Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.memsci.2006.07.045
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dc.titleAdsorptive removal of copper ions with highly porous chitosan/cellulose acetate blend hollow fiber membranes
dc.contributor.authorLiu, C.
dc.contributor.authorBai, R.
dc.date.accessioned2014-10-08T08:31:44Z
dc.date.available2014-10-08T08:31:44Z
dc.date.issued2006-11-01
dc.identifier.citationLiu, C., Bai, R. (2006-11-01). Adsorptive removal of copper ions with highly porous chitosan/cellulose acetate blend hollow fiber membranes. Journal of Membrane Science 284 (1-2) : 313-322. ScholarBank@NUS Repository. https://doi.org/10.1016/j.memsci.2006.07.045
dc.identifier.issn03767388
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/87454
dc.description.abstractIn this study, highly porous adsorptive hollow fiber membranes were directly prepared from chitosan (CS) and cellulose acetate (CA) blend solutions and were examined for copper ion removal from aqueous solutions in a batch adsorption mode. Four types of hollow fiber membranes were spun from two CS/CA blends (with a CS/CA/forming acid ratio of 3/12/85 or 2/18/80) in two types of coagulants (water or 3 wt.% NaOH solution). All the CS/CA blend hollow fiber membranes displayed sponge-like and macrovoids-free structures, with specific surface areas in the range of 12.2-15.2 m2/g, porosities of 70.4-79.7%, and pore sizes of 0.05-0.2 μm, depending on the CS/CA ratios and the type of coagulants used. Adsorption experiments showed that the CS/CA blend hollow fiber membranes had good adsorption capacity (up to 35.3-48.2 mg/g), fast adsorption rates and short adsorption equilibrium times (less than 20-70 min) for copper ions, and can work effectively at low copper ion concentrations (
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.memsci.2006.07.045
dc.sourceScopus
dc.subjectAdsorption kinetics and mechanisms
dc.subjectAdsorptive membrane
dc.subjectChitosan/cellulose acetate blend hollow fiber
dc.subjectCopper removal
dc.subjectDesorption
dc.typeArticle
dc.contributor.departmentDIVISION OF ENVIRONMENTAL SCIENCE & ENGG
dc.description.doi10.1016/j.memsci.2006.07.045
dc.description.sourcetitleJournal of Membrane Science
dc.description.volume284
dc.description.issue1-2
dc.description.page313-322
dc.description.codenJMESD
dc.identifier.isiut000241431400032
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