All-in-one bioinspired multifunctional graphene biopolymer foam for simultaneous removal of multiple water pollutants

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dc.contributor.authorYap, P.L.
dc.contributor.authorHassan, K.
dc.contributor.authorAuyoong, Y.L.
dc.contributor.authorMansouri, N.
dc.contributor.authorFarivar, F.
dc.contributor.authorTran, D.N.H.
dc.contributor.authorLosic, D.
dc.date.issued2020
dc.descriptionFirst published: 09 August 2020
dc.description.abstractPolluted waters are complex systems with many different co‐existing contaminants that make their simultaneous removal a very challenging task. To address this problem, all‐in‐one ad/ab‐sorbent with unique combination of interfacial properties and multiple surface chemistry is developed to simultaneously and efficiently remove several pollutants including heavy metals, dyes, oils, and organic solvents. By mimicking the wetting micro‐topology of a darkling beetle with a combined hydrophilic‐hydrophobic surface, a new bioinspired adsorbent, graphene biopolymer foam (Alg‐Fe3O4‐rGO‐4S) for removal of multiple water pollutants is engineered by combining alginate (Alg) and reduced graphene oxide (rGO) functionalized with tetrathiol that is also decorated with iron oxide nanoparticles (Fe3O4). This concept is first proved by single pollutant removal, showing adsorption capacity of 789.7 ± 36 mg/g for methylene blue (MB), 107.0 ± 2.1 mg/g for Hg (II), 73.5 ± 0.7 mg/g for Cu (II), and rapid oil‐water separation with high sorption capacity (11–18 g/g). A remarkable performance for simultaneous removal of their mixtures in milli‐Q, river, and sea water is demonstrated with efficiency for MB (≈90%), Cu (II) (>99.99%) and Hg (II) (100%) and rapid (≈30 s) uptake of organic solvents and oils. The obtained results indicate a valuable potential of proposed concept for simultaneous removal of co‐existing water pollutants.
dc.description.statementofresponsibilityPei Lay Yap, Kamrul Hassan, Yow Loo Auyoong, Negar Mansouri, Farzaneh Farivar, Diana N. H. Tran and Dusan Losic
dc.identifier.citationAdvanced Materials Interfaces, 2020; 7(18):2000664-1-2000664-14
dc.identifier.doi10.1002/admi.202000664
dc.identifier.issn2196-7350
dc.identifier.issn2196-7350
dc.identifier.orcidYap, P.L. [0000-0001-7346-8139]
dc.identifier.orcidHassan, K. [0000-0002-0546-9719]
dc.identifier.orcidMansouri, N. [0000-0002-1051-5417]
dc.identifier.orcidFarivar, F. [0000-0002-4829-1682]
dc.identifier.orcidTran, D.N.H. [0000-0002-4023-3373]
dc.identifier.orcidLosic, D. [0000-0002-1930-072X]
dc.identifier.urihttp://hdl.handle.net/2440/127439
dc.language.isoen
dc.publisherWiley-VCH GmbH
dc.relation.granthttp://purl.org/au-research/grants/arc/IH150100003
dc.rights© 2020 Wiley-VCH GmbH
dc.source.urihttps://doi.org/10.1002/admi.202000664
dc.subjectAlginate; graphene; heavy metals; oils removal; organic dyes
dc.titleAll-in-one bioinspired multifunctional graphene biopolymer foam for simultaneous removal of multiple water pollutants
dc.typeJournal article
pubs.publication-statusPublished

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