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Influence of graphene oxide nanoparticles on the transport and cotransport of biocolloids in saturated porous media

Georgopoulou Maria, Syngouna Vasiliki, Chrysikopoulos Constantinos

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URIhttp://purl.tuc.gr/dl/dias/557620B1-4900-4B5D-A1DB-27746310A32E-
Identifierhttps://doi.org/10.1016/j.colsurfb.2020.110841-
Identifierhttps://www.sciencedirect.com/science/article/pii/S0927776520300710-
Languageen-
Extent8 pagesen
TitleInfluence of graphene oxide nanoparticles on the transport and cotransport of biocolloids in saturated porous mediaen
CreatorGeorgopoulou Mariaen
CreatorΓεωργοπουλου Μαριαel
CreatorSyngouna Vasilikien
CreatorΣυγγουνα Βασιλικηel
CreatorChrysikopoulos Constantinosen
CreatorΧρυσικοπουλος Κωνσταντινοςel
PublisherElsevieren
Content SummaryThis study examines the effect of graphene oxide (GO) nanoparticles (NPs) on the transport (individual species) and cotransport (simultaneous transport) of three biocolloids (Escherichia (E.) coli, Enterococcus (E.) faecalis and Staphylococcus (S.) aureus) in water saturated porous media. Flowthrough experiments were performed in 30-cm long laboratory columns packed with quartz sand. All of the experiments were conducted at room temperature (22 °C), pH = 7, and ionic strength Is = 2 mM. The results from the cotransport experiments indicated that the mass recovery values for all biocolloids, calculated based on total biocolloid concentration in the effluent, were reduced in the presence of GO NPs. The strains E. coli and E. faecalis were shown to be more vulnerable to GO NPs than S. aureus. Temporal moments of the breakthrough concentrations suggested that the presence of GO NPs significantly influenced the fate and transport of the three biocolloids. Extended DLVO theory was used to quantify the various interaction energy profiles, based on electrokinetic and hydrodynamic measurements.en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2021-08-30-
Date of Publication2020-
SubjectEscherichia colien
SubjectEnterococcus faecalisen
SubjectStaphylococcus aureusen
SubjectGraphene oxideen
SubjectQuartz sanden
SubjectCotransport in porous mediaen
Bibliographic CitationM. P. Georgopoulou, V. I. Syngouna, and C. V. Chrysikopoulos, “Influence of graphene oxide nanoparticles on the transport and cotransport of biocolloids in saturated porous media,” Colloid Surf. B-Biointerfaces, vol. 189, May 2020. doi: 10.1016/j.colsurfb.2020.110841en

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