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Method for preparing functional polymer-active carbon composite material for water treatment

A composite material and polymer technology, applied in the field of preparation of functional polymer-activated carbon composite materials, can solve the problems of difficult mass production, complex preparation of mesoporous carbon, poor stability, etc. The effect of simple process

Inactive Publication Date: 2008-08-06
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the preparation of mesoporous carbon itself is relatively complicated, and it is not easy to produce in batches.
Moreover, polymethyl methacrylate directly penetrates into the matrix, and is not organically combined with the matrix, so there are problems such as poor stability.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Synthesis of polymethyl methacrylate-activated carbon composites with ester functional groups on the surface. Soak activated carbon in concentrated nitric acid at 70°C and stir for 3 hours, filter and wash with water. Weigh 0.15 g of the above activated carbon and spread it on the bottom of the reaction glass bottle. Then dissolve 0.1g of methyl methacrylate in 1mL of acetone, drop the mixed solution into the bottom of the bottle, and stir the powder. Seal the mouth of the bottle, put it in a refrigerator at 0°C for 5 hours, take out the bottle, and fill the bottle with nitrogen for 6 minutes. Finally the bottle was placed in an oven at 60°C for 24h. Wash repeatedly with ethanol and dry. That is, the polymethyl methacrylate-activated carbon composite material is obtained, and the material has better adsorption performance to phenol. Up to 22.72mg.g at room temperature -1 .

Embodiment 2

[0025] Synthesize polymethacrylic acid-N,N-dimethylaminoethyl ester-activated carbon composite materials with tertiary amino groups and carbonyl functional groups on the surface, soak the activated carbon in 63% concentrated nitric acid at 80°C for 3 hours, filter, and wash with water. Weigh 0.5 g of the above activated carbon and spread it on the bottom of the reaction glass bottle. Then dissolve 0.075g of N,N-dimethylaminoethyl methacrylate in 2mL of ethanol, drop the mixed solution into the bottom of the bottle, and stir the powder. Seal the mouth of the bottle, put it in a refrigerator at 0°C for 15 hours, take out the bottle, and fill it with nitrogen for 15 minutes; finally put the bottle in an oven at 80°C for 36 hours. The samples were taken out, washed with ethanol, and dried. That is, a functional polymethacrylic acid-N,N-dimethylaminoethyl ester-activated carbon composite material is obtained. The adsorption performance of this material on copper ions can be as hi...

Embodiment 3

[0027] To synthesize polyvinyl acetate-activated carbon composite material, the activated carbon was soaked in 63% concentrated nitric acid at 90°C and stirred for 3 hours, filtered and washed with water. Weigh 0.5 g of the above activated carbon and spread it on the bottom of the reaction glass bottle. Then 0.05g of vinyl acetate was dissolved in 3mL of tetrachloromethane, and the mixed solution was dropped into the bottom of the bottle, and the powder was stirred. Seal the mouth of the bottle, put it in a refrigerator at 0°C for 24 hours, take out the bottle, and fill it with nitrogen for 20 minutes; finally put the bottle in an oven at 90°C for 48 hours. The samples were taken out, washed repeatedly with ethanol, and dried. That is, the functional polyvinyl acetate-activated carbon composite material is obtained. At room temperature, the maximum adsorption value of this composite material for phenol can reach 37 mg.g -1 .

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Abstract

The invention discloses a preparation method of functional polymer, in particular to the preparation method of activated carbon composites which is used in water treatment in the technical field of environmental purification material. The procedures of the method are as following: firstly, putting powdered activated carbon materials into nitric acid to stir, wash, filter and dry; secondly, scattering monomer of polymer evenly into solvent to prepare into solution; thirdly, putting the solution obtained from the second procedure into the active carbon processed in the first procedure to stir evenly; fourthly, putting the solution into a sealed container in zero DEG C; filling the container with nitrogen and sealing the container for the solution to make polyreaction; washing up the obtained complexes with ethanol, then drying up the complexes and then obtaining a polymer which is active carbon complexes. The functional polymer which is activated carbon composites prepared by the invention keeps high specific surface, has functionality from polymer, has good adsorption performance to the metallic ion and organic matter in aqueous solution and is a novel composite material for water pollution treatment and environment purification.

Description

technical field [0001] The invention relates to a preparation method in the technical field of composite materials, in particular to a preparation method of a functional polymer-activated carbon composite material for water treatment. Background technique [0002] Activated carbon material is an important amorphous carbon material, which is a black porous solid with a well-developed pore structure and a large specific surface area, generally up to 1000~3000m 2 .g -1 , has a strong adsorption capacity for gases, inorganic or organic substances in solution and colloidal particles. As an adsorbent with excellent performance, activated carbon material has a unique pore structure and surface active functional groups, stable chemical properties, high mechanical strength, acid resistance, alkali resistance, heat resistance, insoluble in water and organic solvents, and can be regenerated after use. Activated carbon materials also show attractive prospects in the control of environ...

Claims

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Application Information

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IPC IPC(8): B01J20/30B01J20/20C02F1/28
Inventor 朱申敏杨娜张荻
Owner SHANGHAI JIAO TONG UNIV
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