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Activated carbon as well as preparation method and application thereof

A technology of activated carbon and decay, applied in chemical instruments and methods, other chemical processes, inorganic chemistry, etc., can solve problems such as low activity, poor performance, and small specific surface area

Pending Publication Date: 2021-07-16
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At this stage, there are many difficulties in preparing carbon from waste textiles. The carbon synthesized by direct pyrolysis often shows poor performance (such as small specific surface area and low activity).

Method used

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  • Activated carbon as well as preparation method and application thereof
  • Activated carbon as well as preparation method and application thereof
  • Activated carbon as well as preparation method and application thereof

Examples

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preparation example Construction

[0029] The invention provides a kind of preparation method of gac, comprises the following steps:

[0030] After mixing spoiled biomass, waste textiles and water, ferment to obtain a blended fermentation product;

[0031] performing pyrolysis and carbonization on the blended fermentation product to obtain the activated carbon;

[0032] The temperature of the fermentation is 0-60° C., and the time is 0.1-50 h.

[0033] In the present invention, unless otherwise specified, all preparation materials are commercially available products well known to those skilled in the art.

[0034] In the invention, after mixing spoiled biomass, waste textiles and water, fermentation is carried out to obtain a blended fermentation product; the temperature of the fermentation is 0-60° C., and the time is 0.1-50 hours.

[0035] In the present invention, the rotting biomass preferably includes one or more of rotting vegetables, rotting fruits and rotting hyperaccumulator plants; there is no speci...

Embodiment 1

[0056] Crumble 100g of rotten apples into pulp and 10g of waste cotton cloth into an area of ​​0.1cm 2 After the lumps are stirred and mixed in a crushing mixer, the obtained blend is mixed with 15mL of water, and fermented in a clean fermenter, wherein the fermentation temperature is 25°C, and the fermentation time is 12h to obtain a blended fermentation product;

[0057] After the blended fermentation product was dried in a tube furnace (at a temperature of 105° C. for 24 h); in a nitrogen atmosphere, pyrolytic carbonization and ball milling were performed sequentially, wherein the temperature of pyrolytic carbonization was 600° C. The heating rate is 5°C / min, and the time is 2h; the ball milling time is 10h, the mass ratio of agate balls to materials is 80:1, and the rotating speed is 400r / min to obtain the activated carbon (referred to as DCP);

[0058] The gac described in 5mg is placed in 50mL cadmium ion concentration and is 50mg / L, in the solution that Congo red dyestu...

Embodiment 2

[0069] Crumble 100g of rotten lemon into pulp and 10g of waste cotton cloth into an area of ​​0.1cm 2 After the lumps are mixed by ball milling, the obtained blend is then mixed with 13mL of water, and fermented in a clean fermenter at a temperature of 30°C for 10 hours to obtain a blended fermented product;

[0070] After the blended fermentation product was dried in a tube furnace (at a temperature of 105° C. for 24 h); in a nitrogen atmosphere, pyrolytic carbonization and ball milling were carried out sequentially, wherein the temperature of pyrolytic carbonization was 700° C. The heating rate is 10°C / min, and the time is 2h; the ball milling time is 12h, the mass ratio of agate balls to materials is 100:1, and the rotating speed is 500r / min, to obtain the activated carbon;

[0071] The gac described in 5mg is placed in 50mL cadmium ion concentration and is 60mg / L, in the solution that Congo red dyestuff is 50mg / mL, after absorbing 48h under the condition of 25 ℃, cadmium i...

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Abstract

The invention relates to the technical field of preparation of activated carbon from solid wastes, in particular to activated carbon as well as a preparation method and application thereof. The invention provides a preparation method of activated carbon, which comprises the following steps of mixing rotten biomass, waste textiles and water, and fermenting to obtain a blended fermentation product, and carrying out pyrolysis carbonization on the blended fermentation product to obtain the activated carbon. The fermentation temperature is 0 to 60 DEG C, and the fermentation time is 0.1 to 150 hours. The activated carbon prepared by the preparation method has larger specific surface area and higher activity.

Description

technical field [0001] The invention relates to the technical field of preparing activated carbon from solid waste, in particular to an activated carbon and its preparation method and application. Background technique [0002] In addition to natural fibers such as cotton, wool, silk and hemp, the production of textiles also consumes a large amount of blended and synthetic fibers, which are extracted from non-renewable resources such as petroleum. However, most of the textiles will become waste textiles after a few years, and the recycling rate of waste textiles is very low, so it is impossible to realize the reusability of a large amount of waste textiles. Therefore, how to deal with these waste textiles is the key to achieving sustainable development. [0003] The traditional methods of processing waste textiles mainly include incineration and landfill. In the actual landfill treatment, not only pure cotton fabrics but also blended and synthetic fibers (such as polyester,...

Claims

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Application Information

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IPC IPC(8): C01B32/342C01B32/324B01J20/20B01J20/30C02F1/28C02F101/30C02F101/20
CPCC01B32/342C01B32/324B01J20/20C02F1/283C02F2101/20C02F2101/30B01J2220/4887
Inventor 沈伯雄张瑜
Owner HEBEI UNIV OF TECH
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