Preparation method, desorption method and applications of carbon nano-tube/polyaniline composite adsorption material with characteristic of easy lightweight separation

A composite adsorption material, carbon nanotube technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve the problems of difficult separation of adsorption materials, high cost, low cost, reduced density, preparation simple craftsmanship

Inactive Publication Date: 2015-12-09
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0003] In order to solve the problems of difficult separation and high cost of the existing adsorption materials, the present invention provides a preparation method of a light-weight and easy-

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  • Preparation method, desorption method and applications of carbon nano-tube/polyaniline composite adsorption material with characteristic of easy lightweight separation
  • Preparation method, desorption method and applications of carbon nano-tube/polyaniline composite adsorption material with characteristic of easy lightweight separation

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specific Embodiment approach 1

[0023] Specific Embodiment 1: The preparation method of the lightweight and easy-to-separate carbon nanotube / polyaniline composite adsorption material provided in this embodiment is carried out according to the following steps:

[0024] 1. Prepare a sodium hydroxide solution with a concentration of 0.3~0.8mol / L, disperse the hollow glass microspheres in the sodium hydroxide solution, and treat them for 0.5~2.5h under stirring conditions, and wash the treated hollow glass microspheres with distilled water until neutral.

[0025] 2. Weigh polydiallyldimethylammonium chloride, sodium chloride and distilled water according to the ratio of 0.3~0.6g:20~30g:500mL Sodium and distilled water and polydiallyl dimethyl ammonium chloride, sodium chloride dissolved in water to obtain a sodium chloride solution of polydiallyl dimethyl ammonium chloride. Disperse the hollow glass microspheres treated in step 1 in distilled water, and add the above polydiallyl dimethyl ammonium chloride solut...

specific Embodiment approach 2

[0043] Specific embodiment two: the preparation method of the light and easily separable carbon nanotube / polyaniline composite adsorption material provided by the present embodiment is carried out according to the following steps:

[0044] 1. Prepare a sodium hydroxide solution with a concentration of 0.5 mol / L, disperse the hollow glass microspheres in the sodium hydroxide solution, and treat for 2 hours under stirring conditions, and wash the treated hollow glass microspheres with distilled water until neutral.

[0045] 2. Weigh polydiallyldimethylammonium chloride, sodium chloride, and distilled water according to the ratio of polydiallyldimethylammonium chloride, sodium chloride, and distilled water to 0.5g:29.2g:500mL And dissolving polydiallyl dimethyl ammonium chloride and sodium chloride in water to obtain a sodium chloride solution of polydiallyl dimethyl ammonium chloride. Disperse the hollow glass microspheres treated in step 1 in distilled water, and add the above ...

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Abstract

The present invention discloses a preparation method, a desorption method and applications of a carbon nano-tube/polyaniline lightweight composite adsorption material with a characteristic of easy lightweight separation. According to the preparation method, hollow glass microspheres are adopted as a carrier, a layer-by-layer self-assembly method is used to make carbon nano-tubes and the hollow glass microspheres be compounded, and then aniline is coated outside the carbon nano-tube and hollow glass microsphere complex in an in-situ polymerization manner so as to obtain the carbon nano-tube/polyaniline composite adsorbent having the closed cavity structure. According to the present invention, the carbon nano-tube/polyaniline composite adsorbent has characteristics of good dispersity, agglomeration resistance, light weight, easy separation and regeneration, and provides a good adsorption effect on heavy metal ions and organic dyes, the preparation process is low, the cost is low, and the adsorption rate of the carbon nano-tube/polyaniline composite adsorbent on the methyl blue dye with the concentration of 10-200 mg/L is 30-90%.

Description

technical field [0001] The invention relates to a preparation method of an adsorbent, a desorption method and application thereof, in particular to a preparation method of a carbon nanotube / polyaniline composite adsorption material, a desorption method and application thereof. Background technique [0002] The use of adsorbents to remove heavy metal ions and organic dyes in industrial wastewater has been widely studied, but traditional adsorbents have problems such as high price or difficult separation, which limit their wide application. Polyaniline adsorption material can effectively adsorb metal ions and organic substances in wastewater, and has been developed rapidly because of its good solvent resistance and high desorption rate. Contents of the invention [0003] In order to solve the problems of difficult separation and high cost of the existing adsorption materials, the present invention provides a preparation method of a light-weight and easy-separation carbon nan...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30C02F1/28C02F1/58C02F1/62
Inventor 徐慧芳王硕杨敏苑成策姜警李振奋
Owner HARBIN INST OF TECH
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