Preparation method of high-toughness and high-adsorption biomass-based foamed carbon

A high adsorption, biomass technology, applied in chemical instruments and methods, carbon compounds, silica, etc., can solve the problems of uneven pore size, weak adsorption capacity, low porosity, etc., to achieve uniform pore size, enhanced adsorption, The effect of high adsorption rate

Inactive Publication Date: 2019-01-22
CHANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide a high-toughness and high-adsorption biomass-based foam carbon for the existing defects of biomass-based foam carbon, such as brittleness, uneven pore size, low porosity, and weak adsorption capacity. preparation method

Method used

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  • Preparation method of high-toughness and high-adsorption biomass-based foamed carbon
  • Preparation method of high-toughness and high-adsorption biomass-based foamed carbon

Examples

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example 1

[0021] Mix camphor leaves and phosphoric acid solution with a mass fraction of 40% according to the mass ratio of 1:2 and pour them into the carbonization furnace. Under the protection of argon, the temperature is programmed to 600 °C at a rate of 10 °C / min, and the carbonization reaction 2h, after the reaction is over, take out the product, wash the product with distilled water until it is neutral, put it in an oven, and dry it for 60 minutes at a temperature of 130°C to obtain a dried product, put the dried product in a grinder, and grind it for 2 hours After grinding, pass through a 150 mesh sieve to obtain camphor leaf activated carbon; the above-mentioned camphor leaf activated carbon and the sodium silicate solution with a mass fraction of 30% are mixed in a mass ratio of 1:2 and poured into a beaker, and then add mass Hydrochloric acid solution with a fraction of 20% until the pH of the solution is 4 to obtain a mixed solution, put the mixed solution in a heating device,...

example 2

[0023]Mix camphor leaves and phosphoric acid solution with a mass fraction of 40% according to the mass ratio of 1:2 and pour them into the carbonization furnace. Under the protection of argon, the temperature is programmed to 700 °C at a rate of 10 °C / min, and the carbonization reaction 2h, after the reaction is over, take out the product, wash the product with distilled water until it is neutral, put it in an oven, and dry it for 80 minutes at a temperature of 140°C to obtain a dried product, put the dried product in a grinder, and grind it for 2 hours After grinding, pass through a 150 mesh sieve to obtain camphor leaf activated carbon; the above-mentioned camphor leaf activated carbon and the sodium silicate solution with a mass fraction of 30% are mixed in a mass ratio of 1:2 and poured into a beaker, and then add mass Hydrochloric acid solution with a fraction of 20% until the pH of the solution is 4 to obtain a mixed solution, put the mixed solution in a heating device, ...

example 3

[0025] Mix camphor leaves and phosphoric acid solution with a mass fraction of 40% in a mass ratio of 1:2 and pour them into a carbonization furnace. Under argon protection, the temperature is programmed to rise to 800°C at a rate of 10°C / min, and the carbonization reaction 3h, after the reaction is over, take out the product, wash the product with distilled water until it is neutral, put it in an oven, and dry it for 90 minutes at a temperature of 150°C to obtain a dried product, put the dried product in a grinder, and grind for 3 hours After grinding, pass through a 150 mesh sieve to obtain camphor leaf activated carbon; the above-mentioned camphor leaf activated carbon and the sodium silicate solution with a mass fraction of 30% are mixed in a mass ratio of 1:2 and poured into a beaker, and then add mass Hydrochloric acid solution with a fraction of 20% until the pH of the solution is 5 to obtain a mixed solution, put the mixed solution in a heating device, and heat the reac...

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Abstract

The invention relates to the technical field of preparation of foamed carbon, and concretely relates to a preparation method of high-toughness and high-adsorption biomass-based foamed carbon. The preparation method comprises the following steps: preparing active carbon from camphor tree leaves, preparing nano-silica from sodium silicate, combining the nano-silica to the surface of the camphor treeleaf active carbon, preparing bamboo charcoal fibers from bamboo skins, and carrying out mixing and high-temperature carbonization on the bamboo charcoal fibers and the camphor tree leaf active carbon to obtain the high-toughness and high-adsorption biomass-based foamed carbon. The camphor tree leaf active carbon has uniform pore sizes and a high adsorption rate, the silica is a flocculent and netted quasi-particle structure, the camphor tree leaf active carbon combined with the nano-silica can be used as a template for the biomass-based foamed carbon, the addition of the bamboo charcoal fibers improves the toughness, the antibacterial property and the ultraviolet resistance of the foamed carbon, and the bamboo charcoal fibers are combined into apertures of the camphor tree leaf active carbon, so the obtained high-toughness and high-adsorption biomass-based foamed carbon has a broad application prospect.

Description

technical field [0001] The invention relates to the technical field of foam carbon preparation, in particular to a preparation method of high-toughness and high-adsorption biomass-based foam carbon. Background technique [0002] Foam carbon is a lightweight porous material with a three-dimensional network structure composed of cells and interconnected cell walls. It has low density, high strength, high thermal conductivity, shock resistance, wave absorption, noise reduction, and chemical resistance. Corrosion, low thermal expansion coefficient and other excellent properties are widely used in aerospace, rocket ships and other fields, such as heat transfer exchange systems for aerospace vehicles and satellites, shock-resistant and noise-reducing launch platforms for rockets, large heat exchangers for chemical plants and Small heat removal devices for computer devices can also be used in catalyst carriers, gas adsorbents, filtration devices, biological materials and other fiel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/342C01B32/324C01B32/354D01F9/16C01B33/12B82Y40/00
CPCB82Y40/00C01B33/12C01B32/324C01B32/342C01B32/354D01F9/16
Inventor 雷春生陈珺赵金晶丁春美
Owner CHANGZHOU UNIV
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