Polypyrrole modified magnetic kaolin nano composite material as well as preparation method and application thereof

A nanocomposite material, kaolin technology, applied in the field of polypyrrole modified magnetic kaolin nanocomposite material and its preparation, can solve the problems of low adsorption efficiency, limited material development space, weak adsorption performance, etc.

Pending Publication Date: 2020-07-10
SUZHOU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional adsorption materials such as activated carbon, silica gel, polyacrylamide, magnetic kaolin, etc., have low adsorption efficiency for some heavy metals, which limits the development space of such materials
[0004] "Huang Ming. Preparation of Magnetic Kaolin a

Method used

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  • Polypyrrole modified magnetic kaolin nano composite material as well as preparation method and application thereof
  • Polypyrrole modified magnetic kaolin nano composite material as well as preparation method and application thereof
  • Polypyrrole modified magnetic kaolin nano composite material as well as preparation method and application thereof

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preparation example Construction

[0026] The invention provides a method for preparing a polypyrrole modified magnetic kaolin nanocomposite material, comprising the following steps:

[0027] mixing the first ferric chloride, sodium acetate, kaolin, polyether polyol and ethylene glycol, and performing a hydrothermal reaction to obtain magnetic kaolin;

[0028] The magnetic kaolin, sodium dodecylbenzene sulfonate, water, pyrrole and second ferric chloride are mixed, and after polymerization reaction, washing and drying are carried out in sequence to obtain the polypyrrole modified magnetic kaolin nanocomposite material.

[0029] In the present invention, unless otherwise specified, the raw materials used are conventional commercial products in the field or prepared by conventional methods in the field.

[0030] The invention mixes the first ferric chloride, sodium acetate, kaolin, polyether polyalcohol and ethylene glycol, and carries out hydrothermal reaction to obtain magnetic kaolin.

[0031] In the present ...

Embodiment 1

[0059] (1) Dissolve 3g of ferric chloride hexahydrate and 2g of sodium acetate in 100mL of ethylene glycol and stir until uniform to obtain the first mixed solution; 2g of kaolin and 2g of polyethylene glycol are added to the mixed solution and ultrasonicated for 2 hours. Move it to a reaction kettle for 6 hours at 150°C, wash the obtained product and dry it at 60°C to obtain magnetic kaolin powder;

[0060] (2) Dissolve 0.15 g of magnetic kaolin powder and 0.025 g of sodium dodecylbenzenesulfonate in 50 mL of pure water, ultrasonicate for 30 min and mechanically stir for 30 min, then add 0.25 mL of pyrrole to obtain a second mixed solution.

[0061] (3) Weigh 3g of ferric chloride hexahydrate and dissolve it in 10mL of pure water, sonicate until it is completely dissolved, slowly add it dropwise into the second mixed solution at a dropping rate of 1mL / s, and continue to react with mechanical stirring for 4h. Washing, drying at 60°C, the product polypyrrole modified magnetic k...

Embodiment 2

[0067] (1) Dissolve 6g of ferric chloride hexahydrate and 5g of sodium acetate in 150mL of ethylene glycol and stir until uniform to obtain the first mixed solution; 3g of kaolin and 3g of polypropylene glycol are added to the mixed solution, ultrasonicated for 2h, and transferred to React in a reaction kettle at 200°C for 6h, wash the obtained product and dry at 50°C to obtain magnetic kaolin powder;

[0068] (2) Dissolve 0.15 g of magnetic kaolin powder and 0.035 g of sodium dodecylbenzenesulfonate in 100 mL of pure water, ultrasonicate for 30 min and mechanically stir for 30 min, then add 0.5 mL of pyrrole to obtain a second mixed solution.

[0069] (3) Weigh 6g of ferric chloride hexahydrate and dissolve it in 25mL of pure water, sonicate until it is completely dissolved, slowly add it dropwise into the second mixed solution at a dropping rate of 1mL / s, and continue to react with mechanical stirring for 6h. Wash and dry at 50°C to obtain the product polypyrrole modified ma...

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Abstract

The invention provides a polypyrrole modified magnetic kaolin nano composite material as well as a preparation method and application thereof, and belongs to the technical field of magnetic nano composite materials. The preparation method provided by the invention comprises the following steps: mixing first ferric chloride, sodium acetate, kaolin, polyether polyol and ethylene glycol, and carryingout hydrothermal reaction to obtain magnetic kaolin; and mixing the magnetic kaolin, sodium dodecyl benzene sulfonate, water, pyrrole and second ferric chloride, carrying out polymerization reaction,and sequentially washing and drying the polymerization reaction product to obtain the polypyrrole modified magnetic kaolin nano composite material. The polypyrrole modified magnetic kaolin nano composite material prepared by the invention has extremely high removal efficiency on heavy metal ions and organic pollutants in a water body, can remove various coexisting heavy metal ions at the same time, and can be repeatedly used for many times.

Description

technical field [0001] The invention belongs to the technical field of magnetic nano-composite materials, and in particular relates to a polypyrrole-modified magnetic kaolin nano-composite material and a preparation method and application thereof. Background technique [0002] At present, the problem of heavy metal pollution in industrial wastewater is becoming more and more serious, and its sources are extensive, often from metallurgy, mining, printing and dyeing and other industries. There are many kinds of pollutants contained in industrial wastewater, among which heavy metals are the most common and one of the most difficult pollutants to deal with. [0003] At present, there are mainly biological methods, chemical precipitation methods, adsorption methods, membrane separation methods, ion exchange methods, etc. to deal with heavy metal pollution in water. Among them, the adsorption method has the advantages of low cost, not easy to cause secondary pollution, and high r...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/28B01J20/30C02F1/28C02F101/20C02F101/22C02F101/30C02F101/34
CPCB01J20/262B01J20/12B01J20/06B01J20/28009C02F1/281C02F1/285B01J2220/4806B01J2220/4812C02F2101/20C02F2101/22C02F2101/30C02F2101/345
Inventor 郭永福赵宇豪
Owner SUZHOU UNIV OF SCI & TECH
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