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Statements

Subject Item
n2:RIV%2F61388980%3A_____%2F15%3A00442369%21RIV15-TA0-61388980
rdf:type
skos:Concept n16:Vysledek
dcterms: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 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 (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 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.
dcterms:title
ZnO/Bi2O3 nanowire composites as a new family of photocatalysts ZnO/Bi2O3 nanowire composites as a new family of photocatalysts
skos:prefLabel
ZnO/Bi2O3 nanowire composites as a new family of photocatalysts ZnO/Bi2O3 nanowire composites as a new family of photocatalysts
skos:notation
RIV/61388980:_____/15:00442369!RIV15-TA0-61388980
n3:aktivita
n4:P n4:I
n3:aktivity
I, P(TA02010541)
n3:cisloPeriodika
Part A
n3:dodaniDat
n8:2015
n3:domaciTvurceVysledku
n13:7549393 n13:5854873 n13:1373854 n13:6722423
n3:druhVysledku
n6:J
n3:duvernostUdaju
n10:S
n3:entitaPredkladatele
n12:predkladatel
n3:idSjednocenehoVysledku
528
n3:idVysledku
RIV/61388980:_____/15:00442369
n3:jazykVysledku
n17:eng
n3:klicovaSlova
Zinc oxide; Photocatalysis; Bi3+ doping
n3:klicoveSlovo
n11:Zinc%20oxide n11:Photocatalysis n11:Bi3%2B%20doping
n3:kodStatuVydavatele
CH - Švýcarská konfederace
n3:kontrolniKodProRIV
[E3689FEDF8DA]
n3:nazevZdroje
Powder Technology
n3:obor
n15:CA
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
5
n3:projekt
n7:TA02010541
n3:rokUplatneniVysledku
n8:2015
n3:svazekPeriodika
270
n3:tvurceVysledku
Zetková, K. Tolasz, Jakub Slušná, Michaela Henych, Jiří Štengl, Václav
n3:wos
000347579300009
s:issn
0032-5910
s:numberOfPages
9
n14:doi
10.1016/j.powtec.2014.09.047