Efficient removal of polycyclic aromatic hydrocarbons and heavy metals from water by electrospun nanofibrous polycyclodextrin membranes

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buir.contributor.authorÇelebioğlu, Aslı
buir.contributor.authorTopuz, Fuat
buir.contributor.authorYıldız, Zehra İrem
buir.contributor.authorUyar, Tamer
buir.contributor.orcidUyar, Tamer|0000-0002-3989-4481
dc.citation.epage7860en_US
dc.citation.issueNumber4en_US
dc.citation.spage7850en_US
dc.citation.volumeNumber4en_US
dc.contributor.authorÇelebioğlu, Aslıen_US
dc.contributor.authorTopuz, Fuaten_US
dc.contributor.authorYıldız, Zehra İremen_US
dc.contributor.authorUyar, Tameren_US
dc.date.accessioned2020-02-12T06:34:52Z
dc.date.available2020-02-12T06:34:52Z
dc.date.issued2019
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractHere, a highly efficient membrane based on electrospun polycyclodextrin (poly-CD) nanofibers was prepared and exploited for the scavenging of various polycyclic aromatic hydrocarbons (PAHs) and heavy metals from water. The poly-CD nanofibers were produced by the electrospinning of CD molecules in the presence of a cross-linker (i.e., 1,2,3,4-butanetetracarboxylic acid), followed by heat treatment to obtain an insoluble poly-CD nanofibrous membrane. The membrane was used for the removal of several PAH compounds (i.e., acenaphthene, fluorene, fluoranthene, phenanthrene, and pyrene) and heavy metals (i.e., Pb2+, Ni2+, Mn2+, Cd2+, Zn2+, and Cu2+) from water over time. Experiments were made on the batch sorption of PAHs and heavy metals from contaminated water to explore the binding affinity of PAHs and heavy metals to the poly-CD membrane. The equilibrium sorption capacity (qe) of the poly-CD nanofibrous membrane was found to be 0.43 ± 0.045 mg/g for PAHs and 4.54 ± 0.063 mg/g for heavy metals, and the sorption kinetics fitted well with the pseudo-second-order model for both types of pollutants. The membrane could be recycled after treatment with acetonitrile or a 2% nitric acid solution and reused up to four times with similar performance. Further, dead-end filtration experiments showed that the PAH removal efficiencies were as high as 92.6 ± 1.6 and 89.9 ± 4.8% in 40 s for the solutions of 400 and 600 μg/L PAHs, respectively. On the other hand, the removal efficiencies for heavy metals during the filtration were 94.3 ± 5.3 and 72.4 ± 23.4% for 10 and 50 mg/L solutions, respectively, suggesting rapid and efficient filtration of heavy metals and PAHs by the nanofibrous poly-CD membrane.en_US
dc.identifier.doi10.1021/acsomega.9b00279en_US
dc.identifier.issn2470-1343
dc.identifier.urihttp://hdl.handle.net/11693/53295
dc.language.isoEnglishen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.isversionofhttps://dx.doi.org/10.1021/acsomega.9b00279en_US
dc.source.titleACS Omegaen_US
dc.subjectSorptionen_US
dc.subjectNanofibersen_US
dc.subjectMoleculesen_US
dc.subjectMembranesen_US
dc.subjectHeavy metalsen_US
dc.titleEfficient removal of polycyclic aromatic hydrocarbons and heavy metals from water by electrospun nanofibrous polycyclodextrin membranesen_US
dc.typeArticleen_US

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Institute of Materials Science and Nanotechnology (UNAM)