Rapid, selective heavy metal removal from water by a metal-organic framework/polydopamine composite

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dc.contributor.authorSun, Daniel T.
dc.contributor.authorPeng, Li
dc.contributor.authorReeder, Washington S.
dc.contributor.authorMoosavi, Seyed Mohamad
dc.contributor.authorTiana, Davide
dc.contributor.authorBritt, David K.
dc.contributor.authorOveisi, Emad
dc.contributor.authorQueen, Wendy L.
dc.contributor.funderSchweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschungen
dc.contributor.funderDeutsche Forschungsgemeinschaften
dc.contributor.funderNational Center of Competence in Research Materials’ Revolution: Computational Design and Discovery of Novel Materialsen
dc.contributor.funderU.S. Department of Energyen
dc.contributor.funderSwiss National Supercomputing Center (CSCS)en
dc.date.accessioned2018-05-02T09:10:41Z
dc.date.available2018-05-02T09:10:41Z
dc.date.issued2018-03-14
dc.date.updated2018-05-01T17:57:20Z
dc.description.abstractDrinking water contamination with heavy metals, particularly lead, is a persistent problem worldwide with grave public health consequences. Existing purification methods often cannot address this problem quickly and economically. Here we report a cheap, water stable metal–organic framework/polymer composite, Fe-BTC/PDA, that exhibits rapid, selective removal of large quantities of heavy metals, such as Pb2+ and Hg2+, from real world water samples. In this work, Fe-BTC is treated with dopamine, which undergoes a spontaneous polymerization to polydopamine (PDA) within its pores via the Fe3+ open metal sites. The PDA, pinned on the internal MOF surface, gains extrinsic porosity, resulting in a composite that binds up to 1634 mg of Hg2+ and 394 mg of Pb2+ per gram of composite and removes more than 99.8% of these ions from a 1 ppm solution, yielding drinkable levels in seconds. Further, the composite properties are well-maintained in river and seawater samples spiked with only trace amounts of lead, illustrating unprecedented selectivity. Remarkably, no significant uptake of competing metal ions is observed even when interferents, such as Na+, are present at concentrations up to 14 000 times that of Pb2+. The material is further shown to be resistant to fouling when tested in high concentrations of common organic interferents, like humic acid, and is fully regenerable over many cycles.en
dc.description.sponsorshipDeutsche Forschungsgemeinschaft ((DFG, priority program SPP 1570); U.S. Department of Energy (Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract DE-AC02- 05CH11231); Swiss National Supercomputing Center (CSCS) under Project s611)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationSun, D. T., Peng, L., Reeder, W. S., Moosavi, S. M., Tiana, D., Britt, D. K., Oveisi, E. and Queen, W. L. (2018) 'Rapid, Selective Heavy Metal Removal from Water by a Metal–Organic Framework/Polydopamine Composite', ACS Central Science, 4(3), pp. 349-356. doi: 10.1021/acscentsci.7b00605en
dc.identifier.doi10.1021/acscentsci.7b00605
dc.identifier.endpage356en
dc.identifier.issn2374-7943
dc.identifier.journaltitleACS Central Scienceen
dc.identifier.startpage349en
dc.identifier.urihttps://hdl.handle.net/10468/5926
dc.identifier.volume4en
dc.language.isoenen
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.projectinfo:eu-repo/grantAgreement/SNSF/Careers::Assistant Professor (AP) Energy Grants/PYAPP2_160581/CH/Nanoporous Adsorbents for Energetically Favorable Industrial Gas Separations/en
dc.relation.urihttps://pubs.acs.org/doi/10.1021/acscentsci.7b00605
dc.rights© 2018 American Chemical Society. This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes.en
dc.rights.urihttps://pubs.acs.org/page/policy/authorchoice_termsofuse.htmlen
dc.subjectEfficient removalen
dc.subjectCross-linkingen
dc.subjectFrameworken
dc.subjectMIL-100(FE)en
dc.subjectOxidationen
dc.subjectIron(III)en
dc.subjectAciden
dc.subjectCO2en
dc.subjectNanospheresen
dc.subjectChemistryen
dc.titleRapid, selective heavy metal removal from water by a metal-organic framework/polydopamine compositeen
dc.typeArticle (peer-reviewed)en
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