Preparation method and application of porous material with surface grafted beta-cyclodextrin

A porous material, cyclodextrin technology, applied in chemical instruments and methods, other chemical processes, adsorption water/sewage treatment, etc., can solve problems such as particle surface reduction, increase specific surface area, and good environmental compatibility , good adsorption effect
CN103570948AActive Publication Date: 2014-02-12BEIJING UNIV OF CHEM TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING UNIV OF CHEM TECH
Publication Date
2014-02-12

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Abstract

The invention discloses a preparation method and application of porous material with surface grafted beta-cyclodextrin, and belongs to the technical field of adsorbents. The preparation method comprises the following steps: preparing a polystyrene porous material by polymerizing concentrated emulsion, and then performing chloromethylation and amination reaction, feeding amino group into the surface of the polystyrene porous material, chemically modifying beta-cyclodextrin, feeding carboxyl group into the beta-cyclodextrin molecule, immersing the surface aminated polystyrene porous material in water solution of the carboxylated beta-cyclodextrin, reacting for 12-72 hours at 20-60 DEG.C under vacuum pumping condition to obtain the porous material with surface chemically grated beta-cyclodextrin. The porous material not only maintains the specific supermolecule performance of parent molecule, but also has unique macromolecule effect; since the cyclodextrin is starch fermentation product and good in environment compatibility, the cyclodextrin can be used for treating wastewater containing organic pollutant after being modified, the organic pollutant in the wastewater can be effectively removed, and the cyclodextrin is an ideal environment-friendly adsorbent.
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Description

technical field

[0001] The invention provides a method for preparing a porous material surface chemically grafted with β-cyclodextrin, which belongs to the technical field of adsorbents. Background technique

[0002] The use of phenolic compounds is quite extensive, and the amount of use is increasing day by day. The degree of environmental pollution by phenolic wastewater is becoming more and more serious, and the harm to human beings is also gradually deepening. It is precisely because of the high toxicity and refractory characteristics of phenolic compounds in wastewater that it has become a recognized worldwide problem in the field of water treatment and has also attracted the attention of various countries. At present, the treatment technologies for phenol-containing wastewater at home and abroad include physical extraction and adsorption, chemical oxidation and biological transformation. However, due to high cost and renewable issues, many conventional methods for tre...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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