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Statements

Subject Item
n2:RIV%2F00216305%3A26620%2F14%3APU110942%21RIV15-MSM-26620___
rdf:type
skos:Concept n16:Vysledek
dcterms:description
Ln-doped TiO2 nanoparticles (Ln = Pr, Dy, Sm) were prepared by the sol-gel low-temperature reaction of titanium tetraisopropoxide with aqueous solutions of organic acid and lanthanide salts. Reaction was carried out with 0.3%, 0.5% and 0.7% lanthanide ions in acidic solution at 100 grdC for 10 hours. XRD analysis revealed the content of crystalline phase of anatase and brookite. Prepared nanoparticles contained crystallites ranging in size from 2.0 to 5.0 nm. Specific surface area of Ln-doped TiO2 ranged from 210-250 m2/g. Differential photocatalytic activity of titania nanoparticles was evaluated at photocatalytic water splitting (of 20% aqueous solution of methanol) in batch quartz reactor. The hydrogen content in the gas phase was measured by mass spectrometry. Co-catalyst, 0.5% of Pt, was deposited on the surface of titania by photochemical method. It was found that the higher photocatalytic activity had sample with 0.7% of Dy and its photoactivity was increased with the content of dysprosium ions Ln-doped TiO2 nanoparticles (Ln = Pr, Dy, Sm) were prepared by the sol-gel low-temperature reaction of titanium tetraisopropoxide with aqueous solutions of organic acid and lanthanide salts. Reaction was carried out with 0.3%, 0.5% and 0.7% lanthanide ions in acidic solution at 100 grdC for 10 hours. XRD analysis revealed the content of crystalline phase of anatase and brookite. Prepared nanoparticles contained crystallites ranging in size from 2.0 to 5.0 nm. Specific surface area of Ln-doped TiO2 ranged from 210-250 m2/g. Differential photocatalytic activity of titania nanoparticles was evaluated at photocatalytic water splitting (of 20% aqueous solution of methanol) in batch quartz reactor. The hydrogen content in the gas phase was measured by mass spectrometry. Co-catalyst, 0.5% of Pt, was deposited on the surface of titania by photochemical method. It was found that the higher photocatalytic activity had sample with 0.7% of Dy and its photoactivity was increased with the content of dysprosium ions
dcterms:title
Photocatalytic water splitting by Ln-doped TiO2 (Ln = Pr, Dy, Sm) Photocatalytic water splitting by Ln-doped TiO2 (Ln = Pr, Dy, Sm)
skos:prefLabel
Photocatalytic water splitting by Ln-doped TiO2 (Ln = Pr, Dy, Sm) Photocatalytic water splitting by Ln-doped TiO2 (Ln = Pr, Dy, Sm)
skos:notation
RIV/00216305:26620/14:PU110942!RIV15-MSM-26620___
n3:aktivita
n11:S n11:P
n3:aktivity
P(ED1.1.00/02.0068), P(LD12004), S
n3:dodaniDat
n6:2015
n3:domaciTvurceVysledku
n4:3338371 n4:2422832 n4:6738443 n4:1662198
n3:druhVysledku
n12:O
n3:duvernostUdaju
n7:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
36475
n3:idVysledku
RIV/00216305:26620/14:PU110942
n3:jazykVysledku
n15:eng
n3:klicovaSlova
biphasic titania, Ln-doped TiO2, brookite-anatase system, photolytic water splitting
n3:klicoveSlovo
n5:photolytic%20water%20splitting n5:biphasic%20titania n5:Ln-doped%20TiO2 n5:brookite-anatase%20system
n3:kontrolniKodProRIV
[F91D7328D783]
n3:obor
n13:CA
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:projekt
n10:LD12004 n10:ED1.1.00%2F02.0068
n3:rokUplatneniVysledku
n6:2014
n3:tvurceVysledku
Cihlář, Jaroslav Kašpárek, Vít Částková, Klára Králová, Marcela
n17:organizacniJednotka
26620