Wool powders used as sorbents to remove Co2+ ions from aqueous solution

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dc.contributor.authorWen, Gen_AU
dc.contributor.authorNaik, Ren_AU
dc.contributor.authorCookson, PGen_AU
dc.contributor.authorSmith, SVen_AU
dc.contributor.authorLiu, XGen_AU
dc.contributor.authorWang, XGen_AU
dc.date.accessioned2010-04-20en_AU
dc.date.accessioned2010-04-30T05:08:47Zen_AU
dc.date.available2010-04-20en_AU
dc.date.available2010-04-30T05:08:47Zen_AU
dc.date.issued2010-01-25en_AU
dc.date.statistics2010-01-25en_AU
dc.description.abstractThe Co2+ sorption of two wool powders was investigated using its radioisotope 57Co (T1/2 = 271.8 days and γ = 122.1 and 136.5 keV) as a tracer. The effects of the type of buffer, the pH value, the contact time and the initial concentration of Co2+ on the sorption behaviour of wool powders were studied. The Co2+ releasing ability of wool powders and the re-use of wool powders to sorb Co2+ were also examined. The optimum sorption of Co2+ by the powders occurred at pH 8 in phosphate buffer and pH 10 in ammonium sulphate buffer. Fourier-transform infrared spectroscopy (FTIR) was used to study the changes in chemical structure of the wool after exposure to both buffer solutions. Compared to the untreated wool fibre, the fine wool powders showed rapid sorption rates and high sorption capacities for Co2+. Co2+ ions were recovered after exposing the Co2+ loaded wool to HCl (0.1 M) and buffer at pH 3 (glycine/sodium chloride). After releasing Co2+ ions from wool powders, the efficiency of wool powders re-used to sorb Co2+ was 80% of that of the fresh wool powders. It is concluded from this study that wool powder can be used as an efficient sorbent to remove and release Co2+ from solution. © 2010, Elsevier Ltd.en_AU
dc.identifier.citationWen, G., Naik, R., Cookson, P. G., Smith, S. V., Liu, X., & Wang, X. G. (2010). Wool powders used as sorbents to remove Co2+ ions from aqueous solution. Powder Technology, 197(3), 235-240. doi:10.1016/j.powtec.2009.09.021en_AU
dc.identifier.govdoc1566en_AU
dc.identifier.issn0032-5910en_AU
dc.identifier.issue3en_AU
dc.identifier.journaltitlePowder Technologyen_AU
dc.identifier.pagination235-240en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.powtec.2009.09.021en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3233en_AU
dc.identifier.volume197en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectWoolen_AU
dc.subjectSorbent recovery systemsen_AU
dc.subjectCarbon dioxideen_AU
dc.subjectAqueous solutionsen_AU
dc.subjectRadioisotopesen_AU
dc.subjectSorptionen_AU
dc.titleWool powders used as sorbents to remove Co2+ ions from aqueous solutionen_AU
dc.typeJournal Articleen_AU
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