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

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dc.contributor.author Sun, Daniel T.
dc.contributor.author Peng, Li
dc.contributor.author Reeder, Washington S.
dc.contributor.author Moosavi, Seyed Mohamad
dc.contributor.author Tiana, Davide
dc.contributor.author Britt, David K.
dc.contributor.author Oveisi, Emad
dc.contributor.author Queen, Wendy L.
dc.date.accessioned 2018-05-02T09:10:41Z
dc.date.available 2018-05-02T09:10:41Z
dc.date.issued 2018-03-14
dc.identifier.citation Sun, 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.7b00605 en
dc.identifier.volume 4 en
dc.identifier.startpage 349 en
dc.identifier.endpage 356 en
dc.identifier.issn 2374-7943
dc.identifier.uri http://hdl.handle.net/10468/5926
dc.identifier.doi 10.1021/acscentsci.7b00605
dc.description.abstract Drinking 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.sponsorship Deutsche 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.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Chemical Society (ACS) en
dc.relation.uri https://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.uri https://pubs.acs.org/page/policy/authorchoice_termsofuse.html en
dc.subject Efficient removal en
dc.subject Cross-linking en
dc.subject Framework en
dc.subject MIL-100(FE) en
dc.subject Oxidation en
dc.subject Iron(III) en
dc.subject Acid en
dc.subject CO2 en
dc.subject Nanospheres en
dc.subject Chemistry en
dc.title Rapid, selective heavy metal removal from water by a metal-organic framework/polydopamine composite en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Davide Tiana, Chemistry, University College Cork, Cork, Ireland. +353-21-490-3000 Email: davide.tiana@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2018-05-01T17:57:20Z
dc.description.version Published Version en
dc.internal.rssid 435972681
dc.internal.wokid WOS:000428801200009
dc.contributor.funder Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung en
dc.contributor.funder Deutsche Forschungsgemeinschaft en
dc.contributor.funder National Center of Competence in Research Materials’ Revolution: Computational Design and Discovery of Novel Materials en
dc.contributor.funder U.S. Department of Energy en
dc.contributor.funder Swiss National Supercomputing Center (CSCS) en
dc.description.status Peer reviewed en
dc.identifier.journaltitle ACS Central Science en
dc.internal.copyrightchecked Yes en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress davide.tiana@ucc.ie en
dc.relation.project info:eu-repo/grantAgreement/SNSF/Careers::Assistant Professor (AP) Energy Grants/PYAPP2_160581/CH/Nanoporous Adsorbents for Energetically Favorable Industrial Gas Separations/ en

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