Photocatalytic Reduction of CO2 Over CdS, ZnS and Core/Shell CdS/ZnS Nanoparticles Deposited on Montmorillonite
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F17%3A10237586" target="_blank" >RIV/61989100:27360/17:10237586 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/61989100:27710/17:10237586 RIV/61989100:27730/17:10237586
Výsledek na webu
<a href="http://www.ingentaconnect.com/content/asp/jnn/2017/00000017/00000006/art00059;jsessionid=2depa0oqj2fnt.x-ic-live-02" target="_blank" >http://www.ingentaconnect.com/content/asp/jnn/2017/00000017/00000006/art00059;jsessionid=2depa0oqj2fnt.x-ic-live-02</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1166/jnn.2017.13093" target="_blank" >10.1166/jnn.2017.13093</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Photocatalytic Reduction of CO2 Over CdS, ZnS and Core/Shell CdS/ZnS Nanoparticles Deposited on Montmorillonite
Popis výsledku v původním jazyce
CdS, ZnS and core/shell CdS/ZnS nanoparticles deposited on montmorillonite (MMT) were synthesized by one-pot procedure, that is, by subsequent precipitation of CdS and ZnS nanoparticles in one aqueous dispersion of cetyltrimethylammonium bromide (CTAB) and deposited on montmorillonite. The prepared nanoparticles were characterized by chemical analysis, N-2 physisorption measurements, UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS), temperature programmed desorption (TPD) of CO2 and high resolution transmission electron microscopy (HRTEM). The photocatalytic performance of these materials was investigated for the H-2 and CH4 evolution from the CO2 reduction in water media under UV irradiation (lambda = 254 nm and 365 nm). The control experiment was carried out to guarantee that the product was produced by CO2 photocatalytic reduction. The key role in activity of the core/shell photocatalysts was played by the photogenerated electrons and holes in ZnS which could change over to valence and conductivity bands of CdS and could react with hydrogen cations to create hydrogen. Increase of the core/shell photocatalytic activity could be caused by increase of specific surface area, inhibition of CdS photocorrosion and surface electronic state passivation of CdS cores by ZnS shells.
Název v anglickém jazyce
Photocatalytic Reduction of CO2 Over CdS, ZnS and Core/Shell CdS/ZnS Nanoparticles Deposited on Montmorillonite
Popis výsledku anglicky
CdS, ZnS and core/shell CdS/ZnS nanoparticles deposited on montmorillonite (MMT) were synthesized by one-pot procedure, that is, by subsequent precipitation of CdS and ZnS nanoparticles in one aqueous dispersion of cetyltrimethylammonium bromide (CTAB) and deposited on montmorillonite. The prepared nanoparticles were characterized by chemical analysis, N-2 physisorption measurements, UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS), temperature programmed desorption (TPD) of CO2 and high resolution transmission electron microscopy (HRTEM). The photocatalytic performance of these materials was investigated for the H-2 and CH4 evolution from the CO2 reduction in water media under UV irradiation (lambda = 254 nm and 365 nm). The control experiment was carried out to guarantee that the product was produced by CO2 photocatalytic reduction. The key role in activity of the core/shell photocatalysts was played by the photogenerated electrons and holes in ZnS which could change over to valence and conductivity bands of CdS and could react with hydrogen cations to create hydrogen. Increase of the core/shell photocatalytic activity could be caused by increase of specific surface area, inhibition of CdS photocorrosion and surface electronic state passivation of CdS cores by ZnS shells.
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
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
2017
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of nanoscience and nanotechnology
ISSN
1533-4880
e-ISSN
—
Svazek periodika
17
Číslo periodika v rámci svazku
6
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
7
Strana od-do
4041-4047
Kód UT WoS článku
000402483900059
EID výsledku v databázi Scopus
—