Mineralisation and release of 14C-graphene oxide (GO) in soils

Simple item page
dc.contributor.authorNavarro, D.A.
dc.contributor.authorKah, M.
dc.contributor.authorLosic, D.
dc.contributor.authorKookana, R.S.
dc.contributor.authorMcLaughlin, M.J.
dc.date.issued2020
dc.description.abstractGraphene-based nanomaterials (GNMs) have been touted as miracle materials due to their extraordinary properties that can benefit many industries, including in agriculture and for environmental remediation. While improvement in nutrient delivery and the ability to adsorb environmental contaminants have been demonstrated, what happens to GNMs in soil is a question that has not been addressed. The main aim of this study was to investigate their degradation in soil to have a better understanding of their environmental fate. Using radioisotope techniques, this study assessed the potential mineralisation and release of graphene oxide (GO), one of the most commonly used forms of graphene. Results revealed that the conversion of GO to carbon dioxide was negligible (<2%) in microbially-active soils. GO remaining in soil was also not readily released by water extractions. The lack of mineralisation and release is indicative of GO's high (bio)degradation stability which is likely due to its limited availability resulting from its rapid homo/hetero-aggregation. Over-all, the results provide new and important information on the environmental fate of graphene nanomaterials applied to soils.
dc.description.statementofresponsibilityDivina A. Navarro, Mélanie Kah, Dusan Losic, Rai S. Kookana, Mike J. McLaughlin
dc.identifier.citationChemosphere, 2020; 238:124558-124558
dc.identifier.doi10.1016/j.chemosphere.2019.124558
dc.identifier.issn0045-6535
dc.identifier.issn1879-1298
dc.identifier.orcidNavarro, D.A. [0000-0002-8271-3578]
dc.identifier.orcidLosic, D. [0000-0002-1930-072X]
dc.identifier.orcidKookana, R.S. [0000-0002-0477-3284]
dc.identifier.orcidMcLaughlin, M.J. [0000-0001-6796-4144]
dc.identifier.urihttp://hdl.handle.net/2440/123419
dc.language.isoen
dc.publisherElsevier
dc.relation.granthttp://purl.org/au-research/grants/arc/DP150101760
dc.relation.granthttp://purl.org/au-research/grants/arc/IH150100003
dc.rights© 2019 Published by Elsevier Ltd. All rights reserved.
dc.source.urihttps://doi.org/10.1016/j.chemosphere.2019.124558
dc.subjectEnvironment
dc.subjectFate
dc.subjectGraphene oxide
dc.subjectMineralisation
dc.subjectNanomaterials
dc.subjectSoil
dc.titleMineralisation and release of 14C-graphene oxide (GO) in soils
dc.typeJournal article
pubs.publication-statusPublished

Files

Collections

Chemical Engineering publications
ARC Research Hub for Graphene Enabled Industry Transformation publications