Preparation method of carbon/carbon nano tube composite foam adsorption material

A carbon nanotube composite and foam adsorption technology, applied in the field of materials, can solve problems such as harmfulness and the difficulty of absorbents to meet requirements, and achieve the effects of short experimental period and simple and reliable preparation method.

Inactive Publication Date: 2015-09-02
YANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many traces of heavy metal elements or organic substances in water that are very harmful to the human body. Conventional absorbents are difficult to meet the requirements. The excellent adsorption capacity of carbon nanotubes provides a new prospect for this field

Method used

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  • Preparation method of carbon/carbon nano tube composite foam adsorption material
  • Preparation method of carbon/carbon nano tube composite foam adsorption material
  • Preparation method of carbon/carbon nano tube composite foam adsorption material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Disperse 0.5g of purchased acidified carbon nanotubes into 25g of a mixed solvent of ethanol and water with a volume ratio of 1:3, and disperse for 10 minutes under ultrasonic conditions with a power of 400W to obtain a carbon nanotube mixture. The concentration of carbon nanotubes in the carbon nanotube mixture liquid is 2wt%.

[0028] (2) Weigh 10g of phenolic resin and 1g of curing agent hexamethylenetetramine and mix them with 40g of ethanol solvent, and form a 20wt% mixture of phenolic resin after 30 minutes under ultrasonic conditions with a power of 400W.

[0029] (3) Cut and weigh 1g of a polyurethane foam template with a thickness of 4mm, and repeatedly and evenly absorb the above two mixed solutions: first absorb the carbon nanotube mixed solution, then dry it at 60°C, and then absorb the phenolic resin mixed solution, Repeat 3 to 5 times, and ensure that the last time is to absorb the phenolic resin mixture until the template is cross-linked and solidifie...

Embodiment 2

[0034] (1) Disperse 1.35g of purchased acidified carbon nanotubes into 25g of a mixed solvent of ethanol and water with a volume ratio of 1:2, and disperse for 10 minutes under ultrasonic conditions with a power of 400W to obtain a carbon nanotube mixture. The concentration of carbon nanotubes in the carbon nanotube mixture liquid is 5wt%.

[0035] (2) Weigh 20g of phenolic resin and 2g of curing agent hexamethylenetetramine and mix with 46g of ethanol solvent, and form a 30wt% mixture of phenolic resin after 30 minutes under ultrasonic conditions with a power of 400W.

[0036] (3) Cut and weigh 2.7g of a polyurethane foam template with a thickness of 4mm, and repeatedly and evenly absorb the above two mixed solutions: first absorb the carbon nanotube mixed solution, then dry it at 60°C, and then absorb the phenolic resin mixed solution , repeated 4 times, and ensured that the last time was to absorb the phenolic resin mixture until the template was cross-linked and solidified...

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Abstract

The invention provides a preparation method of a carbon / carbon nano tube composite foam adsorption material and relates to the technical field of environments. A three-dimensional macro-porous carbon nano tube / active carbon composite foam material is prepared by using a polymer foam template through a carbon nano tube dispersion solution, a phenolic resin solution deposition and carbonization and activation. The used materials are environmentally friendly, the preparation method is simple and the structure is relatively firm; and the material has functions of macro-pores and mesopores; the macro-pores are good for the circulation of a water body and the mesopores are good for adsorption, so that the material is hopeful to be a novel green water treatment material capable of efficiently adsorbing organic matters of the water body.

Description

technical field [0001] The invention belongs to the technical field of environment and relates to the technical field of preparation of materials, especially water body pollutant adsorption materials. Background technique [0002] The developed pore structure, large specific surface area, and high specific surface energy of carbon nanotubes determine its excellent adsorption and desorption capabilities. It is a new type of nano-adsorbent with superior adsorption performance, and can be recycled through desorption , so it has a great application prospect in the future urban sewage and wastewater treatment, especially in the treatment of industrial wastewater containing heavy metal ions. There are many traces of heavy metal elements or organic substances in water that are very harmful to the human body. Conventional absorbents are difficult to meet the requirements. The excellent adsorption capacity of carbon nanotubes provides a new prospect for this field. The excel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/30B01J20/26C02F1/28C02F1/62
Inventor 纪立军朱建
Owner YANGZHOU UNIV
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