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

Fe3O4/mesoporous graphitized carbon compound as well as preparation method and application thereof

A graphitized carbon and composite technology, applied in the direction of graphene, ferrous oxide, iron oxide/iron hydroxide, etc., can solve the problems of limited catalytic activity, reduced exposed surface area, easy agglomeration, etc., and achieve stability The effects of spatial structure, good peroxidase-like activity, and good conductivity

Inactive Publication Date: 2021-09-03
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional two-dimensional graphitic carbon materials are prone to agglomeration due to the strong van der Waals force between adjacent nanosheets, which reduces the exposed surface area and hinders material transport, which limits the catalytic activity.

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
  • Fe3O4/mesoporous graphitized carbon compound as well as preparation method and application thereof
  • Fe3O4/mesoporous graphitized carbon compound as well as preparation method and application thereof
  • Fe3O4/mesoporous graphitized carbon compound as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1. Synthesis of Fe-MOF materials

[0047] The Fe-MOF material was synthesized by the hydrothermal method as a precursor, 50mL of ultrapure water was added as a reaction solvent into the liner of a high-pressure polytetrafluoroethylene reactor, 1.40-1.60g of ferric chloride hexahydrate was added as a source of metal salt, and 0.12 ~0.16g of 2-aminoterephthalic acid is used as an organic ligand to chelate the metal salt center, and the mixed solution is stirred with a magnetic stirrer at room temperature for 1 to 2 hours. Add 0.60-0.80g of Pluronic F127, Pluronic F127 is a non-ionic surfactant, which can promote the solubility of non-water-soluble raw materials in solvents. Then add 0.6-0.8mL acetic acid solution, because acetic acid has a carboxyl structure, it can compete with 2-aminoterephthalic acid to bind metal salts, and can play a role in modulating the crystallization process and material particle size. The above mixed solution was stirred with a magnetic stirre...

Embodiment 2

[0055] Will Fe 3 o 4 / Mesoporous graphitized carbon composites as peroxidase-like biosensors:

[0056] 1. Fe 3 o 4 / Mesoporous graphitized carbon composite is used as a peroxidase-like cascade colorimetric biosensor to detect glucose, and the specific steps are as follows:

[0057] (a) dissolving glucose in a phosphate buffer solution with a concentration of 10 mM and pH=7.0 to prepare glucose solutions of different concentrations;

[0058] (b) adding 40 μL of glucose oxidase with a concentration of 0.2 mg / mL to 360 μL of glucose solutions of different concentrations prepared in step (a) to obtain solution A;

[0059] (c) Add 550 μL of NaAc-HAc buffer solution with a concentration of 0.2M and pH=4, 40 μL of TMB solution with a concentration of 1 mM and 10 μL of Fe with a concentration of 1 mg / mL to solution A in (b). 3 o 4 / Mesoporous graphitized carbon solution to form a mixed solution; after incubation at 45°C for 20 minutes, it is used for the determination of the glu...

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

No PUM Login to View More

Abstract

The invention provides a Fe3O4 / mesoporous graphitized carbon compound as well as a preparation method and application thereof. The preparation method of the Fe3O4 / mesoporous graphitized carbon compound comprises the following steps: preparing a Fe-MOF material as a precursor; placing the precursor in a tubular furnace, heating to 400 DEG C in an argon atmosphere at a heating rate of 3-6 DEG C / min, calcining at 400 DEG C for 20-30 min, and cooling to room temperature after calcining to obtain a product A; and heating the product A to 700 DEG C in an argon atmosphere at a heating rate of 2-4 DEG C, calcining at 700 DEG C for 50-70 minutes, and naturally cooling to room temperature after calcining to obtain the Fe3O4 / mesoporous graphitized carbon compound. The Fe3O4 / mesoporous graphitized carbon compound prepared by the method disclosed by the invention can be used for constructing a nano-enzyme biosensor for detecting a target object. In addition, the preparation method is simple, efficient and convenient to operate.

Description

technical field [0001] The present invention relates to the field of high peroxidase nanomaterials, more specifically, to a kind of Fe 3 o 4 / Mesoporous graphitized carbon composite and its preparation method and application. Background technique [0002] Biosensors based on enzymatic reactions have been attracting much attention from researchers. Such sensors (such as enzyme-linked immunosorbent assay) can perform direct, selective and highly sensitive determination of target substances without side effects. Since natural enzymes are easily affected by environmental factors (pH, temperature, etc.), preparation is time-consuming, expensive, and difficult to store, they are difficult to be used as catalysts in large-scale production. Over the past few decades, efforts have been devoted to developing artificial enzymes that can replace natural enzymes. Among them, due to the wide application value of peroxidase, the research on peroxidase-like enzymes is the most favored. ...

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
IPC IPC(8): C01G49/08C01B32/184G01N21/78
CPCC01G49/08C01B32/184G01N21/78C01P2004/80C01P2004/04
Inventor 许宙程云辉李琳于少艺许柯宇陈茂龙
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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