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dc.contributor.authorRadecka, M.-
dc.contributor.authorRekas, M.-
dc.contributor.authorKusior, E.-
dc.contributor.authorZakrzewska, K.-
dc.contributor.authorHeel, Andre-
dc.contributor.authorMichalow, K. A.-
dc.contributor.authorGraule, T.-
dc.date.accessioned2018-08-20T14:31:45Z-
dc.date.available2018-08-20T14:31:45Z-
dc.date.issued2010-
dc.identifier.issn1533-4899de_CH
dc.identifier.issn1533-4880de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/9276-
dc.description.abstractTiO2-based nanopowders are elaborated by flame spray synthesis, FSS from organic precursors of titanium and chromium with the Cr content changing from 0 to 15 at.%. Well-crystallized nanopowders with high specific surface area SSA reaching 107 m2/g for undoped TiO2 and 177 m2/g for TiO2+15 at.% Cr are obtained. Thin films are deposited by rf reactive sputtering from metallic Ti and Ti-Cr targets in Ar+O2 flow controlled atmosphere. The adjustable area of Cr/Ti allows to obtain up to 16 at.% Cr in TiO2 thin films. X-ray diffraction, transmission electron spectroscopy, TEM, atomic force microscopy, AFM and optical spectrophotometry over the ultraviolet UV and visible VIS range of the light spectrum have been performed in order to characterize the nanomaterials. The particle size of nanopowders is within the range of 5-42 nm. Anatase is the predominating polymorphic form while the amount of rutile increases with Cr content to reach of about 25 wt.% at 15 at.% Cr. The post-deposition annealing of thin films in air at temperatures from 770 K to 1280 K modifies the phase composition, leads to irreversible transformation from anatase to rutile and affects the surface roughness. Structural and optical properties of TiO2-based nanopowders and thin films are compared. The effect of grain size and the level of chromium doping on the band gap Eg is discussed. Photocatalytic activity of the nanopowders is tested for degradation of methylene blue, MB.de_CH
dc.language.isoende_CH
dc.publisherAmerican Scientific Publishersde_CH
dc.relation.ispartofJournal of Nanoscience and Nanotechnologyde_CH
dc.rightsLicence according to publishing contractde_CH
dc.subjectTiO2de_CH
dc.subjectNanopowdersde_CH
dc.subjectThin filmsde_CH
dc.subjectBand gapde_CH
dc.subjectPhotocatalysisde_CH
dc.subject.ddc540: Chemiede_CH
dc.titleTiO2-based nanopowders and thin films for photocatalytical applicationsde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitute of Materials and Process Engineering (IMPE)de_CH
dc.identifier.doi10.1166/jnn.2010.1865de_CH
zhaw.funding.euNode_CH
zhaw.issue2de_CH
zhaw.originated.zhawNode_CH
zhaw.pages.end1042de_CH
zhaw.pages.start1032de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume10de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.webfeedProzesstechnikde_CH
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Radecka, M., Rekas, M., Kusior, E., Zakrzewska, K., Heel, A., Michalow, K. A., & Graule, T. (2010). TiO2-based nanopowders and thin films for photocatalytical applications. Journal of Nanoscience and Nanotechnology, 10(2), 1032–1042. https://doi.org/10.1166/jnn.2010.1865
Radecka, M. et al. (2010) ‘TiO2-based nanopowders and thin films for photocatalytical applications’, Journal of Nanoscience and Nanotechnology, 10(2), pp. 1032–1042. Available at: https://doi.org/10.1166/jnn.2010.1865.
M. Radecka et al., “TiO2-based nanopowders and thin films for photocatalytical applications,” Journal of Nanoscience and Nanotechnology, vol. 10, no. 2, pp. 1032–1042, 2010, doi: 10.1166/jnn.2010.1865.
RADECKA, M., M. REKAS, E. KUSIOR, K. ZAKRZEWSKA, Andre HEEL, K. A. MICHALOW und T. GRAULE, 2010. TiO2-based nanopowders and thin films for photocatalytical applications. Journal of Nanoscience and Nanotechnology. 2010. Bd. 10, Nr. 2, S. 1032–1042. DOI 10.1166/jnn.2010.1865
Radecka, M., M. Rekas, E. Kusior, K. Zakrzewska, Andre Heel, K. A. Michalow, and T. Graule. 2010. “TiO2-Based Nanopowders and Thin Films for Photocatalytical Applications.” Journal of Nanoscience and Nanotechnology 10 (2): 1032–42. https://doi.org/10.1166/jnn.2010.1865.
Radecka, M., et al. “TiO2-Based Nanopowders and Thin Films for Photocatalytical Applications.” Journal of Nanoscience and Nanotechnology, vol. 10, no. 2, 2010, pp. 1032–42, https://doi.org/10.1166/jnn.2010.1865.


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