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Inventors: Zhang AL, Zhang YH, Zhou JT
Patent Title: Preparation method of metal ion imprinted chitosan crosslinked membrane adsorbent and application thereof
Publication date: 2012
Publication number: CN102430391

Abstract: Belonging to the technical field of adsorption material preparation, the invention relates to a preparation method of a metal ion imprinted chitosan crosslinked membrane adsorbent. The method is characterized by: making a metal salt and a chitosan solution to form a uniform complex membrane preparation solution, which is then subjected to tape casting so as to form a membrane, bringing the obtained imprinted membrane to a pre-crosslinking reaction in a water solution, then conducting a chemical crosslinking modification reaction, finally eluting the metal ion and a pre-cross-linking agent so as to release amino, thus obtaining a metal ion imprinted chitosan crosslinked membrane adsorbent. The chitosan adsorbent prepared in the invention exists in the form of a membrane, and has the advantages of large specific surface area, strong acid resistance, high adsorption capacity, and good selectivity, etc. The prepared chitosan adsorbent is of far-reaching significance for treating metal ion-containing wastewater, and especially has wide application prospects for treating low concentration metal ion-containing wastewater.
URL: http://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20120502&DB=EPODOC&locale=en_EP&CC=CN&NR=102430391A&KC=A&ND=1

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