,5-tri-p-methylene oxymellitic acid, and DMF is N,N-dimethylformamide.

[0045] La 0.35 Tb 0.65 -The preparation method of TCM porous rare earth metal-organic fluorescent material is as follows:

[0046] 0.00245mmol of La(NO 3 ) 3 ·6H 2 O, 0.00455mmol of Tb(NO 3 ) 3 ·6H 2 O and 0.0053 mmol of H 3 TCM was dissolved in a mixed solvent of DMF (1.25mL) and methanol (3.75mL), then sealed in a glass container and heated at 100°C for two days to obtain colorless crystals, which were the target product [La 0.35 Tb 0.65 -TCM(H 2 O) 2 ]·3DMF·H 2 O (abbreviated as La 0.35 Tb 0.65 -TCM).

[0047] La 0.35 Tb 0.65 -Use of TCM porous rare earth metal-organic fluorescent material, the application is specifically:

[0048] ...

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Abstract

The invention discloses a porous rare-earth metal-organic fluorescent material and a preparation method and an application thereof. The chemical formula of the fluorescent material is [AxB1-xTCM(H2O)2].3DMF.H2O(AxB1-x-TCM for short), wherein A and B are any two selected from La, Eu and Tb; x is less than 1 and greater than 0; TCM is 2,4,6-trimethylbenzene-1,3,5-tri-p-methyleneoxybenzenetricarboxylic acid; and DMF is N,N-dimethylformamide. According to the preparation method, rare-earth metal nitrate is metal salt, H3TCM is used as a ligand, DMF and methanol are used as a mixed solvent, and a reaction is carried out under the heating condition to prepare the porous rare-earth metal-organic fluorescent material. The porous rare-earth metal-organic fluorescent material has a good fluorescent recognition effect for various different molecules of solvent, and is a multifunctional multipurpose porous fluorescent material.

Description

technical field [0001] The invention relates to an organic fluorescent material, in particular to a porous rare earth metal-organic fluorescent material and a preparation method thereof, and the application of the porous rare earth metal-organic fluorescent material in regulating luminous color and detecting various volatile solvents. Background technique [0002] Small molecule detection plays a vital role in the fields of biotechnology, separation, and environmental monitoring. However, since small organic solvent molecules have similar structural configurations and similar physical and chemical properties, small molecule detection is a challenging field. Due to the unique 4f electrons of rare earth metal ions, especially Eu 3+ , Tb 3+ Ions have very good fluorescent properties. Using rare earth metal ions as nodes to construct metal-organic frameworks (Metal-Organic Frameworks; MOFs), can use organic ligands as photosensitizers, absorb light energy through organic liga...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F5/00C09K11/06G01N21/64
Inventor 吴传德战超欧沙邹超赵敏
Owner ZHEJIANG UNIV
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