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Atmospheric plasma sprayed (APS) coatings of Al2O3–TiO2 system for photocatalytic application

SYSNO ASEP	0335880
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Atmospheric plasma sprayed (APS) coatings of Al2O3–TiO2 system for photocatalytic application
Title	Plazmové nástřiky na bázi Al2O3-TiO2 pro fotokatalytické aplikace
Author(s)	Štengl, Václav (UACH-T)_{RID, ORCID, SAI} Ageorges, H. (FR) Ctibor, Pavel (UFP-V)_{RID, ORCID} Murafa, Nataliya (UACH-T)_{RID, SAI}
Source Title	Photochemical & Photobiological Sciences - ISSN 1474-905X Roč. 8, č. 5 (2009), s. 733-738
Number of pages	6 s.
Publication form	web - web
Action	European Meeting on Solar Chemistry and Photocatalysis:Environmental Applications /5th./
Event date	04.10.2008-08.10.2008
VEvent location	Palermo
Country	IT - Italy
Event type	EUR
Language	eng - English
Country	FR - France
Keywords	Alumina ; titania ; plasma spraying ; reflectivity ; bangap ; phase composition
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	AV0Z40320502 - UACH-T (2005-2011)
	AV0Z20430508 - UFP-V (2005-2011)
UT WOS	000265890300024
DOI	10.1039/b817199h
Annotation	The goal of this study is to examine the photocatalytic ability of coatings produced by atmospheric plasma spraying (APS). The plasma gun used is a common gas-stabilized plasma gun (GSP) working with a d.c. current and a mixture of argon and hydrogen as plasma-forming gas. The TiO2 powders are particles of about 100 nm which were agglomerated to a mean size of about 55 mm, suitable for spraying. Composition of the commercial powder is 13 wt% of TiO2 in Al2O3, whereas also in-house prepared powder with the same nominal composition but with agglomerated TiO2 and conventional fused and crushed Al2O3 was sprayed. The feedstock materials used for this purpose are alpha-alumina and anatase titanium dioxide. The coatings are analyzed by scanning electron microscopy (SEM), energy dispersion probe (EDS) and X-ray diffraction. Photocatalytic degradation of acetone is quantified for various coatings. All plasma sprayed coatings show a lamellar structure on cross section, as typical.
Workplace	Institute of Plasma Physics
Contact	Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975
Year of Publishing	2010

Number of the records: 1