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Preparation method and application of rare earth europium hybrid luminescent material with aluminum ion sensing performance

A luminescent material, aluminum ion technology, applied in luminescent materials, chemical instruments and methods, material analysis by optical means, etc., can solve the problems of poor mechanical properties, poor photostability, etc. The effect of excellent aluminum ion sensing performance

Active Publication Date: 2019-10-15
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, most of the current rare earth fluorescent chemical sensors are pure rare earth complex luminescent materials, which have the defects of poor photostability and poor mechanical properties.

Method used

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  • Preparation method and application of rare earth europium hybrid luminescent material with aluminum ion sensing performance
  • Preparation method and application of rare earth europium hybrid luminescent material with aluminum ion sensing performance
  • Preparation method and application of rare earth europium hybrid luminescent material with aluminum ion sensing performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Synthesis of p-bromophenylterpyridine

[0039] Weigh 4.0 g of p-bromobenzaldehyde with an analytical balance and add it to a four-necked flask, and add 60 mL of absolute ethanol to shake to dissolve it; measure 80 mL of absolute ethanol with a graduated cylinder and add it to the beaker, and then add 4.84 g of 2-acetyl Pyridine, 3.4 g of potassium hydroxide was added to the beaker, a magnet was added, and electromagnetically stirred to dissolve it, and after dissolving, 80 mL of ammonia water was added; later, the solution obtained in the second step was added to the solution in the four-necked bottle of the first step, and installed Good electromagnetic stirring device, start stirring, the speed is 80 r / min, heating and reflux reaction, there will be precipitation, react for 24 hours; after 24 hours of reflux, turn off the heating, continue to stir for one hour until the product becomes cool, and use a Buchner funnel to pump Filtered and washed twice with 30 mL eth...

Embodiment 2

[0050] (1) Synthesis of p-bromophenylterpyridine

[0051] Use an analytical balance to weigh 3.4 g of p-bromobenzaldehyde into a four-necked flask, and add 56 mL of absolute ethanol to shake to dissolve; measure 76 mL of absolute ethanol in a graduated cylinder and add it to a beaker, and then add 4.84 g of 2-acetyl Pyridine, 3.15g of potassium hydroxide was added to the beaker, a magnet was added, and electromagnetically stirred to dissolve it, and after dissolving, 76mL of ammonia water was added; later, the solution obtained in the second step was added to the four-necked bottle solution of the first step, and installed Electromagnetic stirring device, start stirring, the rotation speed is 80 r / min, heat and reflux reaction, there will be precipitation, react for 24 hours; after 24 hours of reflux, turn off the heating, continue to stir for one hour until the product becomes cool, and filter with Buchner funnel , and washed twice with 20 mL of ethanol to obtain a white soli...

Embodiment 3

[0057] (1) Synthesis of p-bromophenylterpyridine

[0058] Weigh 3.92g of p-bromobenzaldehyde with an analytical balance and add it to a four-necked flask, and add 64 mL of absolute ethanol to shake to dissolve it; Pyridine, 3.58g of potassium hydroxide were added to the beaker, and magnets were added, and electromagnetically stirred to dissolve it, and 85mL of ammonia water was added after dissolution; later, the solution obtained in the second step was added to the four-necked bottle solution of the first step, and the electromagnetic Stirring device, start stirring, the rotation speed is 120 r / min, heating and reflux reaction, there will be precipitation, react for 24 hours; after 24 hours of reflux, turn off the heating, continue to stir for one hour until the product becomes cool, and filter it with a Buchner funnel. Wash twice with 10 mL of ethanol to obtain a white solid powder, which is dried in the air.

[0059] (2) Synthesis of precursor NTA-Si

[0060] Dissolve 3 m...

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Abstract

The invention provides a preparation method of a rare earth europium hybrid luminescent material with aluminum ion sensing performance, belonging to the technical field of rare earth photochemical sensing materials. According to the invention, a terpyridine derivative is covalently grafted onto a silicon oxygen network through an organic synthesis method to obtain a terpyridine derivative functionalized hybrid material; and the rare earth europium hybrid luminescent material functionalized by the terpyridine derivative is obtained through coordination reaction and hydrolytic copolycondensationprocess. The preparation method enables the obtained luminescent material to realize grafting between organic and inorganic substrates at the molecular level, and has strong operability, good reproducibility, no need of catalysts and the like, low cost, good mechanical property, large characteristic emission intensity and sensitive selectivity to aluminum ions.

Description

technical field [0001] The invention relates to the technical field of rare earth photochemical sensing materials, in particular to a preparation method and application of a rare earth europium hybrid luminescent material with aluminum ion sensing performance. Background technique [0002] Aluminum ions are relatively common in daily life. There are also aluminum ions in the food people eat every day, but the content is very small, but some foods will add food leavening agents, and some water purification processes will be used Alum flocculant, if the human body consumes these foods and water for a long time, aluminum ions will accumulate in the body, which can cause the degeneration of brain nerves, memory loss and other symptoms. Therefore, it is of great significance to design and synthesize materials with selective recognition function for aluminum ions. [0003] Due to the advantages of high sensitivity, real-time identification and convenience, photochemical sensing m...

Claims

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Application Information

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IPC IPC(8): C08G83/00C09K11/06G01N21/64
CPCC08G83/00C08G83/008C09K11/06C09K2211/182G01N21/643G01N2021/6432
Inventor 李恒董鹏飞张政李亚娟任聚杰何萍王亚齐
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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