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Method for preparing single-layer graphene from biological agent

A technology of single-layer graphene and biological preparations, applied in the direction of single-layer graphene, graphene, chemical instruments and methods, etc., can solve the problems of unfavorable large-scale preparation, small electrostatic interaction, and low preparation efficiency, and achieve electrostatic interaction Small, promotes dispersion, and has good dispersion performance

Pending Publication Date: 2022-05-31
深圳市中明华顶胜新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the "preparation method of single-layer graphene" with the Chinese patent publication number CN103803536A, graphite is dispersed in a solvent to form a low-concentration dispersion, and single-layer graphene is prepared by ultrasonic dispersion. Graphene interlayer electrostatic effect is little, and dispersibility is good, has higher electric conductivity, although this method can obtain the graphene with little electrostatic effect, good dispersibility, high electric conductivity, but they are unfavorable for large-scale because of low preparation efficiency. preparation of

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  • Method for preparing single-layer graphene from biological agent

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Embodiment 1

[0025] Example 1, please refer to figure 1 , the present invention provides a technical solution: a preparation method for preparing monolayer graphene from a biological agent, comprising the following steps:

[0026] S1, to prepare powder, first, graphite is added to the reaction kettle, and inorganic acid, sodium benzenesulfonate and peroxybenzoic acid are added to the graphite, and then the reaction kettle is stirred and reacted, and then the mixed solution is used to fumigate the steam to prepare a graphite powder;

[0027] S2, prepare a dispersion liquid, slowly add potassium permanganate to the reaction kettle, finish adding in 25min simultaneously, and raise the temperature in the reaction kettle, then add dimethylformamide, acetic anhydride and aniline to mix them evenly , add 300ml deionized water after mixing evenly, and adopt solvothermal method to react to obtain graphene dispersion;

[0028] S3, the dispersion liquid is mixed, a dispersion solvent is added to th...

Embodiment 2

[0040] Example 2, please refer to figure 1 , the present invention provides a technical solution: a preparation method for preparing monolayer graphene from a biological agent, comprising the following steps:

[0041] S1, to prepare powder, first, graphite is added to the reaction kettle, and inorganic acid, sodium benzenesulfonate and peroxybenzoic acid are added to the graphite, and then the reaction kettle is stirred and reacted, and then the mixed solution is used to fumigate the steam to prepare a graphite powder;

[0042] S2, prepare a dispersion liquid, slowly add potassium permanganate to the reaction kettle, finish adding in 20min simultaneously, and raise the temperature in the reaction kettle, then add dimethylformamide, acetic anhydride and aniline to mix them evenly , add 300ml deionized water after mixing evenly, and adopt solvothermal method to react to obtain graphene dispersion;

[0043] S3, the dispersion liquid is mixed, a dispersion solvent is added to th...

Embodiment 3

[0055] Example three, please refer to figure 1 , the present invention provides a technical scheme: a preparation method for preparing single-layer graphene from a biological agent, comprising the following steps:

[0056] S1, to prepare powder, first, graphite is added to the reaction kettle, and inorganic acid, sodium benzenesulfonate and peroxybenzoic acid are added to the graphite, and then the reaction kettle is stirred and reacted, and then the mixed solution is used to fumigate the steam to prepare a graphite powder;

[0057] S2, prepare dispersion liquid, slowly add potassium permanganate to the reaction kettle, add it in 18min simultaneously, and raise the temperature in the reaction kettle, then add dimethylformamide, acetic anhydride and aniline, and mix them evenly , add 300ml deionized water after mixing evenly, and adopt solvothermal method to react to obtain graphene dispersion;

[0058] S3, the dispersion liquid is mixed, a dispersion solvent is added to the ...

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Abstract

The invention provides a preparation method for preparing single-layer graphene from a biological agent, and relates to the technical field of single-layer graphene preparation, and the preparation method comprises the following steps: S1, preparing powder: firstly, adding graphite into a reaction kettle, adding inorganic acid, sodium benzenesulfonate and peroxybenzoic acid into the graphite, and then carrying out stirring reaction through the reaction kettle, so as to obtain the powder; fumigating the steam by using the mixed solution to prepare graphite powder; s2, preparation of a dispersion liquid: slowly adding potassium permanganate into the reaction kettle within 15-25 min at the same time, raising the temperature in the reaction kettle, then adding dimethylformamide, acetic anhydride and aniline, uniformly mixing, adding 300 ml of deionized water after uniform mixing, and carrying out a reaction by adopting a solvothermal method to obtain the graphene dispersion liquid. On the basis that the graphene is small in electrostatic interaction, good in dispersing performance and high in conductivity, the preparation efficiency is improved, and therefore large-scale production of the graphene is facilitated.

Description

technical field [0001] The invention relates to the technical field of preparation of single-layer graphene, in particular to a preparation method for preparing single-layer graphene by a biological agent. Background technique [0002] Graphene is a sp 2 Hybrid-connected carbon atoms are tightly packed into a new material with a single-layer two-dimensional honeycomb lattice structure, which has excellent optical, electrical, and mechanical properties, and has applications in materials science, micro-nano processing, energy, biomedicine, and drug delivery. Important application prospects, considered a future revolutionary material. [0003] Chinese Patent Publication No. CN103803536A "Preparation method of single-layer graphene", is to disperse graphite in a solvent to form a low-concentration dispersion liquid, use ultrasonic dispersion to prepare single-layer graphene, and at the same time prepare the obtained graphene control Graphene has small electrostatic effect betw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/184C01B32/194
CPCC01B32/184C01B32/194C01B2204/02C01B2204/22Y02E60/13
Inventor 俞梦孙叶伦良李娟
Owner 深圳市中明华顶胜新材料有限公司