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Multi-walled carbon nanotube functionalized graphene composite material and application thereof

A technology of multi-walled carbon nanotubes and composite materials is applied to the multi-walled carbon nanotube functionalized graphene composite materials. The application field of the composite materials can shorten the pretreatment time, make up for the decrease in electrical conductivity, and reduce the detection cost.

Active Publication Date: 2015-04-22
甘肃中商食品质量检验检测有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, carbon nanotubes and graphene composites exhibit more excellent thermal conductivity and electron transport properties, although the composites have these advantages in some fields, improving their biocompatibility, stability, dispersibility and catalytic Activity remains a challenge

Method used

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  • Multi-walled carbon nanotube functionalized graphene composite material and application thereof
  • Multi-walled carbon nanotube functionalized graphene composite material and application thereof
  • Multi-walled carbon nanotube functionalized graphene composite material and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0045] According to the ratio of adding 50 mg multi-walled carbon nanotubes to 100 mL double-distilled water, add multi-walled carbon nanotubes into double-distilled water for 30 minutes to prepare a multi-walled carbon nanotube dispersion; according to the volume ratio of 3:1, take Concentrated sulfuric acid and nitric acid were prepared into mixed acid; according to the volume ratio of 5:2, the multi-walled carbon nanotube dispersion and mixed acid were taken respectively, mixed evenly, refluxed at 65°C for 6h, centrifuged, washed with twice distilled water for three times, 40°C vacuum drying to obtain purified multi-walled carbon nanotubes; according to the ratio of adding 4g graphite powder, 2g sodium nitrate, 9mL secondary distilled water and 12g potassium permanganate to 100mL concentrated sulfuric acid, take concentrated sulfuric acid, graphite powder, sodium nitrate, di sub-distilled water and potassium permanganate; add graphite powder into concentrated sulfuric acid, ...

Embodiment 2

[0047] According to the ratio of adding 50 mg multi-walled carbon nanotubes to 100 mL double-distilled water, add multi-walled carbon nanotubes into double-distilled water, and ultrasonically for 30 minutes to prepare a multi-walled carbon nanotube dispersion; according to the volume ratio of 3:1, respectively Take concentrated sulfuric acid and nitric acid to prepare mixed acid; according to the volume ratio of 5:2, take the multi-walled carbon nanotube dispersion and mixed acid respectively, mix evenly, reflux at 75°C for 6 hours, centrifuge, wash the solid matter with twice distilled water three times, 40 ℃ vacuum drying to obtain purified multi-walled carbon nanotubes; according to the ratio of adding 5g graphite powder, 2.5g sodium nitrate, 92mL double distilled water and 20g potassium permanganate to 100mL concentrated sulfuric acid, take concentrated sulfuric acid, graphite powder and sodium nitrate respectively , twice distilled water and potassium permanganate; add gra...

Embodiment 3

[0049] According to the ratio of adding 50 mg multi-walled carbon nanotubes to 100 mL double-distilled water, add multi-walled carbon nanotubes into double-distilled water, and ultrasonically for 30 minutes to prepare a multi-walled carbon nanotube dispersion; according to the volume ratio of 3:1, respectively Take concentrated sulfuric acid and nitric acid to prepare a mixed acid; according to the volume ratio of 5:2, take the multi-walled carbon nanotube dispersion and the mixed acid respectively, mix them evenly, reflux at 70°C for 6 hours, centrifuge, wash the solid matter with twice distilled water three times, 40 ℃ vacuum drying to obtain purified multi-walled carbon nanotubes; according to the ratio of adding 4.5g graphite powder, 2.25g sodium nitrate, 92mL double distilled water and 15.75g potassium permanganate to 100 mL concentrated sulfuric acid, take concentrated sulfuric acid and graphite powder respectively , sodium nitrate, twice distilled water and potassium per...

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Abstract

The invention provides a multi-walled carbon nanotube functionalized graphene composite material and application thereof. The multi-walled carbon nanotube functionalized graphene composite material is prepared through the following steps: preparing a multi-walled carbon nanotube dispersion and mixed acid and carrying out reflux reaction and centrifugal drying so as to obtain a purified multi-walled carbon nanotube; preparing graphene oxide from graphite powder, sodium nitrate, secondary distilled water and potassium permanganate; preparing a graphene oxide dispersion, adjusting the pH value of the dispersion and adding hydrazine hydrate and ammonia water so as to obtain reduced graphene oxide; preparing a reduced graphene oxide dispersion, adding a sodium 1,3,6,8-pyrenetetrasulfonate solution so as to obtain functionalized grapheme; preparing a graphene suspension and mixing the graphene suspension with the sodium 1,3,6,8-pyrenetetrasulfonate solution so as to obtain a reaction solution; and adding the purified multi-walled carbon nanotube dispersion and successively carrying out stirring, centrifugation, washing and vacuum drying so as to prepare the multi-walled carbon nanotube functionalized graphene composite material. The composite material is used as an adsorbent for detection of beta-2 receptor agonists in fresh meat and products thereof and can greatly shorten processing time before detection and reduce detection cost.

Description

Technical field [0001] The present invention is the field of carbon nanomaterials, involving a multi -wall carbon nanot barrel function puppet graphene composite material; the present invention also involves an application of this composite material. Background technique [0002] Some new carbon nanomaterials, such as one -dimensional carbon nanotimal tube with superior thermal conductivity, electrical conductivity and strong mechanical properties, and graphene composite materials with two -dimensional structures, have been applied to nano -electronics, nanochemical, catalytic, biological, biological, biologySensor, environmental monitoring, medicine and many other fields.It has attracted widespread attention.Hydividity with high surface on the surface of carbon nanoma makes it strong adsorption of some hydrophobic organic pollutants, especially with π electronic compounds to interact with some carbon nanoma materialsVery suitable for the treatment of organic pollutants.In additi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20G01N27/26
CPCB01J20/205G01N27/26
Inventor 钱滢文洪霞袁彩霞周鑫魁何海宁冯玉升王懂帅高志莹李蕊岑汪永松杨震刘琦熊敏晖尚欣春王燕姣张志龙
Owner 甘肃中商食品质量检验检测有限公司