Using NaCl particles as porogen to prepare a highly adsorbent chitosan membranes
作者： An-Chong Chao , Shu-Huei Yu , Guo-Syong Chuang
DOI: 10.1016/J.MEMSCI.2006.01.016
关键词: Chitosan 、 Genipin 、 Freeze-drying 、 Membrane 、 Chemistry 、 Adsorption 、 Crystallinity 、 Sorption 、 Aqueous solution 、 Chromatography 、 Chemical engineering
摘要: Abstract Macroporous chitosan membranes were prepared by using NaCl particles porogen and genipin as cross-linking agent. For characterization sorption behavior comparison, other cross-linked either freeze drying or silica porogen. The mean pore diameter, the porosity, crystallinity index (CrI) well effect of procedures these examined. reduced CrI membrane. oven (OD) procedure decreased increased when compared with vacuum (VD) procedure. heat treatment membrane in aqueous NaOH to attract Under same conditions, had better performance on RR 189 Cu 2+ than membranes. maximum capacity ( q e ) reached 1836.17 mg 189/g 151.98 mg /g chitosan. diameter d was much larger adsorbate molecules ), such that ratio / little influence . porosity amorphous extent almost When tyrosinase catalyzing, hydrocaffeic acid (HCA) grafted treated 10 times more beads. can be used a good adsorbent high loading for implanting (such ligands, enzymes, etc.) on.
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