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Statements

Subject Item
n2:RIV%2F60461373%3A22310%2F08%3A00020353%21RIV09-MSM-22310___
rdf:type
skos:Concept n17:Vysledek
dcterms:description
The present work deals with the photocatalytic properties of self-organized TiO2 nanotubes. The tubes were grown by anodic oxidation of titanium in fluoride containing electrolytes (1M Na2SO4 and H2SO4 with NaF or HF). The electrochemical treatment consisted of a potential ramp (100 mV/s) from open-circuit potential to 20 V, followed by holding at a constant potential of 20 V for 2 hours. Tubes have a diameter of approx. 100 nm, wall thickness of 15 nm and length of 500 nm (?short? nanotubes ? Fig.1a) and 2500 nm (?long? nanotubes ? Fig. 1b). The samples of nanotubes layers were annealed in air at 450 °C to form anatase. For comparison compact TiO2 films (prepared by anodic oxidation in 1 M H2SO4) and porous particulate P25 films were used. Práce se zabývala fotokatalytickými vlastnostmi nanotrubiček TiO2. Trubičky vyrostly během anodické oxidace titanu v elektrolytu kontaminovaném fluoridy. Trubičky mají průměr okolo 100 nm, tloušťka stěn okolo 15 nm a délka okolo 500 a 2500 nm. Vzorky nanotrubiček byly vypalovány na vzduchu při teplotě 450 °C, získaná krystalografická struktura byl následně anatas. Vlastnosti vrstev byly zjišťovány v porovnání s kompaktními TiO2 filmy a porézními částicovými vrstvami TiO2. The present work deals with the photocatalytic properties of self-organized TiO2 nanotubes. The tubes were grown by anodic oxidation of titanium in fluoride containing electrolytes (1M Na2SO4 and H2SO4 with NaF or HF). The electrochemical treatment consisted of a potential ramp (100 mV/s) from open-circuit potential to 20 V, followed by holding at a constant potential of 20 V for 2 hours. Tubes have a diameter of approx. 100 nm, wall thickness of 15 nm and length of 500 nm (?short? nanotubes ? Fig.1a) and 2500 nm (?long? nanotubes ? Fig. 1b). The samples of nanotubes layers were annealed in air at 450 °C to form anatase. For comparison compact TiO2 films (prepared by anodic oxidation in 1 M H2SO4) and porous particulate P25 films were used.
dcterms:title
Fotokatalytické vlastnosti nanotrubiček TiO2 Photocatalytic properties of self-organized titanium dioxide nanotubes Photocatalytic properties of self-organized titanium dioxide nanotubes
skos:prefLabel
Photocatalytic properties of self-organized titanium dioxide nanotubes Fotokatalytické vlastnosti nanotrubiček TiO2 Photocatalytic properties of self-organized titanium dioxide nanotubes
skos:notation
RIV/60461373:22310/08:00020353!RIV09-MSM-22310___
n3:aktivita
n15:P
n3:aktivity
P(1M0577)
n3:dodaniDat
n14:2009
n3:domaciTvurceVysledku
n21:3910245
n3:druhVysledku
n19:D
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n8:predkladatel
n3:idSjednocenehoVysledku
386522
n3:idVysledku
RIV/60461373:22310/08:00020353
n3:jazykVysledku
n20:eng
n3:klicovaSlova
photocatalysis; nanotubes; titanium dioxide; acid orange 7
n3:klicoveSlovo
n7:nanotubes n7:acid%20orange%207 n7:photocatalysis n7:titanium%20dioxide
n3:kontrolniKodProRIV
[1592AA02AD07]
n3:mistoKonaniAkce
Gabčíkovo
n3:mistoVydani
Bratislava
n3:nazevZdroje
Zborník príspevkov Pokroky v anorganickej technologii
n3:obor
n5:CH
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
4
n3:projekt
n13:1M0577
n3:rokUplatneniVysledku
n14:2008
n3:tvurceVysledku
Zlámal, M. Schmuki, P. Krýsa, Josef Macák, M.
n3:typAkce
n4:EUR
n3:zahajeniAkce
2008-05-20+02:00
s:numberOfPages
2
n9:hasPublisher
Slovenská technická univerzita v Bratislave
n18:isbn
978-80-227-2866-9
n6:organizacniJednotka
22310