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dc.contributor.authorJin, Chao
dc.contributor.authorGlawdel, Tomasz
dc.contributor.authorRen, Carolyn L.
dc.contributor.authorEmelko, Monica B.
dc.date.accessioned2017-03-21 19:26:41 (GMT)
dc.date.available2017-03-21 19:26:41 (GMT)
dc.date.issued2015-12-11
dc.identifier.urihttp://dx.doi.org/10.1038/srep17747
dc.identifier.urihttp://hdl.handle.net/10012/11567
dc.description© APS, Jin, C., Glawdel, T., Ren, C. L., & Emelko, M. B. (2015). Non-linear, non-monotonic effect of nano-scale roughness on particle deposition in absence of an energy barrier: Experiments and modeling. Scientific Reports, 5, 17747. https://doi.org/10.1038/srep17747en
dc.description.abstractDeposition of colloidal- and nano-scale particles on surfaces is critical to numerous natural and engineered environmental, health, and industrial applications ranging from drinking water treatment to semi-conductor manufacturing. Nano-scale surface roughness-induced hydrodynamic impacts on particle deposition were evaluated in the absence of an energy barrier to deposition in a parallel plate system. A non-linear, non-monotonic relationship between deposition surface roughness and particle deposition flux was observed and a critical roughness size associated with minimum deposition flux or “sag effect” was identified. This effect was more significant for nanoparticles (<1 μm) than for colloids and was numerically simulated using a Convective-Diffusion model and experimentally validated. Inclusion of flow field and hydrodynamic retardation effects explained particle deposition profiles better than when only the Derjaguin-Landau-Verwey-Overbeek (DLVO) force was considered. This work provides 1) a first comprehensive framework for describing the hydrodynamic impacts of nano-scale surface roughness on particle deposition by unifying hydrodynamic forces (using the most current approaches for describing flow field profiles and hydrodynamic retardation effects) with appropriately modified expressions for DLVO interaction energies, and gravity forces in one model and 2) a foundation for further describing the impacts of more complicated scales of deposition surface roughness on particle deposition.en
dc.description.sponsorshipWe thank the Natural Sciences and Engineering Research Council of Canada (NSERC) and the Canadian Water Network of financial support.en
dc.language.isoenen
dc.publisherSpringer Natureen
dc.rightsAttribution 4.0 International*
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/*
dc.subjectChemical engineeringen
dc.subjectEnvironmental sciencesen
dc.titleNon-linear, non-monotonic effect of nano-scale roughness on particle deposition in absence of an energy barrier: Experiments and modelingen
dc.typeArticleen
dcterms.bibliographicCitationJin, C., Glawdel, T., Ren, C. L., & Emelko, M. B. (2015). Non-linear, non-monotonic effect of nano-scale roughness on particle deposition in absence of an energy barrier: Experiments and modeling. Scientific Reports, 5, 17747. https://doi.org/10.1038/srep17747en
uws.contributor.affiliation1Faculty of Engineeringen
uws.contributor.affiliation2Department of Mechanical and Mechatronics Engineeringen
uws.contributor.affiliation2Waterloo Institute for Nanotechnology (WIN)en
uws.typeOfResourceTexten
uws.typeOfResourceTexten
uws.peerReviewStatusRevieweden
uws.scholarLevelFacultyen


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