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

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Zinc-bismuth oxide-peroxide (ZnOZnO2Bi2O3) 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 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 degrees C increased the photocatalytic activity, mainly in the visible region. Zinc-bismuth oxide-peroxide (ZnOZnO2Bi2O3) 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 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 degrees 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/61388980:_____/15:00442369!RIV15-TA0-61388980
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(TA02010541)
http://linked.open...iv/cisloPeriodika	Part A
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Tolasz, Jakub Slušná, Michaela Štengl, Václav Henych, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav anorganické chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	528
http://linked.open...ai/riv/idVysledku	RIV/61388980:_____/15:00442369
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Zinc oxide; Photocatalysis; Bi3+ doping (en)
http://linked.open.../riv/klicoveSlovo	Photocatalysis Bi3+ doping Zinc oxide
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[E3689FEDF8DA]
http://linked.open...i/riv/nazevZdroje	Powder Technology
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	4 (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	2015
http://linked.open...v/svazekPeriodika	270
http://linked.open...iv/tvurceVysledku	Štengl, Václav Henych, Jiří Slušná, Michaela Tolasz, Jakub Zetková, K.
http://linked.open...ain/vavai/riv/wos	000347579300009
issn	0032-5910
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.powtec.2014.09.047

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