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A kind of fiber immobilization method of fluorescent carbon nanomaterials

A carbon nanomaterial and fluorescence technology, applied in the directions of luminescent materials, fiber processing, chemical instruments and methods, etc., can solve the problems of separation and recycling, and achieve the effect of maintaining the shape, easy to handle, and convenient to operate.

Active Publication Date: 2020-04-14
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is: in order to overcome the separation and recycling problems of fluorescent carbon nanomaterials in the application process of fluorescent probes, photocatalysis and other fields, and to solve the technical problem of fluorescence quenching after fluorescent carbon nanomaterials are immobilized, the present invention Provide a new fiber immobilization method for fluorescent carbon nanomaterials

Method used

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  • A kind of fiber immobilization method of fluorescent carbon nanomaterials
  • A kind of fiber immobilization method of fluorescent carbon nanomaterials
  • A kind of fiber immobilization method of fluorescent carbon nanomaterials

Examples

Experimental program
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Effect test

Embodiment 1

[0040] The fiber immobilization method of fluorescent carbon nanomaterial of the present invention, the detailed steps of this immobilization method are as follows:

[0041] a, first 5g weakly basic ion-exchange fiber (this weakly basic ion-exchange fiber is the adsorption fiber prepared according to Example 1 in the invention patent description of CN95116025.7 according to the patent number) is added in 100ml water and swells, and the swelling time is 1h, after swelling, the solvent was filtered out to obtain the swollen weakly basic ion exchange fiber;

[0042] b. Ultrasonically disperse 0.05g of carbon quantum dots in 50mL of water, then add the swollen weakly basic ion-exchange fiber in step a and stir evenly;

[0043] c. Heat the oil bath of the mixed materials stirred uniformly in step b to 40° C., react at this temperature for 48 hours, and cool to room temperature after the reaction;

[0044] d. Wash the cooled product in step c with water and ethanol in sequence, and...

Embodiment 2

[0046] The fiber immobilization method of fluorescent carbon nanomaterial of the present invention, the detailed steps of this immobilization method are as follows:

[0047] a, first 0.1g weakly acidic ion exchange fiber (this weakly acidic ion exchange fiber is the hydrogen type ion exchange fiber prepared according to Example 3 in the invention patent description of CN200410060275.0) is added in 20ml dichloroethane Carry out swelling, the swelling time is 48h, after swelling, the solvent is filtered out to obtain the swollen weakly acidic ion exchange fiber;

[0048]b. ultrasonically disperse 0.1g of graphene oxide quantum dots in a mixed solution of 10mL of water and ethanol, then add the swollen weakly acidic ion-exchange fibers in step a and stir evenly;

[0049] c. Transfer the uniformly stirred mixed material in step b into a 50ml hydrothermal reactor, heat up to 180°C, react at this temperature for 1 hour, and cool to room temperature after the reaction;

[0050] d. T...

Embodiment 3

[0052] The fiber immobilization method of fluorescent carbon nanomaterial of the present invention, the detailed steps of this immobilization method are as follows:

[0053] a, first add 1g of weakly acidic ion exchange fiber (this weakly acidic ion exchange fiber is the hydrogen ion exchange fiber prepared according to Example 1 in the patent specification for invention of CN200410060275.0) into 50ml of nitrobenzene for swelling , the swelling time is 24h, and the solvent is filtered out after swelling to obtain the swollen weakly acidic ion exchange fiber;

[0054] b. Ultrasonic dispersion of 0.2g graphene quantum dots in a mixed solution of 30mL N,N-dimethylformamide and dimethyl sulfoxide, then adding the swollen weakly acidic ion-exchange fibers in step a and stirring evenly;

[0055] c. Put the uniformly stirred mixed material in step b into a microwave reactor, heat up to 140° C., react at this temperature for 2 hours, and cool to room temperature after the reaction;

...

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Abstract

The invention discloses a fiber immobilization method of a fluorescence carbon nanomaterial. The method comprises the following steps: adding functional fibers into a solvent A for swelling, so as toobtain swelled functional fibers; dispersing the fluorescence carbon nanomaterial into a solvent B, adding the swelled functional fibers into the solvent B and uniformly stirring the mixture; performing a heating reaction on a uniformly stirred mixed material and cooling the uniformly stirred mixed material to room temperature after the reaction; washing a cooled product, performing vacuum dryingafter washing, and drying, so as to obtain the fiber immobilized fluorescence carbon nanomaterial. According to the technical scheme, the problems of separation and recycling of the fluorescence carbon nanomaterial in an application process in the fields of fluorescence probes, photocatalysis and the like can be effectively solved; the problem in fluorescence quenching after the fluorescence carbon nanomaterial is immobilized is solved.

Description

[0001] 1. Technical field: [0002] The invention relates to a method for immobilizing fluorescent carbon nanometer materials, in particular to a method for immobilizing fibers of fluorescent carbon nanometer materials. [0003] 2. Background technology: [0004] Compared with traditional semiconductor quantum dots and fluorescent dyes, fluorescent carbon nanomaterials have the advantages of non-toxicity, low cost, anti-photodrifting, excellent chemical stability and biocompatibility, etc. , Semiconductor luminescence, solar cells and photocatalysis have certain application prospects, especially in the field of photocatalysis, the photoresponse range of fluorescent carbon nanomaterials is wider (from ultraviolet to near infrared), and more sunlight can be used. Therefore, it has broad application value and prospects in visible light and near-infrared photocatalysis. [0005] Although fluorescent carbon nanomaterials have excellent photocatalytic properties, they are difficult ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/74C09K11/65C09K11/02
CPCC09K11/02C09K11/65D06M11/74
Inventor 黄佳佳肖俊峰王景涛李奕帆李梦雨炊宁博原思国
Owner ZHENGZHOU UNIV
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