About: Photoactivity of brookite-rutile TiO(2) nanocrystalline mixtures obtained by heat treatment of hydrothermally prepared brookite

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About: Photoactivity of brookite-rutile TiO(2) nanocrystalline mixtures obtained by heat treatment of hydrothermally prepared brookite Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Pure brookite phase was prepared by hydrothermal synthesis of titanium peroxo-complex in the presence of glycolic acid at 220 degrees C. The structure of prepared brookite samples was determined by X-ray powder diffraction (XRD) and selected area electron diffraction (SAED). The prepared brookite was studied by in situ high temperature XRD in air. The morphology and microstructure characteristics were also obtained by transmission electron microscopy (TEM). The nitrogen adsorption-desorption was used for determination of surface area (BET) and porosity. The method of UV-vis diffuse reflectance spectroscopy was employed to estimate band-gap energies of prepared brookite. The photocatalytic activity of the prepared titania samples were assessed by photocatalytic decomposition of Orange II dye in an aqueous slurry under UV irradiation at 365 nm wavelength. The photocatalytic activity of the prepared sample brookite heated to 800 degrees C in air was higher than nanocrystalline unheated brookite powder. Pure brookite phase was prepared by hydrothermal synthesis of titanium peroxo-complex in the presence of glycolic acid at 220 degrees C. The structure of prepared brookite samples was determined by X-ray powder diffraction (XRD) and selected area electron diffraction (SAED). The prepared brookite was studied by in situ high temperature XRD in air. The morphology and microstructure characteristics were also obtained by transmission electron microscopy (TEM). The nitrogen adsorption-desorption was used for determination of surface area (BET) and porosity. The method of UV-vis diffuse reflectance spectroscopy was employed to estimate band-gap energies of prepared brookite. The photocatalytic activity of the prepared titania samples were assessed by photocatalytic decomposition of Orange II dye in an aqueous slurry under UV irradiation at 365 nm wavelength. The photocatalytic activity of the prepared sample brookite heated to 800 degrees C in air was higher than nanocrystalline unheated brookite powder. (en)
Title	Photoactivity of brookite-rutile TiO(2) nanocrystalline mixtures obtained by heat treatment of hydrothermally prepared brookite Photoactivity of brookite-rutile TiO(2) nanocrystalline mixtures obtained by heat treatment of hydrothermally prepared brookite (en)
skos:prefLabel	Photoactivity of brookite-rutile TiO(2) nanocrystalline mixtures obtained by heat treatment of hydrothermally prepared brookite Photoactivity of brookite-rutile TiO(2) nanocrystalline mixtures obtained by heat treatment of hydrothermally prepared brookite (en)
skos:notation	RIV/61388980:_____/11:00372195!RIV12-AV0-61388980
http://linked.open...avai/predkladatel	Ústav anorganické chemie AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA203/08/0334), Z(AV0Z40320502), Z(AV0Z40500505)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Štengl, Václav
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	220222
http://linked.open...ai/riv/idVysledku	RIV/61388980:_____/11:00372195
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	oxides; heat treatment; titania; photocatalysis (en)
http://linked.open.../riv/klicoveSlovo	oxides photocatalysis heat treatment titania
http://linked.open...odStatuVydavatele	CN - Čínská lidová republika
http://linked.open...ontrolniKodProRIV	[81BE4F9E7235]
http://linked.open...i/riv/nazevZdroje	Materials Chemistry and Physics
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Photocatalytic materials for destruction warfare agents
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	129
http://linked.open...iv/tvurceVysledku	Štengl, Václav Králová, Daniela
http://linked.open...ain/vavai/riv/wos	000294092500022
http://linked.open...n/vavai/riv/zamer	Design, syntéza a charakterizace klastrů, kompozitů, komplexů a dalších sloučenin na bázi anorganických látek; mechanismy a kinetika jejich interakcí Progresivní makromolekulární materiály a supramolekulární systémy: syntéza a studium vlastností, jevů a možností využití pro speciální aplikace a moderní technologie
issn	0254-0584
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.matchemphys.2011.05.006
is http://linked.open...avai/riv/vysledek of	Photoactivity of brookite-rutile TiO(2) nanocrystalline mixtures obtained by heat treatment of hydrothermally prepared brookite Photoactivity of brookite-rutile TiO(2) nanocrystalline mixtures obtained by heat treatment of hydrothermally prepared brookite

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