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

Preparation method of colloidal carbon spheres loaded with magnetic Fe3O4 nanoparticles on surface

A nanoparticle, surface-loaded technology, applied in the field of preparation of surface-loaded magnetic Fe3O4 nanoparticle colloidal carbon spheres, to achieve the effect of easy large-scale production, easy control of conditions, and simplified experimental process

Inactive Publication Date: 2012-05-23
TONGJI UNIV
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Li Yadong of Tsinghua University and others synthesized colloidal carbon spheres with functional groups such as hydroxyl and carbonyl groups at a low temperature below 200 °C using glucose as a carbon source by hydrothermal method. These carbon spheres with active groups on the surface can interact with other ions Form carbon spheres with metals on the surface, but the synthesis of carbon spheres with metals on the surface needs to add metal salt solution and the synthesis process needs to be distributed

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 colloidal carbon spheres loaded with magnetic Fe3O4 nanoparticles on surface
  • Preparation method of colloidal carbon spheres loaded with magnetic Fe3O4 nanoparticles on surface
  • Preparation method of colloidal carbon spheres loaded with magnetic Fe3O4 nanoparticles on surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Surface loaded magnetic Fe 3 o 4 A method for preparing nanoparticle colloidal carbon spheres, comprising the following steps:

[0029] (1) Disperse 30 mg of ferrocenecarboxylic acid in 8 mL of absolute ethanol.

[0030] (2) Add the mixture obtained in step (1) into a reaction kettle with a volume of 13 mL.

[0031] (3) Place the reactor containing the mixture in step (2) in a temperature-controlled furnace and heat it to 160° C. for 24 hours, then take out the container, and let it cool down to room temperature naturally. A black product was obtained, and the synthesized product was washed successively with absolute ethanol and acetone, and centrifuged to obtain the desired product.

[0032] figure 1 and figure 2 The SEM and TEM images of the product obtained under the reaction conditions, as can be seen from the figure, the average size of colloidal carbon spheres is about 100nm.

Embodiment 2

[0034] Surface loaded magnetic Fe 3 o 4 A method for preparing nanoparticle colloidal carbon spheres, comprising the following steps:

[0035] (1) Disperse 50 mg of ferrocenecarboxylic acid in 8 mL of absolute ethanol.

[0036] (2) Add the mixture obtained in step (1) into a reaction kettle with a volume of 13 mL.

[0037] (3) Place the reactor containing the mixture in step (2) in a temperature-controlled furnace and heat it to 160° C. for 24 hours, then take out the container, and let it cool down to room temperature naturally. A black product was obtained, and the synthesized product was washed successively with absolute ethanol and acetone, and centrifuged to obtain the desired product.

[0038] image 3 and Figure 4 According to the SEM and TEM images of the product obtained under this reaction condition, the average size of colloidal carbon spheres is about 150 nm. It can be seen from the TEM image that the surface of colloidal carbon spheres is loaded with magnet...

Embodiment 3

[0040] Surface loaded magnetic Fe 3 o 4 A method for preparing nanoparticle colloidal carbon spheres, comprising the following steps:

[0041] (1) Disperse 70 mg of ferrocenecarboxylic acid in 8 mL of absolute ethanol.

[0042] (2) Add the mixture obtained in step (1) into a reaction kettle with a volume of 13 mL.

[0043] (3) Place the reactor containing the mixture in step (2) in a temperature-controlled furnace and heat it to 160° C. for 24 hours, then take out the container, and let it cool down to room temperature naturally. A black product was obtained, and the synthesized product was washed successively with absolute ethanol and acetone, and centrifuged to obtain the desired product.

[0044] The average size of colloidal carbon spheres obtained under this reaction condition is about 200nm.

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
sizeaaaaaaaaaa
sizeaaaaaaaaaa
sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of colloidal carbon spheres loaded with magnetic Fe3O4 nanoparticles on the surface. The method comprises the following steps of: dispersing ferrocenecarboxylic acid into absolute ethyl alcohol; adding an obtained mixture into a reaction kettle; putting the reaction kettle into a controlled-temperature furnace, heating to 140-180 DEG C, and reacting for 4-28 hours; taking the container out; naturally cooling to room temperature to obtain a black product; and washing and centrifugally separating to obtain a needed product. Process parameters are adjustable, an entire preparation process is easy and convenient to operate, conditions are easy to control, and post-treatment of a product is convenient, so that large-scale production is easy, and side products causing pollution to the environment are not produced during preparation; the method is accordant with a sustainable development requirement, and is an environmentally-friendly synthesis process; obtained colloidal carbon spheres serving as a product have high purity and high monodispersity, and are in nanoscale sizes; and the loaded magnetic nanoparticles have adjustable loading capacity, superparamagnetic property and high application potentials in targeting medicaments and separation technologies.

Description

technical field [0001] The invention relates to the technical field of preparation of nano / micro scale carbon sphere materials, in particular to surface-loaded magnetic Fe 3 o 4 A method for preparing nanoparticle colloidal carbon spheres. Background technique [0002] Since the discovery of C 60 Since the discovery of carbon nanotubes, comprehensive research on carbon materials has been carried out worldwide. Carbon materials with different morphologies have potential applications in many aspects, so carbon materials with unique structures have attracted widespread attention. Many carbon materials with different morphologies such as carbon onions, carbon cones, carbon beads, carbon spheres, etc. have been successfully synthesized. Among these carbon materials with different morphologies, carbon spheres have attracted attention as a new type of material due to their properties similar to fullerene or graphite. These similar properties make carbon spheres widely used in ...

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 Applications(China)
IPC IPC(8): B01J13/02C01B31/02H01F1/11C01B32/05C01B32/15
Inventor 吴庆生王荔祖袁品仕
Owner TONGJI 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