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
Active Publication Date: 2014-02-12
BEIJING UNIV OF CHEM TECH
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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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