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Photocatalytic decomposition of N2O over g-C3N4/WO3 photocatalysts

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F17%3A10237648" target="_blank" >RIV/61989100:27360/17:10237648 - isvavai.cz</a>

  • Nalezeny alternativní kódy

    RIV/61989100:27360/18:10240278 RIV/61989100:27710/18:10240278 RIV/61989100:27740/18:10240278 RIV/61989100:27710/17:10237648

  • Výsledek na webu

    <a href="https://www.scopus.com/record/display.uri?eid=2-s2.0-85035147502&origin=resultslist&sort=plf-f&src=s&st1=Photocatalytic+decomposition+of+N2O+over+g-C3N4%2fWO3photocatalysts&st2=&sid=0093dcf5a6347efc2d9b5a6804f63196&sot=b&sdt=b&sl=72&s=TITLE%28Photocatalytic+decomposition+of+N2O+over+g-C3N4%2fWO3photocatalysts%29&relpos=0&citeCnt=0&searchTerm=" target="_blank" >https://www.scopus.com/record/display.uri?eid=2-s2.0-85035147502&origin=resultslist&sort=plf-f&src=s&st1=Photocatalytic+decomposition+of+N2O+over+g-C3N4%2fWO3photocatalysts&st2=&sid=0093dcf5a6347efc2d9b5a6804f63196&sot=b&sdt=b&sl=72&s=TITLE%28Photocatalytic+decomposition+of+N2O+over+g-C3N4%2fWO3photocatalysts%29&relpos=0&citeCnt=0&searchTerm=</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/s11356-017-0723-6" target="_blank" >10.1007/s11356-017-0723-6</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Photocatalytic decomposition of N2O over g-C3N4/WO3 photocatalysts

  • Popis výsledku v původním jazyce

    Although the nitrous oxide belongs among three of the most contributing greenhouse gases to global warming, it is quite neglected by photocatalytic society. The g-C3N4 and WO3 composites were therefore tested for the photocatalytic decomposition of N2O for the first time. The pure photocatalysts were prepared by simple calcination of precursors, and the composites were prepared by mixing of suspension of pure components in water followed by calcination. The structural (X-ray diffraction, X-ray photoelectron spectroscopy, high-resolution transmission electron microscopy), textural (N2 physisorption), and optical properties (diffuse reflectance spectroscopy, photoluminescence spectroscopy, photoelectrochemical measurements) of all composites were correlated with photocatalytic activity. The experimental results and results from characterization techniques confirmed creation of Z-scheme in the WO3/g-C3N4 composites, which was confirmed by hydroxyl radicals&apos; trapping measurements. The photocatalytic decomposition of N2O was carried out in the presence of UVA light (peak intensity at 365 nm) and the 1:2 WO3/g-C3N4 composite was the most active one, but the photocatalytic activity was just negligibly higher than that of pure WO3. This is caused by relatively weak interaction between WO3 and g-C3N4 which was revealed from XPS.

  • Název v anglickém jazyce

    Photocatalytic decomposition of N2O over g-C3N4/WO3 photocatalysts

  • Popis výsledku anglicky

    Although the nitrous oxide belongs among three of the most contributing greenhouse gases to global warming, it is quite neglected by photocatalytic society. The g-C3N4 and WO3 composites were therefore tested for the photocatalytic decomposition of N2O for the first time. The pure photocatalysts were prepared by simple calcination of precursors, and the composites were prepared by mixing of suspension of pure components in water followed by calcination. The structural (X-ray diffraction, X-ray photoelectron spectroscopy, high-resolution transmission electron microscopy), textural (N2 physisorption), and optical properties (diffuse reflectance spectroscopy, photoluminescence spectroscopy, photoelectrochemical measurements) of all composites were correlated with photocatalytic activity. The experimental results and results from characterization techniques confirmed creation of Z-scheme in the WO3/g-C3N4 composites, which was confirmed by hydroxyl radicals&apos; trapping measurements. The photocatalytic decomposition of N2O was carried out in the presence of UVA light (peak intensity at 365 nm) and the 1:2 WO3/g-C3N4 composite was the most active one, but the photocatalytic activity was just negligibly higher than that of pure WO3. This is caused by relatively weak interaction between WO3 and g-C3N4 which was revealed from XPS.

Klasifikace

  • Druh

    J<sub>imp</sub> - Článek v periodiku v databázi Web of Science

  • CEP obor

  • OECD FORD obor

    10403 - Physical chemistry

Návaznosti výsledku

  • Projekt

    <a href="/cs/project/GA16-10527S" target="_blank" >GA16-10527S: Nanostruktury na bázi garfitizovaného C3N4 pro fotokatalytický rozklad oxidu dusného</a><br>

  • Návaznosti

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Ostatní

  • Rok uplatnění

    2017

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název periodika

    Environmental Science and Pollution Research

  • ISSN

    0944-1344

  • e-ISSN

  • Svazek periodika

    25

  • Číslo periodika v rámci svazku

    SI

  • Stát vydavatele periodika

    DE - Spolková republika Německo

  • Počet stran výsledku

    12

  • Strana od-do

    34839-34850

  • Kód UT WoS článku

    000452024600006

  • EID výsledku v databázi Scopus

    2-s2.0-85035147502