N-La/TiO2 Anatase-Brookite prepared by pressurized hot and supercritical fluids: On preparation, microstructure and photoactivity in azo-dye Acid Orange 7 photodegradation
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F19%3A10242228" target="_blank" >RIV/61989100:27710/19:10242228 - isvavai.cz</a>
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
N-La/TiO2 Anatase-Brookite prepared by pressurized hot and supercritical fluids: On preparation, microstructure and photoactivity in azo-dye Acid Orange 7 photodegradation
Popis výsledku v původním jazyce
Abstract - The aim of our work is preparation of the N-La/TiO2 photocatalyst (with similarly constant low N and La loading) by the same sol-gel method as Dubnová et al., 2019, but its crystallization under pressurized hot water and pressurized hot/supercritical methanol. The effect of conditions of pressuzied hot/supercitical fluid crystallization (the water amount used for crystallization 1-2 L, processing temperature in the range of 25-250oC, processing pressure in the range of 10-30 MPa) on the purity, micro/structure, textural, optical and surface properties is evaluated. The physico-chemical properties of the N-La/TiO2 photocatalyst are further correlated to the photoactivity of N-La/TiO2 photocatalyst in azo-dye Acid Orange 7 photodegradation under 365 nm UV-light. The crystallization conditions are optimized in order to prepare the most photoactive N-La/TiO2 anatase-brookite photocatalyst which is further compared to pristine TiO2, N/TiO2 and La/TiO2 photocatalysts.
Název v anglickém jazyce
N-La/TiO2 Anatase-Brookite prepared by pressurized hot and supercritical fluids: On preparation, microstructure and photoactivity in azo-dye Acid Orange 7 photodegradation
Popis výsledku anglicky
Abstract - The aim of our work is preparation of the N-La/TiO2 photocatalyst (with similarly constant low N and La loading) by the same sol-gel method as Dubnová et al., 2019, but its crystallization under pressurized hot water and pressurized hot/supercritical methanol. The effect of conditions of pressuzied hot/supercitical fluid crystallization (the water amount used for crystallization 1-2 L, processing temperature in the range of 25-250oC, processing pressure in the range of 10-30 MPa) on the purity, micro/structure, textural, optical and surface properties is evaluated. The physico-chemical properties of the N-La/TiO2 photocatalyst are further correlated to the photoactivity of N-La/TiO2 photocatalyst in azo-dye Acid Orange 7 photodegradation under 365 nm UV-light. The crystallization conditions are optimized in order to prepare the most photoactive N-La/TiO2 anatase-brookite photocatalyst which is further compared to pristine TiO2, N/TiO2 and La/TiO2 photocatalysts.
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
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OECD FORD obor
20400 - Chemical engineering
Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2019
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů