Polyaniline/carbon nano tube adsorbent having multi-layer porous structure and preparation method thereof

A carbon nanotube and polyaniline technology, applied in the fields of nanocomposite materials and environmental protection, can solve the problems of large aspect ratio of carbon nanotubes, inability to uniformly disperse and agglomerate, easy to curl and entangle, and improve adsorption efficiency and adsorption capacity. , The effect of good adsorption performance and high adsorption characteristics

Inactive Publication Date: 2012-05-30
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to propose a polyaniline / carbon nanotube adsorbent with a multi-layered pore structure and a preparation method thereof, so as to solve the problems in the prior art that the carbon nanotubes cannot be easily curled and entangled due to their large aspect ratio. The problem of uniform dispersion and agglomeration in the matrix

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  • Polyaniline/carbon nano tube adsorbent having multi-layer porous structure and preparation method thereof

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Effect test

Embodiment 1

[0027] First, 0.34g of carbon nanotubes (in this embodiment, the carbon nanotubes have a diameter of 5-200 nanometers, a length of 0.1-100 microns, and a specific surface area of ​​30-300m 2 / g, carbon nanotubes that are prone to curling and entanglement) and 6.8g oxidant ammonium persulfate were dissolved in 100ml distilled water. Ultrasonic dispersion was placed in an ultrasonic generator for 2 h, and then cooled to room temperature. At the same time, 2.27ml of aniline monomer (analytically pure, with a purity greater than 99.8wt%) was dissolved in 100ml of organic solvent n-hexane. Then the n-hexane solution of aniline is firstly transferred into the reaction flask, and the ammonium persulfate solution containing carbon nanotubes is transferred into the reaction cup. At this time, the organic phase and the aqueous phase form an interface. Emerald green polyaniline is formed at the interface in an instant, and gradually diffuses into the water phase, wrapping on the surfac...

Embodiment 2

[0032] First, 0.23g of carbon nanotubes (in this embodiment, the carbon nanotubes have a diameter of 5-200 nanometers, a length of 0.1-100 microns, and a specific surface area of ​​30-300m 2 / g, carbon nanotubes that are prone to curling and entanglement) and 5.7g oxidant ammonium persulfate were dissolved in 50ml distilled water. Ultrasonic dispersion was placed in an ultrasonic generator for 2 h, and then cooled to room temperature. At the same time, 2.27ml of aniline monomer (analytically pure, with a purity greater than 99.8wt%) was dissolved in 50ml of organic solvent carbon tetrachloride. Then the carbon tetrachloride solution of aniline was first moved into the reaction bottle, and the ammonium persulfate solution containing carbon nanotubes was moved into the reaction cup. At this time, the organic phase and the aqueous phase form an interface. Emerald green polyaniline is formed at the interface in an instant, and gradually diffuses into the water phase, wrapping on ...

Embodiment 3

[0036] First, 0.12g of carbon nanotubes (in this embodiment, the carbon nanotubes have a diameter of 5-200 nanometers, a length of 0.1-100 microns, and a specific surface area of ​​30-300m 2 / g, carbon nanotubes that are prone to curling and entanglement) and 4.5g oxidant ammonium persulfate were dissolved in 30ml distilled water. Ultrasonic dispersion was placed in an ultrasonic generator for 2 h, and then cooled to room temperature. At the same time, 2.27ml of aniline monomer (analytically pure, with a purity greater than 99.8wt%) was dissolved in 30ml of organic solvent xylene. Then the xylene solution of aniline is firstly transferred into the reaction flask, and the ammonium persulfate solution containing carbon nanotubes is transferred into the reaction cup. At this time, the organic phase and the aqueous phase form an interface. Emerald green polyaniline is formed at the interface in an instant, and gradually diffuses into the water phase, wrapping on the surface of c...

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Abstract

The invention relates to a polyaniline / carbon nano tube adsorbent having multi-layer porous structure and a preparation method thereof, which belong to the technical field of novel nano materials and environmental protection and aim to improve adsorption capacity of polymer polyaniline to organic dye in water. According to characteristics that the specific surface area of the carbon nano tubes is large, the length-diameter ratio thereof is high and the carbon nano tubes are easy to twine to stack to form a porous structure, the carbon nano tubes are used as supporting frames, and polyaniline is prepared by the static interface polymerization process, and then covers the surfaces of the carbon nano tubes so as to form a porous polyaniline / carbon nano tube compound material. Since the polyaniline / carbon nano tube compound material has the multi-layer porous structure and the large specific surface area, adsorption efficiency and capacity of polyaniline to organic dye are improved effectively. In addition, the polyaniline / carbon nano tube adsorbent can be prepared by simple processes under conditions easy to be controlled, has high adsorption performance and excellent environment-friendly property, and can be applied to the fields of industrial dye waste water treatment and the like.

Description

technical field [0001] The invention relates to a polyaniline / carbon nanotube adsorbent with a multi-layered pore structure and a preparation method thereof, specifically a polyaniline / carbon nanotube composite material for adsorbing organic dyes in wastewater and a preparation method thereof, belonging to nano The technical field of composite materials and environmental protection. Background technique [0002] With the rapid development of industrial production, the amount of dyes required by many industries continues to increase, and at the same time, more and more dyes are discharged into the water, resulting in deteriorating water quality. higher requirement. Sorbent adsorption method is an effective method with small equipment investment, simple operation, and widely used to remove dyes in sewage. Its basic principle is to use the adsorbent itself to interact strongly with organic dyes in sewage to generate adsorption. . At present, commonly used adsorbents include ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/28
Inventor 曾尤吴文栋卢桂霞赵丽佳甄影佟钰
Owner SHENYANG JIANZHU UNIVERSITY
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