Method for preparing porous difunctional adsorption material

An adsorption material, dual-function technology, applied in selective adsorption, chemical instruments and methods, ion exchange, etc., can solve problems such as single performance

Inactive Publication Date: 2016-02-03
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method can often only form a material with a single performance

Method used

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  • Method for preparing porous difunctional adsorption material
  • Method for preparing porous difunctional adsorption material
  • Method for preparing porous difunctional adsorption material

Examples

Experimental program
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Effect test

Embodiment 1

[0041] 1. Preparation of hollow dopamine-adhered macroporous materials

[0042] (1) Preparation of dopamine microspheres:

[0043] Dissolve 0.7g of polyvinylpyrrolidone powder in a mixed solution of 50mL of absolute ethanol and 10mL of deionized water, disperse it evenly by ultrasonication for 10 minutes, put it into a three-necked flask equipped with nitrogen, a stirrer, and a condenser, and pass nitrogen Half an hour, after fully removing the dissolved oxygen in it. Then, 5 mL of styrene monomer dissolved in 0.04 g of azobisisobutyronitrile was added under mechanical stirring, and then reacted in a water bath at 70° C. for 24 hours. After the reaction was complete, polystyrene microspheres were collected by centrifugation. The polystyrene microspheres were washed several times with a 1:3 solution of absolute ethanol and deionized water, and the prepared polystyrene microspheres were vacuum-dried overnight at 40 °C.

[0044] Add 1.0 g of dried polystyrene microspheres into...

Embodiment 2

[0064] 1. Preparation of hollow dopamine-adhered macroporous materials

[0065] (1) Preparation of dopamine microspheres:

[0066] Dissolve 0.7g of polyvinylpyrrolidone powder in a mixed solution of 50mL of absolute ethanol and 10mL of deionized water, disperse it evenly by ultrasonication for 10 minutes, put it into a three-necked flask equipped with nitrogen, a stirrer, and a condenser, and then pass nitrogen half an hour. After fully removing the dissolved oxygen therein, add 5 mL of styrene monomer dissolved with 0.04 g of azobisisobutyronitrile under mechanical stirring, and then react in a water bath at 70°C for 24 hours. After the reaction is complete, centrifuge to collect polystyrene micro ball. The polystyrene microspheres were washed several times with a 1:3 solution of absolute ethanol and deionized water, and the prepared polystyrene microspheres were vacuum-dried overnight at 40 °C.

[0067] Add 1.0 g of dried polystyrene microspheres into 35 mL of 98% concen...

Embodiment 3

[0082] 1. Preparation of hollow dopamine-adhered macroporous materials

[0083] (1) Preparation of dopamine microspheres:

[0084] Dissolve 0.7g of polyvinylpyrrolidone powder in a mixed solution of 50mL of absolute ethanol and 10mL of deionized water, disperse it evenly by ultrasonication for 10 minutes, put it into a three-necked flask equipped with nitrogen, a stirrer, and a condenser, and then pass nitrogen half an hour. After fully removing the oxygen dissolved therein, 5 mL of styrene monomer dissolved in 0.04 g of azobisisobutyronitrile was added under mechanical stirring. Finally, react in a water bath at 70° C. for 24 hours, and centrifuge to collect polystyrene microspheres after the reaction is complete. The polystyrene microspheres were washed several times with a 1:3 solution of absolute ethanol and deionized water, and the prepared polystyrene microspheres were vacuum-dried overnight at 40 °C.

[0085] Add 1.0 g of dried polystyrene microspheres to 40 mL of 9...

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Abstract

The invention relates to a method for preparing a porous difunctional adsorption material, which belongs to the technical field of the environment functional material. According to the invention, the method uses Hypermer 2296 to obtain a stabilize high internal phase emulsion, an oil phase comprises a monomer methyl acrylic glycidyl ester, a cross-linking agent divinyl benzene, a solvent toluene and an initiator azodiisobutyronitrile, a water phase is a potassium sulfate aqueous solution; after the water phase and oil phase are mixed, a stable water-in-oil emulsion is prepared after stirring preparation, a macroporous foam polymer is prepared after thermal initiation polymerization; then dopamine microspheres are grafted to a macroporous foamed material by a biology adhesion method; and finally, tetrahydrofuran is used for removing sulfonated styrene core and shell to obtain the macroporous material adhered with the hollow dopamine. The product has the characteristics of water-soluble performance and oil solubility of two materials, the hollow dopamine can effectively increase a specific surface area of the material and metal ions can be absorbed; the macroporous foam contains a lot of ester groups and are convenient for adhesion of trifluoro-cypermethrin, and two harmful substances can be removed simultaneously.

Description

technical field [0001] The invention belongs to the technical field of preparation of environmentally friendly functional materials, and relates to a method for preparing a porous dual-function adsorption material, in particular to a method for preparing a high specific surface macroporous adsorbent by adopting high internal phase emulsion polymerization and biological method for adhering hollow dopamine spherical shells method. Background technique [0002] Due to the rapid development of industry and agriculture, environmental pollution is very serious. For example, in agriculture, the abuse of pyrethroids has gradually threatened human health. 近年来,Shafer(T.J.Shafer,D.A.Meyer,K.M.Crofton,Developmentalneuro-toxicityofpyrethroidinsecticides:criticalreviewandfutureresearchneeds,Environ.HealthPerspect.113(2005)123–136.)和Ericksson(P.Ericksson,U.Talts,Neonatalexposuretoneurotoxicpesticidesincreasesadultsusceptibility:areviewofcurrentfinding,Neurotoxicology21( 2000) 37–47.) The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30B01D15/08
Inventor 笪祖林潘建明刘树成曾俊朱恒佳吴润润
Owner JIANGSU UNIV
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