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Carbon nannotube adsorption component as well as preparation method and application of carbon nannotube adsorption component

A technology of carbon nanotubes and carbon nanotube arrays, which is applied in the field of carbon nanotube adsorption components and preparation, can solve the problems of carbon nanotube loss and adsorption performance degradation, and achieve high space utilization, equipment cost reduction, and convenient replacement Effect

Active Publication Date: 2018-07-10
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, long-term fluid scouring will lead to the loss of carbon nanotubes and the decline in adsorption performance

Method used

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  • Carbon nannotube adsorption component as well as preparation method and application of carbon nannotube adsorption component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] One side of the copper wire mesh belt is sprayed with a nickel-based catalyst capable of growing carbon nanotubes, and after heat treatment, it is placed in a reactor. At a temperature of 320° C. and a pressure of 0.1 MPa, nitrogen gas of 160 ppm xylene was passed through, and the reaction time was 60 minutes. After the carbon-containing process gas is cracked, a dense carbon nanotube array layer is formed on one side of the wire mesh; after the reaction is stopped, the copper mesh belt with the carbon nanotube array layer is taken out. The structural members with two layers of carbon nanotube array layers facing inward are inter-inserted to form a strip structure in which the side of the copper wire mesh belt without carbon nanotubes deposited is separated from the other side deposited with carbon nanotubes. After the belt-like structure is bound and fixed, it is packed with filter cloth on the outside for future use.

[0031] According to the inner diameter of the cy...

Embodiment 2

[0034] One side of the copper wire mesh is sprayed with a nickel-based catalyst that can grow carbon nanotubes, and after heat treatment, it is placed in the reactor. At a temperature of 500° C., a pressure of 1 MPa, and hydrogen containing 20% ​​methane, the reaction time is 4 hours. After the carbon-containing process gas is cracked, a dense carbon nanotube array layer is formed on one side of the copper mesh belt; after the reaction is stopped, the copper mesh belt with the carbon nanotube array layer is taken out. Three copper wire mesh belts with carbon nanotube array layers are stacked to form a belt structure in which the side of the copper mesh belt without carbon nanotubes is deposited and the other side with carbon nanotubes is deposited at intervals. After the belt-like structure is bound and fixed, it is packed with filter cloth on the outside for future use.

[0035] According to the inner diameter of the cylindrical container of the adsorption device, tightly co...

Embodiment 3

[0038] One side of the stainless steel wire mesh belt is sprayed with a cobalt-based catalyst capable of growing carbon nanotubes, and placed in a reactor after heat treatment. A mixed gas containing 6% CO and 30% isopropanol is introduced, the temperature is 400° C., the pressure is 0.5 MPa, and the reaction time is 2 hours. After the carbon-containing process gas is cracked, a dense carbon nanotube array layer is formed on one side of the wire mesh belt; after the reaction is stopped, the stainless steel wire mesh belt with the carbon nanotube array layer is taken out. Four stainless steel wire mesh belts with carbon nanotube array layers are stacked to form a belt structure in which one side of the stainless steel mesh belt without carbon nanotubes is deposited and the other side with carbon nanotubes is deposited at intervals. After the belt-like structure is bound and fixed, it is packed with filter cloth on the outside for future use.

[0039] According to the inner dia...

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Abstract

The invention discloses a carbon nannotube adsorption component as well as a preparation method and application of the carbon nannotube adsorption component. Carbon nanotubes of the carbon nannotube adsorption component grow at one side of each metal wire mesh belt, a strip-shaped structure is formed at the side by arranging the sides, not provided with carbon, of the metal wire mesh belts at intervals; upper and lower outer layers of the strip-shaped structure are packaged by using filter cloth, and the whole strip-shaped structure is strip-shaped and can be wound; when being wound to form acylindrical structure, the strip-shaped structure has the height-to-diameter ratio of 1:1 to 1:5; and a carbon nannotube adsorption device applying the carbon nannotube adsorption component is internally filled with the carbon nannotube adsorption component, the void ratio of a bed layer of the component is 70-95%, and no gas or liquid distribution devices are arranged in the device. The inventionfurther discloses a preparation method of the carbon nannotube adsorption component and a mounting method of the carbon nannotube adsorption device; it is not needed that the carbon nannotube adsorption device is additionally provided with an independent gas or liquid distribution device, and the carbon nannotube adsorption device can be used for adsorbing and rapidly desorbing organic matters inwastewater or gases; and the carbon nannotube adsorption component has the advantages such as firm structure, long service life, high throughput, low preparation cost and low treatment energy consumption.

Description

technical field [0001] The invention belongs to the technical field of carbon nanomaterials, and in particular relates to a carbon nanotube adsorption component, a preparation method and an application. Background technique [0002] Carbon nanotube is a new type of nanomaterial with large specific surface area, good chemical stability and non-polar surface. It can effectively adsorb non-polar organic substances in gas or liquid, and the weight of adsorbed organic substances can be 10-10% of its own weight. 100 times, showing better performance than traditional activated carbon materials. In addition, it is also possible to adsorb non-polar organic substances in water based on the principle of polarity and non-polarity, such as reports on the use of carbon nanotubes to adsorb gasoline, diesel or phenol in water. [0003] However, carbon nanotubes adsorb a large amount of organic matter, which is not suitable for wastewater and waste gas with low concentration of organic matt...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01D53/02C02F1/28C01B32/162C02F101/38
CPCB01D53/02B01D2253/102B01J20/205C02F1/283C02F2101/38
Inventor 骞伟中多尼杨周飞杨逸风尹泽芳
Owner TSINGHUA UNIV
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