Metal ion binding properties of novel wool powders

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dc.contributor.authorNaik, Ren_AU
dc.contributor.authorWen, Gen_AU
dc.contributor.authorDharmaprakash, MSen_AU
dc.contributor.authorHureau, Sen_AU
dc.contributor.authorUedono, Aen_AU
dc.contributor.authorWang, XGen_AU
dc.contributor.authorLiu, XGen_AU
dc.contributor.authorCookson, PGen_AU
dc.contributor.authorSmith, SVen_AU
dc.date.accessioned2010-08-02T06:23:05Zen_AU
dc.date.available2010-08-02T06:23:05Zen_AU
dc.date.issued2010-02-05en_AU
dc.date.statistics2010-02-05en_AU
dc.description.abstractWool fibres have shown potential for the removal and recovery of toxic chemical and metal ions; however, their slow kinetics of binding has limited their widespread application. In this study three wool powders have been prepared from chopped wool fibre using various milling operations. Brunauer, Emmett, Teller analysis (BET) showed negligible change in surface area and Positron annihilation lifetime spectroscopy indicated no change in nanoporosity of the powders on processing. Binding of the transition metal ions, Co2+, Cu2+, and Cd2+ was investigated over the pH range 3-9 at ambient temperature (23°C) using their respective radioisotopes (i.e. 57Co, 64Cu, or 109Cd). The optimum pH for binding of Cu2+ and Cd2+ was in the range 6-8, while Co2+ absorption peak was sharp at pH 8. The rate of uptake of Cu2+ for each of the wool powder was dramatically faster (42 fold) than that of the wool fibre. In comparison with commercial cation exchange resins, the wool powders showed significantly higher (two to nine fold) metal ion loading capacity. Selective binding of the metal ions could be enhanced by varying pH and/or incubation times. The use of radioisotopes to monitor the metal ion binding allowed the development of a highly sensitive and rapid high-throughput analysis method for assessing wool powder binding properties. The ability to produce large quantities of wool powders and their ease of handling indicate that they have potential for application in separation and recovery of metal ions from industrial effluents and environmental waterways. © 2010, Wiley-Blackwell. The definitive version is available at www3.interscience.wiley.comen_AU
dc.identifier.citationNaik, R., Wen, G., Dharmaprakash, M. S., Hureau, S., Uedono, A., Wang, X. G., Liu, X. G., Cookson, P. G., & Smith, S. V. (2010). Metal ion binding properties of novel wool powders. Journal of Applied Polymer Science, 115(3), 1642-1650. doi:10.1002/app.31206en_AU
dc.identifier.govdoc2126en_AU
dc.identifier.issn0021-8995en_AU
dc.identifier.issue3en_AU
dc.identifier.journaltitleJournal of Applied Polymer Scienceen_AU
dc.identifier.pagination1642-1650en_AU
dc.identifier.urihttp://dx.doi.org/10.1002/app.31206en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1987en_AU
dc.identifier.volume115en_AU
dc.language.isoenen_AU
dc.publisherWiley-Blackwellen_AU
dc.subjectWoolen_AU
dc.subjectAbsorptionen_AU
dc.subjectRadioisotopesen_AU
dc.subjectPositronsen_AU
dc.subjectMetalsen_AU
dc.subjectBinding energyen_AU
dc.titleMetal ion binding properties of novel wool powdersen_AU
dc.typeJournal Articleen_AU
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