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Fluorescent and phosphorescent double luminescent material with switching effect and preparation method thereof

A technology of luminescent materials and switching effects, applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems of single stimuli responsiveness and inability to achieve multiple stimuli responses, and achieve excellent protection effects

Active Publication Date: 2019-07-23
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the above defects or improvement needs of the prior art, the present invention provides a fluorescent and phosphorescent dual luminescent material with switching effect and a preparation method thereof, by immobilizing fluorescent and phosphorescent dual luminescent molecules on small molecules containing disulfide bonds In the supramolecular gel formed by the gel factor, a dual-luminescent supramolecular gel material with redox responsiveness is obtained, thereby solving the problem that the existing stimuli-responsive room temperature phosphorescent materials have single stimuli responsiveness and cannot achieve multiple stimuli. response to technical issues

Method used

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  • Fluorescent and phosphorescent double luminescent material with switching effect and preparation method thereof
  • Fluorescent and phosphorescent double luminescent material with switching effect and preparation method thereof
  • Fluorescent and phosphorescent double luminescent material with switching effect and preparation method thereof

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preparation example Construction

[0064] The present invention also provides a preparation method of the double luminescent material, comprising the following steps:

[0065] (1) After mixing the organic solution of luminescent molecules with water, heating to 80°C-95°C to obtain the first solution;

[0066] (2) preparing an organic solution in which the gelling factor is dissolved in an organic solvent to obtain a second solution;

[0067] (3) Mixing the first solution and the second solution, cooling to below the phase transition temperature of the gelling factor, to obtain the redox-responsive fluorescent and room-temperature phosphorescent dual-luminescent supramolecular material.

[0068] Wherein, the concentration of the luminescent molecules in the organic solution of the luminescent molecules in step (1) is 5×10 -5 ~5×10 -3 mol / L, the volume ratio of the organic solvent in the organic solution described in step (1) to water is 1:9~1:1; The concentration of the gel factor in the organic solution descr...

Embodiment 1

[0108] A dual-luminescent material with triple switching effect of fluorescence and room temperature phosphorescence, the preparation method of which is as follows: take a clean test tube and add 50 μL of 1.0×10 -2 mol / L DMSO solution of luminescent molecule 3-bromoquinoline, 900 μL distilled water, shake on a circular shaker for 1 minute, heat the water bath to 80°C, keep warm for 1 minute, add 50 μL 0.02mol / LDBC DMSO solution, shake on a circular shaker Vibrate on the top for 30 seconds, then stand and cool down to room temperature, and the supramolecular material with temperature responsiveness, acid-base responsiveness and redox responsiveness of fluorescence and room temperature phosphorescence double emission described in the present invention can be obtained.

Embodiment 2～ Embodiment 5

[0110] Table 1

[0111]

[0112] Using the parameter conditions listed in Table 1, according to the method of Example 1, the dual-luminescent supramolecular gel material of the present invention can be prepared.

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Abstract

The invention belongs to the field of supramolecular luminescent materials, and more specifically relates to a fluorescent and phosphorescent double luminescent material with switching effect and a preparation method thereof. The double luminescent material is prepared from a supramolecular gel formed by a gel factor and a luminescent molecule fixed in the supramolecular gel. The gel factor is a micromolecular gel factor containing a disulfide bond, and the luminescent molecule is a fluorescent and room temperature phosphorescent double luminescent molecule. The supramolecular material has redox responsiveness. When the double luminescent material is used, and the disulfide bond of the gel factor is reduced to sulfydryl, the supramolecular gel is destroyed, and fluorescence and phosphorescence are turned off at the same time. When the sulfydryl in the gel factor in the double luminescent material is oxidized to disulfide bond, the supramolecular gel is re-formed, and fluorescence and phosphorescence are turned on to realize redox responsiveness of the double luminescent material.

Description

technical field [0001] The invention belongs to the field of supramolecular luminescent materials, and more specifically relates to a fluorescent and phosphorescent dual luminescent material and a preparation method thereof, in particular to a fluorescent and phosphorescent dual luminescent material with switching effect and a preparation method thereof. Background technique [0002] Supramolecular materials with double emission of fluorescence and room temperature phosphorescence have the characteristics of both fluorescent materials and room temperature phosphorescence materials, and have the advantages of high sensitivity, strong anti-interference ability, low detection limit, and the ability to achieve dual-channel luminescence. It is widely used in biological imaging, chemical sensors, optoelectronic devices, ion detection and other fields. Environmental stimulus-responsive supramolecular luminescent materials are a class of smart materials that can sense changes in ext...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/02C09K11/06
CPCC09K11/025C09K11/06C09K2211/1029
Inventor 王宏袁剑辉周琪张彬彬杨亚江
Owner HUAZHONG UNIV OF SCI & TECH
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