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Organic crystalline state material on the basis of rare earth metal europium, preparation, and application thereof in fluorescent recognition of antibiotics

A technology of rare earth metals and metal organic frameworks, applied in the fields of luminescent materials, fluorescence/phosphorescence, material excitation analysis, etc., can solve rare problems, achieve low temperature requirements, high yield, and easy control

Active Publication Date: 2017-07-04
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are not many reports on Ln-MOFs fluorescent probes capable of detecting formaldehyde and benzaldehyde, and fluorescent Ln-MOFs that can simultaneously detect these two organic small molecules are even rarer.

Method used

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  • Organic crystalline state material on the basis of rare earth metal europium, preparation, and application thereof in fluorescent recognition of antibiotics
  • Organic crystalline state material on the basis of rare earth metal europium, preparation, and application thereof in fluorescent recognition of antibiotics
  • Organic crystalline state material on the basis of rare earth metal europium, preparation, and application thereof in fluorescent recognition of antibiotics

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Experimental program
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Effect test

Embodiment 1

[0040] (1) Take 0.5mmol of triazine polycarboxylic acid, 1mmol of europium nitrate, 5ml of DMF, 0.5ml of H 2 O, 0.025ml with a concentration of 0.1mol / L NaOH, 0.3ml of 3.5M nitric acid, add it to a stainless steel reactor lined with polytetrafluoroethylene, react at a constant temperature at 160°C for 72h, and cool down at a constant rate of 2-3°C / h to At room temperature, a colorless transparent block crystal is obtained, namely 4,4',4"-s-triazine-1,3,5-tris-m-aminobenzoic acid rare earth Eu metal organic framework crystalline material.

[0041] (2) Add 5mg of 4,4',4"-s-triazine-1,3,5-tris-m-aminobenzoic acid rare earth Eu metal organic framework crystal material to 10ml containing the selected antibiotic concentration In a 0.1mmol / L aqueous solution system (the antibiotics are FCC, FDZ, PCL, FZD, NFT, CAP, NZF, SMZ, RDZ, MDZ, DTZ, ODZ), ultrasonic vibration at room temperature for 0.5h, take out and load In a 4ml four-sided transparent cuvette, the fluorescence intensity was te...

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Abstract

An organic crystalline state material on the basis of rare earth metal europium, preparation, and fluorescent recognition of antibiotics. The invention belongs to the technical field of crystalline state materials. The chemical molecular formula of the organic crystalline state material is {H3O<+>[EuNa<0.5>(TATAB)(DMF)].(solvent)<x>}n, wherein x and n refers to positive infinity, and H3TATAB refers to 4,4',4"-s-triazine-1,3,5-tri-m-aminobenzoic acid. One Eu<3+> ion and 0.5 Na<+> ion are connected to form a trimetal-cluster basic unit (Eu-Na-Eu) through six oxygen atoms on three TATAB ligands, wherein the binuclear unit is connected to form a three-dimensional network frame through the ligands. The metal-organic frame material has simple synthesis process and high crystalline purity, has a novel structure, is high in stability in a water solution, and can recognize an antibiotic, ornidazole, from a plurality of antibiotic water solutions.

Description

Technical field [0001] The present invention relates to 4,4',4"-s-triazine-1,3,5-tris-m-aminobenzoic acid rare earth Eu metal organic framework material, specifically using triazine polycarboxylic acid as ligand, rare earth metal europium and The main group metal sodium is the metal organic framework material formed by the metal center, and the compound can quickly and sensitively identify the antibiotic ornidazole (ODZ) through the fluorescence intensity in the aqueous solution system containing different antibiotics. Background technique [0002] In recent years, various fluorescent sensing materials have attracted great interest. Among them, lanthanide-metal organic frameworks (Ln-MOFs) have attracted much attention. This is mainly due to the combination of the fluorescence characteristics of lanthanide ions and the pore properties of MOFs. Perfectly combined together. Lanthanide ions, as the metal center of Ln-MOFs, provide them with good fluorescence properties, mainly beca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00C09K11/06G01N21/64
Inventor 李东升文国选赵君吴亚盘董文文张其春刘云凌
Owner CHINA THREE GORGES UNIV
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