Carbon nanocages as heavy metal ion adsorbents

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dc.contributor.authorBurke, David M.
dc.contributor.authorO'Byrne, Justin P.
dc.contributor.authorFleming, Peter G.
dc.contributor.authorBorah, Dipu
dc.contributor.authorMorris, Michael A.
dc.contributor.authorHolmes, Justin D.
dc.contributor.funderEnvironmental Protection Agencyen
dc.date.accessioned2018-08-30T13:35:46Z
dc.date.available2018-08-30T13:35:46Z
dc.date.issued2011-07-19
dc.date.updated2018-08-06T15:08:11Z
dc.description.abstractHeavy metal ion contamination in drinking water poses a major risk to human health, whilst contamination in wastewater streams can cause damage to the wider environment. In this study carbon nanocages, synthesised using a supercritical fluid deposition method, were examined as adsorbents of Pb2+ ions from aqueous solutions. Through careful selection of the catalyst and the carbon deposition temperature and pressure, high yields of nanocages with surface areas up to 1175 m2 g−1 were synthesised. These high surface area materials were subsequently tested for their ability to absorb Pb2+ ions, as a function of pH, from simulated wastewater. The nanocages were found to be effective at removing the Pb2+ ions at levels of 11.1 mg g−1, compared to 7.6 mg g−1 for commercially available activated carbon. The kinetics of metal ion adsorption by the nanocages and activated carbon can be described by a pseudo-second-order kinetics model, with a rate coefficient (k2) of 4.8 × 102 g mg−1 min−1.en
dc.description.sponsorshipEnvironmental Protection Agency, Ireland (Project: STRIVE 2007-PhD-ET-10).en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationBurke, D. M., O'Byrne, J. P., Fleming, P. G., Borah, D., Morris, M. A. and Holmes, J. D. (2011) 'Carbon nanocages as heavy metal ion adsorbents', Desalination, 280(1), pp. 87-94. doi: 10.1016/j.desal.2011.06.053en
dc.identifier.doi10.1016/j.desal.2011.06.053
dc.identifier.endpage94en
dc.identifier.issn0011-9164
dc.identifier.journaltitleDesalinationen
dc.identifier.startpage87en
dc.identifier.urihttps://hdl.handle.net/10468/6691
dc.identifier.volume280en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urihttp://www.sciencedirect.com/science/article/pii/S0011916411005819
dc.rights© 2011 Elsevier B.V. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 licenseen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectCarbonen
dc.subjectNanocagesen
dc.subjectLead ionsen
dc.subjectAdsorptionen
dc.subjectRemediationen
dc.titleCarbon nanocages as heavy metal ion adsorbentsen
dc.typeArticle (peer-reviewed)en
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