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Blue fluorescence carbon quantum dot modified super-hydrophobic material as well as preparation method and application thereof

A technology of carbon quantum dots and blue fluorescence, applied in the field of superhydrophobic materials and their preparation, can solve the problems of mutual combination and less research on synergy, and achieve the effects of excellent superhydrophobic performance, low price and wide source of raw materials

Active Publication Date: 2021-11-12
NANJING NORMAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although superhydrophobic materials and carbon dots are widely used, there are few studies on the combination and synergy of these two materials, especially the combination of the two as superhydrophobic materials and the application of the materials as nanofillers in polymer matrices. Light-converting-superhydrophobic bifunctional, no literature report

Method used

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  • Blue fluorescence carbon quantum dot modified super-hydrophobic material as well as preparation method and application thereof
  • Blue fluorescence carbon quantum dot modified super-hydrophobic material as well as preparation method and application thereof
  • Blue fluorescence carbon quantum dot modified super-hydrophobic material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Step 1, the method for preparing modified layered aluminosilicate is to add 3 g of montmorillonite to deionized water, stir at 80 ° C for 3 h, and then add 0.8 g of modifier (octadecyl trimethyl bromide Ammonium chloride) was dissolved in deionized water, and then the modifier solution was mixed with the layered aluminosilicate solution and stirred for 3 h. Centrifuge to obtain precipitates, dry in an oven, grind and sieve to obtain modified montmorillonite.

[0039] Step 2, the preparation method of blue fluorescent carbon quantum dots by hydrothermal method is as follows: weigh 1 g of citric acid and 1 g of banana peel and dissolve them in 20 mL of deionized water, use ammonia water to adjust the pH of the solution to 7, and place them in a hydrothermal reaction kettle , react at 180°C for 12 h, after cooling to room temperature, centrifuge to separate large particles, freeze and dry the supernatant in vacuum to obtain blue fluorescent carbon quantum dots, and dissolv...

Embodiment 2

[0049] Step 1, the method for preparing modified layered aluminosilicate is to first add 3 g of montmorillonite to deionized water, stir at 80 ° C for 3 h, and then add 0.4 g of modifier (hexadecyl trimethyl Ammonium bromide) was dissolved in deionized water, and then the modifier solution was mixed with the layered aluminosilicate solution and stirred for 3 h. Centrifuge to obtain precipitates, dry in an oven, grind and sieve to obtain modified montmorillonite.

[0050] Step 2, the preparation method of the blue fluorescent carbon quantum dots prepared by the hydrothermal method is to weigh 1g of citric acid and 1g of banana peel and dissolve them in 20 mL of deionized water, adjust the pH of the solution to 7 with ammonia water, and place them in a hydrothermal reaction kettle In the process, react at 180°C for 12 h, cool to room temperature, centrifuge to separate large particles, freeze and dry the supernatant in vacuum to obtain blue fluorescent carbon quantum dots, and d...

Embodiment 3

[0054] Step 1, the method for preparing modified layered aluminosilicate is to first add 3 g of talc to deionized water, stir at 60 ° C for 3 h, and then add 0.35 g of modifier (dodecyl trimethyl bromide Ammonium) was dissolved in deionized water, and then the modifier solution was mixed with the layered aluminosilicate solution and stirred for 3 h. Centrifuge to obtain precipitates, dry in an oven, grind and sieve to obtain modified talc.

[0055] Step 2, the preparation method of the blue fluorescent carbon quantum dots prepared by the hydrothermal method is to weigh 1g of citric acid and 1g of banana peel and dissolve them in 20 mL of deionized water, adjust the pH of the solution to 7 with ammonia water, and place them in a hydrothermal reaction kettle , react at 180°C for 12 h, cool to room temperature, centrifuge and separate large particles, freeze and dry the supernatant in vacuum to obtain blue fluorescent carbon quantum dots, and dissolve carbon quantum dots in deion...

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Abstract

The invention discloses a blue fluorescence carbon quantum dot modified super-hydrophobic material as well as a preparation method and application thereof, and belongs to the technical field of hydrophobic materials. According to the super-hydrophobic material, on the one hand, layered aluminosilicate is modified by using a modifier, so that SiO2 nanospheres and carbon quantum dots can be uniformly distributed on the surface of a sheet layer during co-hydrolysis; on the other hand, fluoroalkyl silane provides a low-surface-energy substance F, so that the material has two super-hydrophobic conditions, namely, a rough structure and a low-surface-energy substance. The super-hydrophobic material has good and stable light conversion and super-hydrophobic performance, and can be better applied to the fields of polymer self-cleaning, dust prevention, light conversion and the like as a functional filler.

Description

technical field [0001] The invention belongs to the technical field of hydrophobic materials, and in particular relates to a superhydrophobic material modified with blue fluorescent carbon quantum dots and a preparation method and application thereof. Background technique [0002] The unique wettability of the surface of superhydrophobic materials makes them have broad application prospects in production and life. In the field of construction, the use of superhydrophobic materials on the exterior walls of buildings can give them self-cleaning properties, which greatly reduces the difficulty of cleaning and maintenance costs; in the field of marine, construct superhydrophobic coatings on the surface of mesh or porous The difference in wettability of layers to oil and water can realize high-efficiency oil-water separation, which is of great significance for environmental protection and resource recycling. At the same time, coating super-hydrophobic materials on the surface of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/42C09C3/08C09C3/06C09C3/12C09C3/10C09K11/02C09K11/65B82Y20/00B82Y30/00B82Y40/00C08K9/02C08K9/04C08K9/06C08K3/34
CPCC09C1/42C09C3/08C09C3/06C09C3/12C09C3/10C09C3/006C09K11/02C09K11/65B82Y20/00B82Y30/00B82Y40/00C08K9/02C08K9/04C08K9/06C08K3/346C08K3/34
Inventor 周宁琳张盼石绍泽楚晓红刘奕含宋秋娴高雨萌冯文立刘琴
Owner NANJING NORMAL UNIVERSITY