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Preparation method of antibacterial active carbon

A technology of activated carbon and preparation steps is applied in the field of preparation of bacteriostatic activated carbon, which can solve the problems of bacterial growth and poor bacteriostatic properties, and achieve the effect of reducing the growth of bacteria.

Inactive Publication Date: 2017-12-08
常州可赛成功塑胶材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The main technical problem to be solved by the present invention is to provide a preparation method of antibacterial activated carbon in view of the defects that the current activated carbon absorbs a large amount of organic matter to cause bacterial growth and poor antibacterial performance

Method used

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  • Preparation method of antibacterial active carbon

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specific Embodiment approach

[0020] Weigh 600-800g of rice husks, wash them with water for 3-5 times, heat them in an oven to 90-110°C, and dry them for 8-10 hours to obtain dried and cleaned rice husks; weigh 400-500g of perilla leaves, Put the perilla leaves in a mortar and grind for 2-3 hours, filter and remove the filter residue to obtain the filtrate, put the filtrate in a separatory funnel, add dichloroethane 2-4 times the volume of the filtrate into the separatory funnel, wash and extract with water for 3-3 hours 5 times, finally separated to obtain the lower layer liquid, put the lower layer liquid into a rotary evaporator, and rotate at a speed of 70-80r / min at 50-60°C to constant weight to obtain perilla extract powder; ZnCl with a concentration of 5.0mol / L 2 Solution and CuCl with a concentration of 0.4mol / L 2 The solution is mixed as a composite activator, and the dried and cleaned rice husk is mixed with the composite activator at a mass ratio of 1:5, and soaked for 16-18 hours to obtain the...

example 1

[0022] Weigh 600g of rice husks, wash them with water for 3 times, heat them in an oven to 90°C, and dry them for 8 hours to obtain dried and washed rice husks; weigh 400g of perilla leaves and grind them in a mortar for 2 hours , filter and remove the filter residue to obtain the filtrate, put the filtrate in a separatory funnel, add dichloroethane with 2 times the volume of the filtrate to the separatory funnel, wash and extract 3 times, finally separate the lower layer liquid, put the lower layer liquid into the rotary evaporation Rotary evaporation at 50°C at a speed of 70r / min to constant weight in the instrument, to obtain perilla extract powder; ZnCl with a concentration of 5.0mol / L 2 Solution and CuCl with a concentration of 0.4mol / L 2 The solution is mixed as a composite activator, and the dried and cleaned rice husk is mixed with the composite activator at a mass ratio of 1:5, and soaked for 16 hours to obtain the soaked raw material; the soaked raw material is place...

example 2

[0024] Weigh 700g of rice husks, wash them with water for 4 times, heat them in an oven to 100°C, and dry them for 9 hours to obtain dried and washed rice husks; weigh 450g of perilla leaves and grind them in a mortar for 2.5 h, filter and remove the filter residue to obtain the filtrate, place the filtrate in a separatory funnel, add dichloroethane that is 3 times the volume of the filtrate in the separatory funnel, wash and extract 4 times, and finally separate the lower layer liquid, put the lower layer liquid into the rotating In the evaporator, rotate at 55°C at a speed of 75r / min to constant weight to obtain perilla extract powder; ZnCl with a concentration of 5.0mol / L 2 Solution and CuCl with a concentration of 0.4mol / L 2 The solution is mixed as a composite activator, and the dried and cleaned rice husk is mixed with the composite activator at a mass ratio of 1:5, and soaked for 17 hours to obtain the soaked raw material; the soaked raw material is placed in a high-tem...

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Abstract

The invention discloses a preparation method of antibacterial active carbon, which belongs to the technical field of water treatment preparation. Rice husks are subjected to hydrolytic degradation under the action of a compound activator of zinc chloride and copper chloride so as to form a low polymer and be dewatered through reaction, so that an intermediate product can be promoted to be condensed to form a graphite-like microcrystalline structure and produce a porous system; under an acidic condition, a large number of residues of zinc and copper ions in high concentration form a complex in an aromatization organic matter so as to be adsorbed in micropores of the graphite-like microcrystalline structure, and the copper and zinc ions can remarkably inhibit amination of bacteria on nitrite, so that the breeding of the bacteria is reduced, and the aim of an antibacterial effect is achieved. Apurple perilla extract mainly contains perillaldehyde which is a powerful antibacterial substance and has a certain damage effect on formation of a bacterial cell wall, and after activated carbon is soaked in an acetone solution of the purple perilla extract, the purple perilla extract is distributed in activated carbon pores so as to achieve an inhibition effect on surrounding bacteria breeding, so that the aim of the antibacterial effect is achieved.

Description

technical field [0001] The invention discloses a preparation method of antibacterial activated carbon, which belongs to the technical field of water treatment preparation. Background technique [0002] Activated carbon is a black porous solid carbon. In the early days, it was produced by carbonization and activation of wood, hard nut shells or animal bones, and later changed to coal through crushing and molding or carbonization and activation of uniform coal particles. The main component is carbon, and contains a small amount of oxygen, hydrogen, sulfur, nitrogen, chlorine and other elements. In terms of structure, microcrystalline carbon is irregularly arranged, and there are pores between cross-links, which will produce carbon tissue defects during activation, so it is a porous carbon with low packing density and large specific surface area. The specific surface area of ​​ordinary activated carbon is 500~1700m 2 / g room. It has strong adsorption properties and is an in...

Claims

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Application Information

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IPC IPC(8): C01B32/348C01B32/324A01N59/16A01N59/20A01P1/00
CPCA01N59/16A01N59/20
Inventor 何俊欣陈莉莉林大伟
Owner 常州可赛成功塑胶材料有限公司
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