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Carbon nano composite and preparation method thereof

A technology for carbon nanomaterials and composite materials, applied in the field of carbon nanocomposite materials and their preparation, can solve the problems of cumbersome reaction steps, complex preparation process, low degree of functionalization, etc., and achieves shortened calcination time, simple preparation process, and decomposition products. single effect

Inactive Publication Date: 2013-05-01
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the precursors used in the above methods are complex organometallic complexes, the preparation process of the precursors is complicated, the use of organic reagents is harmful to the environment, and the pyrolysis process requires high temperature and long time
[0004] In addition, due to the extremely poor compatibility and dispersion of carbon nanotubes, they are prone to self-entanglement or agglomeration, which limits their practical applications.
For this reason, people modify the surface of carbon nanotubes through various methods such as direct fluorination reaction, acidification reaction, free radical reaction, electrochemical reaction, etc., but the above methods all have cumbersome reaction steps, long reaction cycle and high cost. , poor environmental performance, low degree of functionalization, great damage to the inherent structure of carbon nanotubes and unsuitable for mass production, etc.

Method used

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  • Carbon nano composite and preparation method thereof
  • Carbon nano composite and preparation method thereof
  • Carbon nano composite and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Step A: Weigh 11.64g of Co(NO 3 ) 2 ·6H 2 O and 7.5g of Al(NO 3 ) 3 ·9H 2 O was added to deionized water to prepare a 50ml mixed solution, 12.81g of sodium salicylate was weighed and dissolved in 100mL of deionized water, and 8g of NaOH was weighed into deionized water to prepare 100mL of a 2M alkaline solution. Under mechanical stirring, the mixed salt solution and NaOH solution were simultaneously added dropwise to the sodium salicylate solution. The pH of the solution was maintained at 7 during the dropping process, and the obtained slurry was transferred to an autoclave for crystallization at 100° C. for 24 hours. After the crystallization is completed, after the temperature drops to room temperature, it is washed with deionized water, centrifuged 4 times, and dried at 60°C for 12 hours to obtain a cobalt-aluminum hydrotalcite precursor intercalated with salicylate.

[0036] Step B: Weigh 1.5g of hydrotalcite precursor after grinding, spread it evenly on a porcelain boa...

Embodiment 2

[0039] Step A: Weigh 11.63g Ni(NO 3 ) 2 ·6H 2 O and 7.5g of Al(NO 3 ) 3 ·9H 2 O was added to deionized water to prepare a 50ml mixed solution, 12.81g of sodium salicylate was weighed and dissolved in 100mL of deionized water, and 8g of NaOH was weighed into deionized water to prepare 100mL of a 2M alkaline solution. Under mechanical stirring, the mixed salt solution and NaOH solution were simultaneously added dropwise to the sodium salicylate solution. The pH of the solution was maintained at 7 during the dropping process, and the obtained slurry was transferred to an autoclave for crystallization at 100° C. for 24 hours. After the crystallization is completed, after the temperature drops to room temperature, it is washed with deionized water, centrifuged 4 times, and dried at 60°C for 12 hours to obtain a salicylate intercalated nickel aluminum hydrotalcite precursor.

[0040] Step B: Weigh 1.5g of hydrotalcite precursor after grinding, spread it evenly on a porcelain boat and pl...

Embodiment 3

[0042] Step A: Weigh 11.64g of Co(NO 3 )2·6H 2 O and 7.5g of Al(NO 3 ) 3 ·9H 2 O was added to deionized water to prepare a 50ml mixed solution, 12.81g of sodium salicylate was weighed and dissolved in 100mL of deionized water, and 8g of NaOH was weighed into deionized water to prepare 100mL of a 2M alkaline solution. Under mechanical stirring, the mixed salt solution and NaOH solution were simultaneously added dropwise to the sodium salicylate solution. The pH of the solution was maintained at 7 during the dropping process, and the obtained slurry was transferred to an autoclave for crystallization at 100° C. for 24 hours. After the crystallization is completed, after the temperature drops to room temperature, it is washed with deionized water, centrifuged 4 times, and dried at 60°C for 12 hours to obtain a cobalt-aluminum hydrotalcite precursor intercalated with salicylate.

[0043] Step B: Weigh 1.5g of hydrotalcite precursor after grinding, spread it evenly on a porcelain boat ...

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Abstract

The invention relates to a carbon nano composite and a preparation method thereof. The carbon nano composite comprises a carbon nano material and metal particles, wherein the carbon nano material is subjected to surface functionalization, and the metal particles are formed on the carbon nano material. The carbon nano composite can be used for removing pollutants in waste water, and a removal effect is significantly better than that of the existing nano material.

Description

Technical field [0001] The invention relates to a carbon nano composite material and a preparation method thereof. Background technique [0002] Carbon nanomaterials are widely used in many fields such as electrodes, energy storage, catalyst carriers, filtration devices, etc. because of their unique structure and excellent electrical, optical, thermodynamic and mechanical properties. When the carbon material is compounded with metal or metal oxide, it can be used as a magnetic material, catalyst and chemical sensor. [0003] The current methods for preparing carbon nanomaterials mainly include arc discharge, laser sputtering, and chemical vapor deposition. Among them, the arc discharge method and laser sputtering method are expensive in equipment, high energy consumption, and many product impurities, which limit their application in industrial production. The chemical vapor deposition method needs to use reducing gas in the process of preparing carbon nanotubes. The catalyst is r...

Claims

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Application Information

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IPC IPC(8): C01B31/02B82Y30/00C01B32/15
Inventor 王连英杨双霞何静
Owner BEIJING UNIV OF CHEM TECH
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