Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of in-situ n-doped ordered mesoporous carbon with chitooligosaccharide base prepared by soft template method

A technology of soft template method and chitosan oligosaccharide, which is applied in the field of preparation of chitosan oligosaccharide group in situ N-doped ordered mesoporous carbon by soft template method, which can solve the problem of weak interconnection force and limit the application of macromolecular biomass , structure and morphology are difficult to precisely control, etc.

Active Publication Date: 2022-04-29
GUIZHOU UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the weak interaction between macromolecular carbon precursors such as chitosan and the template agent, it is very difficult to precisely control the pore size, structure and morphology of biomass macromolecular carbon precursors at the nanoscale. Difficulties, therefore, greatly limit the application of macromolecular biomass in the preparation of ordered mesoporous carbon by soft template method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of in-situ n-doped ordered mesoporous carbon with chitooligosaccharide base prepared by soft template method
  • Preparation method of in-situ n-doped ordered mesoporous carbon with chitooligosaccharide base prepared by soft template method
  • Preparation method of in-situ n-doped ordered mesoporous carbon with chitooligosaccharide base prepared by soft template method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Accurately weigh 1.8g of F127 into a 100mL in-situ flask, add 75mL of distilled water and stir slowly at 60°C until dissolved, wait for the complete dissolution of F127, then add 1.8g of chitosan oligosaccharide and stir slowly at 60°C until dissolved, after complete dissolution Ultrasonic the mixed solution for 15min, then pour the mixture into a 100mL polytetrafluoroethylene hydrothermal kettle and let it stand in an oven at 210°C for 12h, collect the solid product after cooling, wash with distilled water and alcohol until the solution is clear, and remove the obtained solid The product was dried overnight in an oven at 80°C, taken out and heated at 1°C / min to 350°C for 2 hours under the protection of N2, then raised to 800°C at 3°C / min and held for 2 hours, then cooled and taken out to obtain chitosan in situ N Doped mesoporous carbon material, named: NMC.

Embodiment 2

[0061] A kind of soft template method prepares the preparation method of chitosan oligosaccharide base in-situ N-doped ordered mesoporous carbon, the steps are as follows:

[0062] 1) Dissolve F127 in water, heat to 60°C in a water bath and stir until completely dissolved to form a clear solution to obtain product A;

[0063] 2) Take chitosan oligosaccharide and add it to product A, the mass ratio of the added chitosan oligosaccharide to F127 in product A is 1:1, continue to stir until the mixture is uniform, and then ultrasonically treat for 15 minutes to form mesoporous polymer to obtain product B;

[0064] 3) Pour product B into a hydrothermal kettle for hydrothermal aging reaction at a temperature of 210°C for 12 hours, and obtain product C after the reaction;

[0065] 4) Take out product C, wash with water, wash with alcohol and dry at 80°C for 12 hours in sequence to obtain product D;

[0066] 5) Take product D in N 2 Low-temperature calcination at 350°C (heating rate ...

Embodiment 3

[0068] A kind of soft template method prepares the preparation method of chitosan oligosaccharide base in-situ N-doped ordered mesoporous carbon, the steps are as follows:

[0069] 1) Dissolve F127 in water, heat to 55°C in a water bath and stir until completely dissolved to form a clear solution to obtain product A;

[0070] 2) Take chitosan oligosaccharide and add it to product A, the mass ratio of the added chitosan oligosaccharide to F127 in product A is 1:0.5, continue stirring until the mixture is uniform, and then ultrasonically treat for 10 minutes to form a mesoporous polymer to obtain product B;

[0071] 3) Pour product B into a hydrothermal kettle for hydrothermal aging reaction at a temperature of 200°C for 15 hours, and obtain product C after the reaction;

[0072] 4) Take product C out, wash it with water, wash with alcohol and dry at 70°C for 15 hours to obtain product D;

[0073] 5) Take product D in N 2 Low-temperature roasting at 330°C (heating rate: 1°C / mi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing chitooligosaccharide-based in-situ N-doped ordered mesoporous carbon by a soft template method. Chitooligosaccharide is used as a carbon and nitrogen source precursor, and energy generated during ultrasonic cavitation is used to make The 1- and 4-linked glycosidic bonds on the long chain structure of chitosan oligosaccharides are broken and degraded, and then the soft template method is used to prepare the in-situ N-doped ordered mesoporous carbon material with uniform and adjustable pore size by hydrothermal self-assembly strategy . The present invention uses chitosan oligosaccharide as the precursor of carbon and nitrogen source, and utilizes the soft template method to prepare ordered mesoporous carbon material, expands the application of macromolecular biomass chitosan oligosaccharide in the preparation of ordered mesoporous carbon, and the preparation has Sequenced mesoporous carbon has the characteristics of good wettability and dispersibility, and uniform and adjustable pore size.

Description

technical field [0001] The invention relates to a preparation method for preparing ordered mesoporous carbon, in particular to a preparation method for preparing chitooligosaccharide-based N-doped ordered mesoporous carbon in situ by a soft template method. Background technique [0002] Ordered mesoporous carbons (OMCs, Ordered mesoporous carbons) refer to carbon materials with a microscopically ordered structure with a pore diameter in the range of 2 to 50 nm. It not only has the advantages of high specific surface area, large pore volume, adjustable pore size, and easy surface modification, but also has the advantages of high chemical inertness, excellent electrical conductivity, and good biocompatibility. Recent studies have shown that nitrogen-doped ordered mesoporous carbon materials have good application prospects in biomedicine, such as drug delivery, biological detection, gene transfection, photothermal therapy, photodynamic therapy, biosensors and other fields. [...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/05
CPCC01B32/05
Inventor 潘红艳林倩曹建新田洪松何顺武孙富豪邓梅雪祖鑫
Owner GUIZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com