Photocatalytic decomposition of methanol-water solution over N-La/TiO2 photocatalysts
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F19%3A39914521" target="_blank" >RIV/00216275:25310/19:39914521 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/61989100:27710/19:10240283
Výsledek na webu
<a href="https://www.sciencedirect.com/science/article/pii/S0169433218331659?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0169433218331659?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apsusc.2018.11.098" target="_blank" >10.1016/j.apsusc.2018.11.098</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Photocatalytic decomposition of methanol-water solution over N-La/TiO2 photocatalysts
Popis výsledku v původním jazyce
Manuscript focuses on the role of N-doping on photocatalytic behaviour of N-La/TiO2 materials in decomposition of methanol-water solution. N-La/TiO2 materials were prepared with approximately the same amounts of La (0.14-0.16 wt%) and different amounts of N (0.33-0.97 at. % of surface nitrogen). Addition of small amount of surface nitrogen significantly increased the amount of hydrogen produced for N-La/TiO2 photocatalysts in contrast to TiO2 and La/TiO2. The chemical composition (XRF, AAS, XPS), structural (XRD, Raman, XPS, TEM), textural (N-2-adsorption) and optical properties (DRS) were studied. N-La/TiO2 materials showed approximately the same specific surface area and crystallite size, with values ranging for La/TiO2 and N/TiO2 photocatalysts. For studied N-La/TiO2 photocatalysts, the photocatalytic activity increased with the increasing amount of surface nitrogen (interstitial positions, XPS), and subsequently with increasing amount of oxygen vacancies (Raman spectroscopy) and decreasing amount of surface oxygen species (surface lattice O species and hydroxyl groups evidenced by XPS).
Název v anglickém jazyce
Photocatalytic decomposition of methanol-water solution over N-La/TiO2 photocatalysts
Popis výsledku anglicky
Manuscript focuses on the role of N-doping on photocatalytic behaviour of N-La/TiO2 materials in decomposition of methanol-water solution. N-La/TiO2 materials were prepared with approximately the same amounts of La (0.14-0.16 wt%) and different amounts of N (0.33-0.97 at. % of surface nitrogen). Addition of small amount of surface nitrogen significantly increased the amount of hydrogen produced for N-La/TiO2 photocatalysts in contrast to TiO2 and La/TiO2. The chemical composition (XRF, AAS, XPS), structural (XRD, Raman, XPS, TEM), textural (N-2-adsorption) and optical properties (DRS) were studied. N-La/TiO2 materials showed approximately the same specific surface area and crystallite size, with values ranging for La/TiO2 and N/TiO2 photocatalysts. For studied N-La/TiO2 photocatalysts, the photocatalytic activity increased with the increasing amount of surface nitrogen (interstitial positions, XPS), and subsequently with increasing amount of oxygen vacancies (Raman spectroscopy) and decreasing amount of surface oxygen species (surface lattice O species and hydroxyl groups evidenced by XPS).
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20501 - Materials 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
Údaje specifické pro druh výsledku
Název periodika
Applied Surface Science
ISSN
0169-4332
e-ISSN
—
Svazek periodika
469
Číslo periodika v rámci svazku
March
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
8
Strana od-do
879-886
Kód UT WoS článku
000454617200101
EID výsledku v databázi Scopus
2-s2.0-85056613297