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A preparation method of 3D-graphene material using biomass resources as carbon source

A technology of biomass resources and graphene, applied in the field of preparation of 3D-graphene materials, can solve the problems of high production cost, complicated operation, and no patent publications have been found, and achieves low cost, good biocompatibility and good biocompatibility. The effect of conductivity

Active Publication Date: 2022-06-07
TIANJIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods are complicated to operate and expensive to manufacture.
In recent years, the use of biomass as a carbon source to prepare graphene has become a new member of graphene preparation, but there is no related product on the market that uses biomass as a carbon source to prepare three-dimensional graphene. Biomass resources as carbon source for 3D-graphene are very necessary
[0004] Through the search, no patent publications related to the patent application of the present invention have been found

Method used

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  • A preparation method of 3D-graphene material using biomass resources as carbon source
  • A preparation method of 3D-graphene material using biomass resources as carbon source
  • A preparation method of 3D-graphene material using biomass resources as carbon source

Examples

Experimental program
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Effect test

Embodiment 1

[0033] A preparation method of 3D-graphene material using protein as carbon source, the steps are as follows:

[0034] (1) Dissolve bovine serum albumin in the aqueous solution, stir at 20 °C to dissolve it, add sodium sulfate, continue to stir until it forms a uniform solution, and titrate the above-mentioned liquid into ethanol with a syringe pump (titration speed 200ul / min) to obtain The white solid is dried in a vacuum drying oven at 80°C to 120°C for 4 to 12 hours to obtain a mixture of bovine serum albumin and salt;

[0035] Wherein, the mass ratio of the bovine serum albumin and salt is 1:3;

[0036] (2) Put the mixture of protein and salt in step (1) into a tube furnace for carbonization, disperse the carbonized sample in water, and filter to obtain a black solid, that is, a 3D-graphene material.

[0037] The heating program was as follows: from room temperature to 300°C at 2°C / min and maintained for 2 hours, and then heated to 500°C at 3°C / min and maintained for 1 ho...

Embodiment 2

[0039] A preparation method of 3D-graphene material using glycine as carbon source, the steps are as follows:

[0040] (1) Dissolve glycine in the aqueous solution, after stirring at 20 ° C to dissolve it, add potassium chloride, continue to stir until it forms a uniform solution, titrate the above-mentioned liquid into isopropanol with a syringe pump (titration speed 300ul / min), A white solid is obtained, which is dried in a vacuum drying oven at 80°C to 120°C for 4 to 12 hours to obtain a mixture of glycine and salt;

[0041] Wherein, the mass ratio of described glycine and salt is 1:5;

[0042] (2) Put the mixture of step (1) glycine and salt into a tube furnace for carbonization, disperse the carbonized sample in water, and filter to obtain a black solid, that is, a 3D-graphene material is obtained.

[0043] The heating program is as follows: from room temperature to 200°C at 3°C / min and maintained for 1-2 hours, and then heated to 600°C at 1°C / min and maintained for 1-2 ...

Embodiment 3

[0045] A preparation method of 3D-graphene material using glutamic acid as carbon source, the steps are as follows:

[0046] (1) Dissolve glutamic acid in the aqueous solution, stir at normal temperature (25 ° C) to dissolve it, add copper sulfate, continue to stir until it forms a uniform solution, and titrate the above-mentioned liquid into isopropanol with a syringe pump (titration speed 500ul) / min) to obtain a white solid, which is dried in a vacuum drying oven at 80°C to 120°C for 4 to 12 hours to obtain a mixture of glutamic acid and salt;

[0047] Wherein, the mass ratio of described glutamic acid and salt is 1:8;

[0048] (2) Put the mixture of step (1) glutamic acid and salt into a tube furnace for carbonization, disperse the carbonized sample in water, and filter to obtain a black solid, that is, a 3D-graphene material is obtained.

[0049] The heating program is as follows: from room temperature to 350°C at 2°C / min and maintained for 1-2 hours, and then heated to ...

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Abstract

The present invention relates to a kind of preparation method of the 3D-graphene material that uses biomass resource as carbon source, the steps are as follows: (1) dissolve biomass in aqueous solution, after stirring to make it dissolve, add water-soluble inorganic salt, continue to stir until its Form a uniform solution, titrate the above liquid into an organic solvent to obtain a white solid, and dry it in a vacuum oven to obtain a mixture of biomass and salt; (2) put the substance into a tube furnace for carbonization, and disperse the carbonized sample Filter in water to obtain a black solid, which is a 3D-graphene material. The 3D graphene material prepared by the method of the present invention has good water solubility, large specific surface area, high electrical conductivity, uniform material sheet thickness, about 1-2nm, strong adsorption performance for pollutants in dye wastewater, and good for organic dyes. Methyl violet or methylene blue has strong adsorption properties, has good absorption of near-infrared light and can convert it into heat energy.

Description

technical field [0001] The invention belongs to the technical field of functionalized material preparation, in particular to a preparation method of a 3D-graphene material using biomass resources as a carbon source. Background technique [0002] Graphene is a honeycomb 2D planar carbon material composed of sp2 hybridized carbon. It is widely used because of its good physical or chemical properties, such as high electrical conductivity, good flexibility, large specific surface area and near-infrared photothermal conversion. In the fields of batteries, water purification and so on. 3D graphene means that the graphene sheets are connected to each other into a three-dimensional network structure. This three-dimensional structure solves the stacking between single sheets of graphene and produces a large number of multi-level channels, which is very conducive to mass transfer, adsorption and loading. . [0003] Currently, there are various methods for preparing 3D graphene, incl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/184B01J20/20B01J20/30C02F1/28C02F101/34C02F101/36C02F101/38
CPCB01J20/20C01B32/184C02F1/281C02F2101/34C02F2101/36C02F2101/38Y02A20/212
Inventor 邓启良谢江洋李燕丽
Owner TIANJIN UNIV OF SCI & TECH
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