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Application of Hierarchical Nanostructured WO3 and Fe2O3 Composites for Photodegradation of Surfactants in Water Samples

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dc.abstract.enThis study describes the utilization of hierarchical photoactive surface films for the decomposition of surfactants in water samples (with dierent pH). Photoactive films, containing tungsten (VI) oxide and iron (III) oxide (hematite), were deposited in a systematic and controlled manner using a layer-by-layer method. Physicochemical properties of the photoactive materials were developed and characterized using XRD analysis, Raman spectroscopy, water contact angle, voltammetry, and microscopic (SEM) techniques. The resulting multilayer films showed attractive performances in the photodegradation of the anionic surfactant sodium dodecyl sulfate (SDS) and the nonionic surfactant (1,1,3,3-tetramethylbutyl)phenyl-polyethylene glycol (Triton X-144) under solar light irradiation. The eciency of the surfactants’ photodegradation was evaluated with a “test” based on a method, which is extremely sensitive to surfactants’ interference, with trace analysis of Pb using anodic stripping voltammetry on mercury electrodes (recovery study). The usefulness of hierarchical photoactive systems in the photodegradation of both surfactants is demonstrated in the presence and absence of the applied bias voltage. The maximum decomposition times were 2–3 h and 30 min, respectively. Furthermore, a properly designed layer system may be proposed, matching the pH of the water sample (depending on the treatment on the sampling side).
dc.affiliationUniwersytet Warszawski
dc.contributor.authorMiecznikowski, Krzysztof
dc.contributor.authorGajewska, Sylwia
dc.contributor.authorKrasnodębska-Ostręga, Beata
dc.contributor.authorBiaduń, Ewa
dc.date.accessioned2024-01-24T16:54:44Z
dc.date.available2024-01-24T16:54:44Z
dc.date.copyright2019-01-19
dc.date.issued2019
dc.description.accesstimeAT_PUBLICATION
dc.description.financeNie dotyczy
dc.description.number12
dc.description.versionFINAL_PUBLISHED
dc.description.volume9
dc.identifier.doi10.3390/CATAL9121039
dc.identifier.issn2073-4344
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/101003
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofCatalysts
dc.relation.pages1039
dc.rightsCC-BY
dc.sciencecloudnosend
dc.subject.entungsten trioxide
dc.subject.eniron oxide
dc.subject.enphotocatalysts
dc.subject.enstripping voltammetry
dc.subject.ensolar light decomposition
dc.subject.ensurfactants
dc.titleApplication of Hierarchical Nanostructured WO3 and Fe2O3 Composites for Photodegradation of Surfactants in Water Samples
dc.typeJournalArticle
dspace.entity.typePublication