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Photocatalytic inhibition of bacteria by TiO2 nanotubes-doped polyethylene composites

dc.contributor.authorYañez D.
dc.contributor.authorGuerrero S.
dc.contributor.authorLieberwirth I.
dc.contributor.authorUlloa M.T.
dc.contributor.authorGomez T.
dc.contributor.authorRabagliati F.M.
dc.contributor.authorZapata P.A.
dc.date.accessioned2020-09-02T22:30:36Z
dc.date.available2020-09-02T22:30:36Z
dc.date.issued2015
dc.identifier10.1016/j.apcata.2014.10.051
dc.identifier.citation489, 1, 255-261
dc.identifier.issn0926860X
dc.identifier.urihttps://hdl.handle.net/20.500.12728/6646
dc.descriptionPolyethylene (PE) and polyethylene-octadecene (LLDPE) composites containing titanium dioxide nanotubes were synthesized and applied to the inhibition of selected bacteria. It was found that polymerization rate of the polymerizations increased with the incorporation of the octadecene compared with bare ethylene, while with modified nanotubes (O-TiO2-Ntbs) the catalytic activity showed a slight decrease compared with the pure polymer. Regarding physical properties, the melting temperature and cristallinity of PE was higher than LLDPE. LLDPE presented lower rigidity than PE and thus lower Young's modulus. On the other hand, with the incorporation of nanotubes, Young's modulus did not change significantly with respect to PE. After 2h of contact, the PE/O-TiO2-Ntbs composite showed a reduction of Escherichia coli of 36.7% under no UVA irradiations. In contrast, LLDPE/O-TiO2-Ntbs showed 63.5%. The photocatalytic reduction (under UVA light) was much higher and after 60min the LLDPE/O-TiO2-Ntbs composites showed a bacterial reduction of 99.9%, whereas the PE/O-TiO2-Ntbs showed 42.6% of catalytic reduction. © 2014 Elsevier B.V. All rights reserved.
dc.language.isoen
dc.publisherElsevier B.V.
dc.subjectNanocomposites
dc.subjectPhotocatalytic inhibition
dc.subjectPolyethylene
dc.subjectTiO2 nanotubes
dc.subjectBacteria
dc.subjectCatalyst activity
dc.subjectElastic moduli
dc.subjectEscherichia coli
dc.subjectEthylene
dc.subjectNanocomposites
dc.subjectNanotubes
dc.subjectPolyethylenes
dc.subjectPolymerization
dc.subjectPolymers
dc.subjectBacterial reduction
dc.subjectCatalytic reduction
dc.subjectPhoto-catalytic
dc.subjectPhotocatalytic reduction
dc.subjectPolyethylene composites
dc.subjectPolymerization rates
dc.subjectTiO
dc.subjectTitanium dioxide nanotubes
dc.subjectYarn
dc.titlePhotocatalytic inhibition of bacteria by TiO2 nanotubes-doped polyethylene composites
dc.typeArticle


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