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Self-assembly fluorescent sensor material and preparation method and application thereof

A fluorescent sensor and self-assembly technology, which is applied in the direction of luminescent materials, chemical instruments and methods, and material analysis through optical means, can solve the problems of antibiotic organic pollutants and poor antibiotic catabolism, and achieve low price, simple operation, Effects that enrich the prospects for practical application

Pending Publication Date: 2020-12-15
CHANGCHUN UNIV OF TECH
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  • Description
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Problems solved by technology

[0002] With the rapid development of industry, organic pollutants have gradually become the most serious part of environmental pollution in recent years. Nowadays, antibiotics are widely used in human treatment and animal husbandry. However, the abuse of antibiotics will cause serious environmental and drug problems, including acute and chronic poisoning. , cancer and other side effects, and antibiotics are poorly catabolized in the environment, so that antibiotics are considered the most serious organic pollutants, in view of the increasing concerns about environmental pollution and public safety, rapid and sensitive identification and detection of environmental and biological systems Residues of antibiotics in is an urgent need and more practical

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  • Self-assembly fluorescent sensor material and preparation method and application thereof
  • Self-assembly fluorescent sensor material and preparation method and application thereof
  • Self-assembly fluorescent sensor material and preparation method and application thereof

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preparation example Construction

[0023] The present invention firstly provides a method for preparing a self-assembled fluorescent sensor material, the method comprising:

[0024] Step 1: Weigh CdCl 2 2.5H 2 O, cucurbit [6] urea (CB [6]) and 9-anthracene formic acid are dissolved in mixed solution, and described mixed solution is preferably the mixed solution of water and DMF, and the volume ratio of water and DMF is preferably in mixed solution 3:1, then stir at room temperature, the stirring time is preferably 10 minutes, and then put it into a polytetrafluoroethylene high-temperature reactor for reaction, the reaction temperature is preferably 120 ~ 140 ° C, and the reaction time is preferably 36 -48h, gradually cool down to room temperature, and the cooling rate is preferably 10-20°C per hour to obtain a reaction solution; the CdCl 2 2.5H 2 The molar ratio of O, CB[6] and 9-anthracenecarboxylic acid is preferably 0.1-0.2:0.025-0.05:0.125-0.25;

[0025] Step 2: Wash the reaction solution in step 2, pre...

Embodiment 1

[0030] 1. Weigh 0.1mmol of CdCl 2 2.5H 2 O, 0.025mmol of CB [6], 0.125mmol of 9-anthracene formic acid were dissolved in deionized water and DMF in 4mL mixed solution of 3:1, stirred at room temperature for 10 minutes, and charged into 10mL polytetrafluoroethylene placed in a high-temperature reactor; then placed in an oven at a temperature of 140° C. for 36 hours, and cooled to room temperature using a program at a rate of 10° C. per hour to obtain a reaction solution.

[0031] 2. Pour the solution in the kettle into a watch glass, pick out regular transparent crystals under a microscope, wash the crystals with a 3:1 mixed solution of water and DMF, and remove other impurities such as non-crystals. That is, the self-assembled fluorescent sensor material is obtained.

[0032] figure 1 The XRD powder diffraction spectrum measured for the self-assembled body fluorescence sensor according to the XRD spectrum of the single crystal structure simulation and the material of Exampl...

Embodiment 2

[0043] 1. Weigh 0.2mmol of CdCl 2 2.5H 2 O, 0.05 mmol of CB [6], 0.25 mmol of 9-anthracene formic acid were dissolved in deionized water and DMF in 6 mL of a 3:1 mixed solution, stirred at room temperature for 10 minutes, and filled with 10 mL of polytetrafluoroethylene high temperature reactor. Then put it into an oven at a temperature of 120° C. to react for 48 hours, and cool down to room temperature with a program at a rate of 20° C. per hour to obtain a reaction solution.

[0044] 2. Pour the solution in the kettle into a watch glass, pick regular transparent crystals under a microscope, wash the crystals with a 2:1 mixed solution of water and DMF, and remove other impurities such as non-crystals. That is, the self-assembled fluorescent sensor material is obtained.

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Abstract

The invention provides a self-assembled fluorescent sensor material and a preparation method and application thereof, and relates to the field of self-assembled fluorescent sensing nano sensing materials. The sensor material is a novel cucurbit [6] uril supramolecular assembly fluorescence sensor prepared by taking aromatic compound 9-anthraformic acid and Cd2+ as structure directing agents through coordination, is synthesized in one step by adopting a hydrothermal reaction kettle method, and has the advantages of simplicity in operation, common and cheap raw materials, high yield, high fluorescence intensity of a self-assembly fluorescence sensor material and high sensitivity. Experimental results show that the self-assembly fluorescence sensor material has high responsiveness to furan antibiotics in water and strong anti-interference ability; for furan antibiotics in water, the fluorescence intensity is gradually reduced along with the increase of the concentration, and the fluorescence intensity is linearly and controllably changed in a relatively wide concentration range. The self-assembly fluorescence sensor has rich practical application prospects in the fields of water environment pollutant monitoring, pollutant detection in a biological system and the like.

Description

technical field [0001] The invention relates to the field of self-assembled fluorescent sensing nano-sensing materials, in particular to a self-assembled fluorescent sensor material and its preparation method and application. Background technique [0002] With the rapid development of industry, organic pollutants have gradually become the most serious part of environmental pollution in recent years. Nowadays, antibiotics are widely used in human treatment and animal husbandry. However, the abuse of antibiotics will cause serious environmental and drug problems, including acute and chronic poisoning. , cancer and other side effects, and antibiotics are poorly catabolized in the environment, so that antibiotics are considered the most serious organic pollutants, in view of the increasing concerns about environmental pollution and public safety, rapid and sensitive identification and detection of environmental and biological systems Residues of antibiotics in the environment is...

Claims

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Application Information

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IPC IPC(8): C07F3/08C09K11/06G01N21/64
CPCC07F3/003C09K11/06G01N21/6428C09K2211/188C09K2211/1011C09K2211/1074
Inventor 刘梅郭晶石露露方草张华清胡雪梅
Owner CHANGCHUN UNIV OF TECH
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