About: ZnO/Bi2O3 nanowire composites as a new family of photocatalysts

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About: ZnO/Bi2O3 nanowire composites as a new family of photocatalysts Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Zinc–bismuth oxide–peroxide (ZnO* ZnO2 * Bi2O3) nanorod-like particles were prepared for photocatalytic application by the thermal hydrolysis of a zinc–peroxyl-complex precursor. Bi3 + doping has a strong effect on the morphological structure of the resulting product: lower Bi3 + concentrations preferentially form nanorods, whereas higher Bi3 + concentrations preferentially form a flower-like morphology. The synthesised samples of zinc–bismuth oxide–peroxides were examined by X-ray diffraction, Raman spectroscopy, UV–Vis diffuse reflectance spectroscopy, scanning electron microscopy and nitrogen adsorption–desorption isotherm analysis. Electron spin resonance (ESR) was used to monitor the hydroxyl radicals HO* radical dot on the zinc surfaces. The photocatalytic activity of the prepared samples was determined under the photocatalytic decomposition of Orange II dye in an aqueous slurry under UV or visible light irradiation. The best photocatalytic activity was achieved for the sample denoted ZnP175Bi_400, which includes 45.4 wt.% Bi2O3. The annealing of the samples at 400 °C increased the photocatalytic activity, mainly in the visible region. Zinc–bismuth oxide–peroxide (ZnO* ZnO2 * Bi2O3) nanorod-like particles were prepared for photocatalytic application by the thermal hydrolysis of a zinc–peroxyl-complex precursor. Bi3 + doping has a strong effect on the morphological structure of the resulting product: lower Bi3 + concentrations preferentially form nanorods, whereas higher Bi3 + concentrations preferentially form a flower-like morphology. The synthesised samples of zinc–bismuth oxide–peroxides were examined by X-ray diffraction, Raman spectroscopy, UV–Vis diffuse reflectance spectroscopy, scanning electron microscopy and nitrogen adsorption–desorption isotherm analysis. Electron spin resonance (ESR) was used to monitor the hydroxyl radicals HO* radical dot on the zinc surfaces. The photocatalytic activity of the prepared samples was determined under the photocatalytic decomposition of Orange II dye in an aqueous slurry under UV or visible light irradiation. The best photocatalytic activity was achieved for the sample denoted ZnP175Bi_400, which includes 45.4 wt.% Bi2O3. The annealing of the samples at 400 °C increased the photocatalytic activity, mainly in the visible region. (en)
Title	ZnO/Bi2O3 nanowire composites as a new family of photocatalysts ZnO/Bi2O3 nanowire composites as a new family of photocatalysts (en)
skos:prefLabel	ZnO/Bi2O3 nanowire composites as a new family of photocatalysts ZnO/Bi2O3 nanowire composites as a new family of photocatalysts (en)
skos:notation	RIV/46504711:_____/14:#0000354!RIV15-TA0-46504711
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(TA02010541)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Zetková, Kateřina
http://linked.open.../riv/druhVysledku	O - Ostatní výsledky nezařaditelné do žádného z výše uvedených druhů výsledku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	SYNPO, akciová společnost
http://linked.open...dnocenehoVysledku	57709
http://linked.open...ai/riv/idVysledku	RIV/46504711:_____/14:#0000354
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	zinc, bismuth oxide, peroxide, photocatalytic (en)
http://linked.open.../riv/klicoveSlovo	zinc bismuth oxide photocatalytic peroxide
http://linked.open...ontrolniKodProRIV	[0EDD810399AB]
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Progressive technology of multifunctional nanoparticles of zinc oxide
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Zetková, Kateřina Štengl, Václav Henych, Jiří Slušná, Michaela Tolasz, Jakub

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