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Inventors: Pan JM, Hu W, Xu LC, Dai JD, Li XX, Li CX, Yan YS
Patent Title: Preparation method of fly ash superbead magnetic composite material surface imprinting adsorbent
Publication date: 2012
Publication number: CN102350319

Abstract: The invention relates to a preparation method of a fly ash superbead magnetic composite material surface imprinting adsorbent. The invention belongs to the technical field of environmental material preparation. Through a microemulsion method, cross-linked chitosan is used for coating nano-grade gamma-Fe2O3 and micrometer-grade ball-shaped fly ash superbeads, such that the fly ash superbead magnetic composite material is obtained; the fly ash superbead magnetic composite material is adopted as a substrate, molecularly imprinted polymer modification is carried out on the surface of the substrate through a suspension polymerization method; template molecules bisphenol A are eluted, such that the fly ash superbead magnetic composite material surface imprinting adsorbent is obtained. The ball-shaped imprinting adsorbent has substantial thermal and magnetic stabilities. 1H-NMR shows that hydrogen bonding among the molecules is an identification framework of the imprinting adsorbent. As a result of a static absorbing experiment, the fly ash superbead magnetic composite material surface imprinting adsorbent provided by the invention has relatively high adsorption capacity, rapid adsorption dynamic property and substantial BPA molecule identification performance.
URL: http://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20120215&DB=EPODOC&locale=en_EP&CC=CN&NR=102350319A&KC=A&ND=1

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