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Oxygen sensitive photoluminescence material, method for preparing the same and uses thereof

A photoluminescent material and oxygen-sensitive technology, which is applied in the direction of luminescent materials, analysis by making materials undergo chemical reactions, chemical instruments and methods, etc., can solve the problems of practical application limitations and high cost, and achieve simple preparation methods and high sensitivity , The effect of cheap raw materials

Inactive Publication Date: 2009-07-29
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, complexes based on noble metals such as platinum, gold, iridium, rhenium, ruthenium, etc. have limited their practical application due to their high cost.

Method used

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  • Oxygen sensitive photoluminescence material, method for preparing the same and uses thereof
  • Oxygen sensitive photoluminescence material, method for preparing the same and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A [Cu(POP)(PTZ)]BF 4 The preparation of copper complex comprises the following steps:

[0020] a. After dissolving 4 grams of copper fluoroborate hexahydrate in acetonitrile, add 2 grams of copper powder, reflux at 85° C. for 6 hours, remove the copper powder by filtration while hot, and let the filtrate stand still for 12 hours to obtain monovalent copper salt ([Cu(CH 3 EN) 4 ] BF 4 );

[0021] b. 538.6 milligrams of two (2-diphenylphosphino) phenyl ether (POP) and 314. milligrams of [Cu(CH 3 EN) 4 ] BF 4 Dissolve in 10 ml of dichloromethane, stir at room temperature for a period of time, add 5-(2-pyridyl)tetrazole, continue stirring for 1 hour, filter, and evaporate the solvent under reduced pressure to obtain a white copper complex [Cu( POP)(PTZ)]BF 4 .

Embodiment 2

[0023] [Cu(POP)(PTZ)]BF 4 Preparation of / MCM-41 oxygen sensing composite luminescent material.

[0024] Get the copper complex [Cu(POP)(PTZ)] BF that 1mg embodiment 1 makes 4 Dissolve in 5 ml of dichloromethane to form a colorless and transparent solution, then add 100 mg of mesoporous molecular sieve MCM-41 which was heated at 550°C in the air for 6 hours to remove its organic template, and filter after stirring; Wash three times and dry at room temperature to obtain the white assembly [Cu(POP)(PTZ)]BF 4 / MCM-41 composite luminescent material, its copper complex [Cu(POP)(PTZ)]BF 4 The mass ratio to mesoporous molecular sieve MCM-41 is 1:100.

Embodiment 3

[0026] [Cu(POP)(PTZ)]BF 4 Preparation of / MCM-41 oxygen sensing composite luminescent material.

[0027] Get the copper complex [Cu(POP)(PTZ)] BF that 2mg embodiment 1 makes 4 Dissolve in 5 ml of dichloromethane to form a colorless and transparent solution, then add 100 mg of mesoporous molecular sieve MCM-41 which was heated at 550°C in the air for 6 hours to remove its organic template, and filter after stirring; Wash three times and dry at room temperature to obtain the white assembly [Cu(POP)(PTZ)]BF 4 / MCM-41 composite luminescent material, its copper complex [Cu(POP)(PTZ)]BF 4 The mass ratio to mesoporous molecular sieve MCM-41 is 2:100.

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Abstract

The invention relates to an oxygen-sensitive photoluminescence material and a preparation method and application thereof. The invention discloses a new copper complex, namely [Cu(POP)(PTZ)]BF4, a composite luminescent material formed by the copper complex and inorganic mesoporous molecular sieve as well as the application of the material in oxygen sensing. The copper complex is dissolved in solvent; then the mesoporous molecular sieve material MCM-41 is dispersed in the copper complex solution, wherein the mass ratio of the copper complex and the mesoporous molecular sieve is 1:100 to 3:100, and the obtained solution is stirred at room temperature and filtered; and finally the solvent is used for washing the solid for three times, and the solid is dried naturally in the air, thus obtaining the composite luminescent material. The material is white, and has luminescent characteristic under an ultraviolet lamp with the maximum emission at the wavelength of about 500nm. The invention, compared with the existing expensive noble metals, has the advantages of low price, simple preparation method, high sensitivity and low toxicity, and is especially suitable for preparing oxygen sensors.

Description

technical field [0001] The invention relates to a new photoluminescence material which is particularly sensitive to oxygen and the application of the material in preparing an oxygen sensor device. Background technique [0002] In recent decades, sensors have emerged in various high-tech products, developing extremely rapidly, and widely used, from space exploration, ocean development, to national defense construction, industrial and agricultural production, from environmental protection, disaster forecasting, to life sciences. Can not do without sensors and sensing technology. With the development of information technology, the importance of sensing technology has been paid more and more attention. [0003] Luminescent chemical sensing means that the photophysical properties of some luminescent compounds have a certain dependence on their chemical environment, that is, the luminous intensity, luminescent peak position or excited state lifetime of a luminescent chemical sens...

Claims

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Application Information

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IPC IPC(8): C09K11/06G01N21/76
Inventor 李斌史林芳刘艳红刘利娜丛妍
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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