Plastics adsorption and removal by 2D ultrathin iron oxide nanodiscs: From micro to nano

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dc.contributor.authorCao, Y.
dc.contributor.authorSathish, C.I.
dc.contributor.authorLi, Z.
dc.contributor.authorIbrar Ahmed, M.
dc.contributor.authorPerumalsamy, V.
dc.contributor.authorCao, C.
dc.contributor.authorYu, C.
dc.contributor.authorWijerathne, B.
dc.contributor.authorFleming, A.
dc.contributor.authorQiao, L.
dc.contributor.authorWang, S.
dc.contributor.authorYi, J.
dc.date.issued2024
dc.description.abstractThe escalation of microplastics/nanoplastics (MPs/NPs) contamination in aqueous systems has ignited considerable concern. Magnetic separation has emerged as a promising remedy for the removal of these pollutants, owing to its notable removal efficiency, cost-effectiveness, and environmentally friendly attributes. This study presents the utilization of ultra-thin magnetic Fe₃O₄ nanodiscs (NDs) for the adsorption and separation of MPs/ NPs. Investigations revealed that these NDs could effectively adsorb/remove MPs/NPs across a spectrum ranging from micro- to nano-scale, exhibiting a notable adsorption capacity of 188.4 mg g¯¹ . Mechanistically, MPs/NPs adsorption was driven by both electrostatic and magnetic forces originating from the vortex domain of NDs, which can be well described by pseudo-first-order and Sips models. Furthermore, the NDs exhibited outstanding reusability, maintaining over 90 % removal efficiency even after undergoing five cycles. This research introduces a cost-effective method for the separation of MPs/NPs, representing a significant stride in wastewater treatment methodologies.
dc.description.statementofresponsibilityYitong Cao, C.I. Sathish, Zhixuan Li, Muhammad Ibrar Ahmed, Vibin Perumalsamy, Chaojie Cao, Chenxi Yu, Binodhya Wijerathne, Adrew Fleming, Liang Qiao, Shaobin Wang, Jiabao Yi
dc.identifier.citationChemical Engineering Journal, 2024; 497:154610-1-154610-10
dc.identifier.doi10.1016/j.cej.2024.154610
dc.identifier.issn1385-8947
dc.identifier.issn1873-3212
dc.identifier.orcidWang, S. [0000-0002-1751-9162]
dc.identifier.urihttps://hdl.handle.net/2440/147914
dc.language.isoen
dc.publisherElsevier
dc.relation.granthttp://purl.org/au-research/grants/arc/LP210100436
dc.relation.granthttp://purl.org/au-research/grants/arc/LP200201079
dc.rights© 2024 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
dc.source.urihttp://dx.doi.org/10.1016/j.cej.2024.154610
dc.subjectmicroplastics; magnetic nanomaterials; magnetic separation; plastic pollution
dc.titlePlastics adsorption and removal by 2D ultrathin iron oxide nanodiscs: From micro to nano
dc.typeJournal article
pubs.publication-statusPublished

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