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Atmospheric plasma sprayed (APS) coatings of Al2O3–13%TiO2 for photocatalytic application
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SYSNO ASEP 0336123 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Atmospheric plasma sprayed (APS) coatings of Al2O3–13%TiO2 for photocatalytic application Title Plazmové nástřiky Al2O3-13%TiO2 pro fotokatalytické aplikace Author(s) Ctibor, Pavel (UFP-V) RID, ORCID
Štengl, Václav (UACH-T) RID, ORCID, SAI
Neufuss, Karel (UFP-V) RIDSource Title Journées Européennes de la PhotocatalyseJEP 2009. - Trollhattan : Cité Mondiale- Bordeaux, 2009 / Lacombe S. - ISBN N Pages s. 32-35 Number of pages 4 s. Publication form web - web Action Journées Européennes de la PhotocatalyseJEP 2009 Event date 21.09.2009-22.09.2009 VEvent location Bordeaux Country FR - France Event type EUR Language eng - English Country SE - Sweden Keywords Alumina ; titania ; plasma spraying ; bangap ; rate constant Subject RIV JK - Corrosion ; Surface Treatment of Materials R&D Projects IAAX00430803 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z20430508 - UFP-V (2005-2011) AV0Z40320502 - UACH-T (2005-2011) Annotation The goal of this study is to examine a photocatalytic ability of coatings produced by Atmospheric Plasma Spraying (APS). The plasma gun used is Water-Stabilized Plasma gun (WSP) working with a d.c. current and water as plasma forming medium. The Al2O3-TiO2 powders are conventional fused and crushed feedstocks as well as other type of about 100 nm particles agglomerated to mean size of about 100 µm, suitable for spraying. Composition of the commercial powders is 13 wt% of TiO2 in Al2O3 whereas also an in-house prepared powder with the same nominal composition but with fine TiO2 adhering on a surface of fused & crushed Al2O3 was sprayed. The feedstock materials used for this purpose are composed of -alumina and anatase titanium dioxide. The coatings are analyzed by scanning electron microscopy (SEM), energy dispersion probe (EDS) and X-ray diffraction. Kinetics of the photocatalytic degradation of acetone is measured on sprayed coatings by using a self-designed photoreactor. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2010
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