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A preparation method of three-dimensional biomass porous carbon with high specific surface area and easy graphitization at low temperature

A technology with high specific surface area and high specific surface area, applied in the field of adsorption, can solve the problems of pleural infection, mutagenicity, teratogenicity, etc., and achieve the effects of low preparation cost, improved adsorption capacity, and increased electrical conductivity

Active Publication Date: 2022-04-22
FUZHOU UNIV
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Problems solved by technology

However, MG has been reported to produce a number of toxicological symptoms, including carcinogenicity, teratogenicity, mutagenicity, and pleural infection

Method used

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  • A preparation method of three-dimensional biomass porous carbon with high specific surface area and easy graphitization at low temperature
  • A preparation method of three-dimensional biomass porous carbon with high specific surface area and easy graphitization at low temperature
  • A preparation method of three-dimensional biomass porous carbon with high specific surface area and easy graphitization at low temperature

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Embodiment

[0029] Preparation of three-dimensional biomass porous carbon with high specific surface area and easy graphitization at low temperature, the preparation process includes the following steps:

[0030] The garlic purchased in the market is washed and placed in a pulverizer, and a certain amount of deionized water is added for pulverization to obtain a slurry for later use.

[0031] At room temperature, put sucrose and zinc nitrate hexahydrate (mass ratio: 1:1) in a beaker, heat in a water bath to 80°C to completely melt zinc nitrate hexahydrate, and keep stirring to mix sucrose and zinc nitrate hexahydrate evenly and transfer quickly Put it in a constant temperature drying oven at 170°C for foaming treatment. After the foaming is completely taken out and cooled, put it in an agate mortar and grind it into powder, then add 20%wt (accounting for the overall mass) of the garlic slurry after the above treatment and continue to grind until it is evenly mixed. , put it into a corundu...

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Abstract

The invention discloses a method for preparing a three-dimensional biomass porous carbon with high specific surface area, low temperature and easy graphitization. Firstly, a wet chemical method is used to prepare a three-dimensional biomass porous carbon precursor, which is mixed with biomass garlic slurry and dried. Heat treatment in an inert atmosphere for 2 hours, and then graphitization treatment for 2 hours under the protection of a nitrogen atmosphere to obtain a three-dimensional biomass porous carbon with a high specific surface area and easy graphitization at low temperature. The process adopted in the present invention is simple and convenient, has low requirements on equipment, is easy to implement, and has low preparation cost; and the high specific surface three-dimensional porous carbon prepared by the present invention has a high specific surface area and rich three-dimensional structure; it can be used as a A good absorbent material. Its specific surface area is significantly higher than similar materials.

Description

technical field [0001] The invention belongs to the technical field of adsorption, and relates to a preparation method of a three-dimensional high specific surface biomass porous carbon, in particular to the preparation of a three-dimensional biomass porous carbon produced by compounding precursors produced by decomposition of biomass garlic and sucrose through carbonization. Background technique [0002] Porous carbon material is a kind of porous material prepared by carbonizing, activating or other methods from plant-derived carbon-containing materials or carbon-containing compounds. Porous carbon materials have high specific surface area, well-developed pore structure, and excellent heat and corrosion resistance properties, which have good application prospects in fields such as adsorption, catalysis, and energy storage. [0003] Dyestuffs are widely used in various industries, such as textile, paint, tanning, plastic, rubber, pharmacy, electroplating and food processing,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/205
CPCC01B32/205
Inventor 俞瀚王鼎琦张新奇黄清明王康
Owner FUZHOU UNIV
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