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Porous carbon piece, preparation method of porous carbon piece, and application of porous carbon piece in cigarette filter

A technology of porous carbon and copper sheets, which is applied in applications, e-liquid filter elements, separation methods, etc., can solve the problems of complex raw materials and steps of porous carbon sheets, is not conducive to industrial production, and has large pore diameters of porous carbon sheets. Controlled and industrialized production, high yield, good material adsorption performance

Active Publication Date: 2014-05-21
CHINA TOBACCO SHANDONG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The porous carbon sheet prepared by this method has a large pore size and a small specific surface area. At the same time, the raw materials and steps for preparing the porous carbon sheet are complicated, which is not conducive to industrial production.

Method used

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  • Porous carbon piece, preparation method of porous carbon piece, and application of porous carbon piece in cigarette filter
  • Porous carbon piece, preparation method of porous carbon piece, and application of porous carbon piece in cigarette filter
  • Porous carbon piece, preparation method of porous carbon piece, and application of porous carbon piece in cigarette filter

Examples

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Effect test

Embodiment 1

[0024] A porous carbon sheet, the preparation method includes the following steps: put 10g of ferrocene and 200ml of methyl chloride into a stainless steel autoclave, bend the copper sheet and attach it to the inside of the autoclave, tighten the autoclave and place it in a high-temperature resistance furnace Internally heated directly at a rate of 10°C / min to 500°C, and maintained at this temperature for 50 minutes, after cooling to room temperature, the collected product was washed with distilled water and absolute ethanol in turn, and vacuum-dried at 50°C for 3 hours, that is Porous carbon sheets.

[0025] The typical scanning electron micrographs of the prepared porous carbon sheets are as follows: image 3 shown. It can be clearly seen from the figure that a large number of leaf-like two-dimensional porous carbon sheets appear. It can be seen that the two-dimensional carbon sheet is leaf-shaped, with a size of about 2 μm and a thickness of 150-180 nm, and the edge of th...

Embodiment 2

[0031] A porous carbon sheet, the preparation method includes the following steps: put 15g of ferrocene and 200ml of methyl chloride into a stainless steel autoclave, bend the copper sheet and attach it to the inside of the autoclave, tighten the autoclave and place it in a high-temperature resistance furnace Internally heated directly at a rate of 10°C / min to 600°C, and maintained at this temperature for 30 minutes. After cooling to room temperature, the collected product was washed with distilled water and absolute ethanol in turn, and vacuum-dried at 50°C for 4 hours. Porous carbon sheets.

Embodiment 3

[0033] A porous carbon sheet, the preparation method includes the following steps: put 12g of ferrocene and 200ml of methyl chloride into a stainless steel autoclave, bend the copper sheet and attach it to the inside of the autoclave, tighten the autoclave and place it in a high-temperature resistance furnace Internally heated directly at a rate of 10°C / min to 300°C, and maintained at this temperature for 80 minutes, after cooling to room temperature, the collected product was washed with distilled water and absolute ethanol in turn, and vacuum-dried at 50°C for 4 hours, that is Porous carbon sheets.

[0034] Application of porous carbon sheets in cigarette filters:

[0035] Add porous carbon sheet material to the filter (5mg-20mg) to make a new type of composite filter, such as Figure 6 as shown,

[0036] Adopt 10mg embodiment 1 porous carbon sheet to make such as Figure 6 The new composite cigarette filter shown can significantly reduce the main phenolic harmful compone...

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Abstract

The invention relates to a porous carbon piece, a preparation method of the carbon piece, and an application of the porous carbon piece in cigarette filters; dicyclopentadienyl iron and methyl chloride are added into a stainless steel high-pressure kettle to react at 300-600 DEG C for 30-90min, and then the porous carbon piece is obtained by cooling and washing; the prepared porous carbon piece is in the shape of a leaf with zigzag edge and can be used in cigarette filters. The preparation method is simple, is easy to control, suitable for industrial production and high in yield, and no rigorous reaction condition is needed, the prepared porous carbon piece is good in thermal stability, large in specific surface area and good in material absorbing performance; the harmful components such as phenols in the mainstream smoke are effectively reduced to more than 50%.

Description

technical field [0001] The invention relates to a porous carbon sheet material and its preparation method and application, especially the application in cigarettes, and belongs to the technical field of flue gas treatment and adsorption materials. Background technique [0002] Phenolic compounds are a common class of compounds in nature, and they can be found in water, fuel, vehicle exhaust, air, alcohol and cigarette smoke. There are more than 50 kinds of phenolic substances in cigarette smoke that have been reported, among which catechol, resorcinol, hydroquinone, phenol, o-cresol, m-cresol and p-cresol are the main components of cigarette smoke. The main phenolic substance has a strong stimulating effect and cancer-promoting effect on the skin and mucous membrane of the respiratory tract. [0003] Patent CN 101277912A discloses a porous carbon sheet, which is formed by bonding dispersed carbon short fibers with resin carbide, the micropore diameter of the micropores of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20B01J20/30B01D53/04A24D3/16A24D3/04
Inventor 于宏晓赵砚棠姜福东朱战营赵曰利
Owner CHINA TOBACCO SHANDONG IND