Please use this identifier to cite or link to this item: https://dspace.iiti.ac.in/handle/123456789/7696
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dc.contributor.authorSinha-Ray, Sumanen_US
dc.contributor.authorSinha-Ray, Sumanen_US
dc.date.accessioned2022-03-17T01:00:00Z-
dc.date.accessioned2022-03-21T11:12:33Z-
dc.date.available2022-03-17T01:00:00Z-
dc.date.available2022-03-21T11:12:33Z-
dc.date.issued2015-
dc.identifier.citationSinha-Ray, S., Sinha-Ray, S., Yarin, A. L., & Pourdeyhimi, B. (2015). Application of solution-blown 20-50nm nanofibers in filtration of nanoparticles: The efficient van der waals collectors. Journal of Membrane Science, 485, 132-150. doi:10.1016/j.memsci.2015.02.026en_US
dc.identifier.issn0376-7388-
dc.identifier.otherEID(2-s2.0-84926430371)-
dc.identifier.urihttps://doi.org/10.1016/j.memsci.2015.02.026-
dc.identifier.urihttps://dspace.iiti.ac.in/handle/123456789/7696-
dc.description.abstractIn this work filtration efficiency of commercially available filter media with fiber/pore sizes of the scale of 10. μm is dramatically increased by not only adding electrospun nanofibers, as is usually done, but also a layer of ultrafine supersonically blown 20-50. nm nanofibers. Three different commercially available base filters were modified with (i) electrospun nanofibers alone, (ii) solution-blown 20-50. nm nanofibers alone, and (iii) the dual coating with electrospun nanofibers deposited first and the solution-blown 20-50. nm nanofibers deposited on top of them. Detailed observations of nanoparticle removal by these base and the above-mentioned modified filters revealed that the filters with dual electrospun nanofibers (deposited first) and the solution-blown 20-50. nm nanofibers deposited on top of them are the most effective in removing the below-200. nm Cu nanoparticles/clusters from aqueous suspensions. Experiments were conducted in two different time ranges: (a) for 8-15. s, and (b) for 8. min. It was found that the efficiency of the dual-coated filters containing 20-50. nm fibers was significantly higher than those of the others at the lowest nanoparticle concentrations of 0.2-0.5. ppm in suspension. The experiments conducted for longer time revealed that the smallest nanofibers were as efficient in particle retention as in the shorter-time experiments, and there was no visible breakage pattern of these nanofibers. The theory developed in the present work explains and describes how the smallest solution-blown nanofibers introduce a novel physical mechanism of nanoparticle interception (the attractive van der Waals forces) and become significantly more efficient collectors compared to the larger electrospun nanofibers. The theory predicts the domain of nanoparticle collection due to the van der Waals forces. The theory also elucidates the morphology of the nanoparticle clusters being accumulated at the smallest nanofiber surfaces, including the clusters growing at the windward side, or in some cases also on the leeward side of a nanofiber. © 2015 Elsevier B.V.en_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.sourceJournal of Membrane Scienceen_US
dc.subjectAlgorithmsen_US
dc.subjectNanoparticlesen_US
dc.subjectSuspensions (fluids)en_US
dc.subjectVan der Waals forcesen_US
dc.subjectAqueous suspensionsen_US
dc.subjectElectrospun nanofibersen_US
dc.subjectFiltration efficiencyen_US
dc.subjectFiltration theoryen_US
dc.subjectNanoparticle clustersen_US
dc.subjectNanoparticle concentrationsen_US
dc.subjectNanoparticle removalsen_US
dc.subjectUltrafineen_US
dc.subjectNanofibersen_US
dc.subjectcelluloseen_US
dc.subjectcopper nanoparticleen_US
dc.subjectglassen_US
dc.subjectnanofiberen_US
dc.subjectnanoparticleen_US
dc.subjectpolystyreneen_US
dc.subjectaqueous solutionen_US
dc.subjectArticleen_US
dc.subjectcontrolled studyen_US
dc.subjectdiffusionen_US
dc.subjectelectrospinningen_US
dc.subjectmembrane filteren_US
dc.subjectmembrane technologyen_US
dc.subjectnanofilteren_US
dc.subjectnanofiltrationen_US
dc.subjectnanotechnologyen_US
dc.subjectparticle sizeen_US
dc.subjectpriority journalen_US
dc.subjectscanning electron microscopyen_US
dc.subjectsurface propertyen_US
dc.titleApplication of solution-blown 20-50nm nanofibers in filtration of nanoparticles: The efficient van der Waals collectorsen_US
dc.typeJournal Articleen_US
Appears in Collections:Department of Metallurgical Engineering and Materials Sciences

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