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Preparation method for efficient oil absorption carbon aerogel material

A carbon aerogel, aerogel technology, applied in chemical instruments and methods, colloidal chemistry, colloidal chemistry, etc., can solve the problems of uneven dispersion of carbon nanotubes, complicated synthesis process, high toxicity of reagents, etc., and achieve good adsorption. properties and mechanical strength, a wide range of raw material sources, the effect of low density

Active Publication Date: 2015-10-28
四川旭航新材料有限公司
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Problems solved by technology

[0004] The object of the present invention is to provide a kind of preparation method of high-efficiency oil-absorbing carbon airgel material, aim at solving the uneven dispersion of carbon nanotubes existing in the preparation of three-dimensional graphene-carbon nanotube composite materials, the synthesis process is cumbersome, and the price is expensive. The problem of the high toxicity of the reagents used

Method used

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  • Preparation method for efficient oil absorption carbon aerogel material
  • Preparation method for efficient oil absorption carbon aerogel material
  • Preparation method for efficient oil absorption carbon aerogel material

Examples

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Effect test

Embodiment 1

[0044] Step (a): 1 weight part of graphene oxide is dispersed in 10 weight parts of water, stirred for 3 hours to form a graphene oxide dispersion;

[0045] Step (b): dispersing 1 weight part of carbon nanotubes and 0.01 weight part of polyvinylpyrrolidone in 10 weight parts of ethanol, ultrasonicating for 5 hours to form a carbon nanotube dispersion;

[0046] Step (c): slowly adding the carbon nanotube dispersion to the stirred graphene oxide dispersion, and continuing to stir for 1 hour to form a graphene oxide-carbon nanotube dispersion;

[0047] Step (d): Take 10 ml of the dispersion in step (c), add 200 μl of ethylenediamine, stir for 10 minutes, put it into a reaction kettle at 120 ° C, and react for 12 hours to obtain a graphene-carbon nanotube hydrogel;

[0048] Step (e): wash the hydrogel in step (d) with ultrapure water for 10 times, freeze and shape at -70°C, and freeze-dry to obtain the carbon airgel material.

Embodiment 2

[0050] Step (a): 1 weight part of graphene oxide is dispersed in 4 weight parts of water, stirred for 3 hours to form a graphene oxide dispersion;

[0051] Step (b): dispersing 1 weight part of carbon nanotubes and 0.01 weight part of polyvinylpyrrolidone in 4 weight parts of ethanol, and ultrasonicating for 5 hours to form a carbon nanotube dispersion;

[0052] Step (c): slowly adding the carbon nanotube dispersion to the stirred graphene oxide dispersion, and continuing to stir for 1 hour to form a graphene oxide-carbon nanotube dispersion;

[0053] Step (d): Take 10 ml of the dispersion in step (c), add 200 μl of ethylenediamine, stir for 10 minutes, put it into a reaction kettle at 120 ° C, and react for 12 hours to obtain a graphene-carbon nanotube hydrogel;

[0054] Step (e): washing the hydrogel in step (d) with ultrapure water for 10 times, freezing and forming at -70°C, and freeze-drying to obtain a carbon airgel material;

[0055] Step (f): annealing the graphene-ca...

Embodiment 3

[0057] Step (a): dispersing 1 weight part of graphene oxide in 5 weight parts of water, stirring for 3 hours to form a graphene oxide dispersion;

[0058] Step (b): dispersing 1 weight part of carbon nanotubes and 0.01 weight part of polyvinylpyrrolidone in 10 weight parts of ethanol, ultrasonicating for 5 hours to form a carbon nanotube dispersion;

[0059] Step (c): slowly adding the carbon nanotube dispersion to the stirred graphene oxide dispersion, and continuing to stir for 1 hour to form a graphene oxide-carbon nanotube dispersion;

[0060] Step (d): Take 10 ml of the dispersion in step (c), add 200 μl of ammonia water, stir for 10 minutes, put it in a reaction kettle at 90 ° C, and react for 24 hours to obtain a graphene-carbon nanotube hydrogel;

[0061] Step (e): washing the hydrogel in step (d) with ultrapure water for 10 times, freeze-forming at -70° C., and freeze-drying to obtain a carbon gel material.

[0062] figure 2 It is the SEM electron micrograph of the...

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Abstract

The invention discloses a preparation method for an efficient oil absorption carbon aerogel material. The preparation method comprises the steps that firstly 1 part by weight of carbon nano tubes and 0.01 part of a surface active agent are dispersed into 4-10 parts of ethyl alcohol to obtain carbon nano tube dispersion liquid; next, the carbon nano tube dispersion liquid is slowly added into stirring graphene oxide dispersion liquid to form graphene oxide-carbon nano tube dispersion liquid; then reduction is conducted on the graphene oxide-carbon nano tube dispersion liquid by the adoption of a chemical hydrothermal reduction method to obtain graphene oxide-carbon nano tube hydrogel; finally, freeze drying is conducted on the hydrogel to obtain aerogel. According to the preparation method for the efficient oil absorption carbon aerogel material, firstly, the carbon nano tubes are dispersed into the dispersion liquid containing the ethyl alcohol and the surface active agent, then self-assembly is conducted with the high-dispersibility graphene oxide, the technology is simple, the obtain three-dimensional graphene oxide-carbon nano tube effectively combines advantages of the graphene oxide with advantages of the carbon nano tubes, good adsorption performance and mechanical strength are achieved, and the wide application prospect in the field of oil and gas fields is achieved.

Description

technical field [0001] The invention belongs to the technical field of functional materials for oil and gas fields, and in particular relates to a preparation method of a high-efficiency oil-absorbing carbon airgel material. Background technique [0002] With the rapid development of economy and society, people's demand for petroleum and petroleum products has increased dramatically. There are different degrees of leakage accidents in every link of oil exploitation, refining, transportation, storage and use. Crude oil spills not only pollute oceans and freshwater systems and destroy the ecological environment, but also ultimately threaten human health through the biological chain. The traditional treatment method has low adsorption efficiency, easy to produce secondary pollution, low recyclability and high treatment cost, which can no longer meet the rapid and effective treatment of some emergency oil spill accidents. Treatment with oil-absorbing materials is one of the mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/00B01J20/20B01J20/30
Inventor 周莹万文超张瑞阳张骞刘昊林元华
Owner 四川旭航新材料有限公司
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