ALD coating of centrifugally spun polymeric fibers and postannealing: case study for nanotubular TiO2 photocatalyst

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dc.contributor.authorŘíhová, Martinacs
dc.contributor.authorYurkevich, Oksanacs
dc.contributor.authorMotola, Martincs
dc.contributor.authorHromádko, Luděkcs
dc.contributor.authorSpotz, Zdeněkcs
dc.contributor.authorZazpe Mendioroz, Raúlcs
dc.contributor.authorKnez, Matocs
dc.contributor.authorMacák, Jancs
dc.coverage.issue15cs
dc.coverage.volume3cs
dc.date.accessioned2021-12-14T15:55:54Z
dc.date.available2021-12-14T15:55:54Z
dc.date.issued2021-08-07cs
dc.description.abstractThis work describes the synthesis of highly photocatalytically active TiO2 tubes (TiTBs) by combining centrifugal spinning and atomic layer deposition (ALD). Poly(vinyl pyrrolidone) (PVP) fibers were first produced by centrifugal spinning and subsequently coated with TiO2 with various film thicknesses in a fluidized bed ALD reactor. After annealing of the TiO2 ALD coated PVP fibers, TiO2 tubes (TiTBs) with excellent textural properties and diameters in the range from approx. 170 to 430 nm were obtained. The morphology and structure of all TiTBs were investigated by scanning and transmission electron microscopy (SEM and TEM), X-ray diffraction (XRD), and Brunauer-Emmett-Teller analysis (BET). Liquid phase photocatalysis was conducted to determine the photocatalytic activity of the TiTBs. The photocatalytic activity of the TiTBs obtained after 50 TiO2 ALD cycles (degradation rate 0.123 min(-1)) was twice that of the reference TiO2 P25. The underlying reasons for the remarkable photocatalytic performance were textural properties of the resulting tubes along with suitable crystallinity, embedded within the 1D tubular morphology. The herein presented proof-of-concept approach paves a way for the processing of various polymeric fibers into various tubular nanostructures.en
dc.formattextcs
dc.format.extent4589-4596cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationNANOSCALE ADVANCES. 2021, vol. 3, issue 15, p. 4589-4596.en
dc.identifier.doi10.1039/d1na00288kcs
dc.identifier.issn2516-0230cs
dc.identifier.other172858cs
dc.identifier.urihttp://hdl.handle.net/11012/203222
dc.language.isoencs
dc.publisherRoyal Society of Chemistrycs
dc.relation.ispartofNANOSCALE ADVANCEScs
dc.relation.urihttps://pubs.rsc.org/en/content/articlelanding/2021/NA/D1NA00288Kcs
dc.rightsCreative Commons Attribution-NonCommercial 3.0 Unportedcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2516-0230/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc/3.0/cs
dc.subjectATOMIC LAYER DEPOSITIONen
dc.subjectCORE-SHELL NANOFIBERSen
dc.subjectPVP NANOFIBERSen
dc.subjectWALL THICKNESSen
dc.subjectZNOen
dc.subjectNANOSTRUCTURESen
dc.subjectNANOPARTICLESen
dc.subjectGROWTHen
dc.subjectFABRICATIONen
dc.subjectMECHANISMSen
dc.titleALD coating of centrifugally spun polymeric fibers and postannealing: case study for nanotubular TiO2 photocatalysten
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-172858en
sync.item.dbtypeVAVen
sync.item.insts2021.12.29 16:54:06en
sync.item.modts2021.12.29 16:15:10en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé nízkodimenzionální nanomateriálycs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Sdílená laboratoř RP1cs
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav materiálových věd a inženýrstvícs
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Pokročilé nízkodimenzionální nanomateriály
Ústav materiálových věd a inženýrství