Number of the records: 1
Titanium dioxide coatings sprayed by a water stabilized plasma gun (WSP) with argon and nitrogen as the powder feeding gas: differences in structural, mechanical and photocatalytic behavior
- 1.
SYSNO ASEP 0365811 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Titanium dioxide coatings sprayed by a water stabilized plasma gun (WSP) with argon and nitrogen as the powder feeding gas: differences in structural, mechanical and photocatalytic behavior Author(s) Ctibor, Pavel (UFP-V) RID, ORCID
Pala, Zdeněk (UFP-V) RID
Neufuss, Karel (UFP-V) RID
Štengl, Václav (UACH-T) RID, ORCID, SAI
Píš, I. (CZ)
Zahoranová, T. (CZ)
Nehasil, V. (CZ)Source Title DVS-Berichte Volume 276 ( Proceedings of the International thermal spray conference 2011), 276. - Düsseldorf : DVS-German Welding Society, 2011 - ISBN 978-3-87155-268-7 Pages s. 672-678 Number of pages 6 s. Publication form flash disk - flash disk Action International thermal spray conference 2011 Event date 27.09.2011-29.09.2011 VEvent location Hamburg Country DE - Germany Event type WRD Language eng - English Country DE - Germany Keywords Plasma spraying, titanium oxide ; bandgap ; mechanical testing ; XPS ; photocatalysis Subject RIV JH - Ceramics, Fire-Resistant Materials and Glass CEZ AV0Z20430508 - UFP-V (2005-2011) AV0Z40320502 - UACH-T (2005-2011) Annotation Titanium dioxide coatings were sprayed by a water stabilized plasma gun (WSP) to form robust self-supporting bodies with a photocatalytically active surface. In one case argon was used as a powder-feeding as well as coating-cooling gas whereas in the other case nitrogen was used. Deposits were studied by XRD, HR-TEM, XPS, Raman spectroscopy, UV-VIS spectrophotometry and photocatalytic tests. Majority of the tests was done at the surface as well as at the bottom side representing the contact surface with the substrate during the spray process. Porosity was studied by image analysis on polished cross sections where also microhardness was measured. Dominant phase present in the sprayed samples was rutile whereas anatase was the main minor component. Hydrogen content in the nitrogen-assisted coating was higher, but the character of the optical absorption edge remained the same for both samples. Photoelectron spectroscopy revealed differences in the character of O 1s peak between both... Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2012
Number of the records: 1