Publikace detail

ZnS/MMT nanocomposites: The effect of ZnS loading in MMT on the photocatalytic reduction of carbon dioxide

Rok: 2014

Druh publikace: článek v odborném periodiku

Název zdroje: Applied catalysis B: Enviromental

Název nakladatele: Elsevier Science BV

Místo vydání: Amsterdam

Strana od-do: 410-417

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	ZnS/MMT nanokompozity: Efekt ZnS v MMT na fotokatalytickou redukci CO2	Odlišné množství nanočástic ZnS stabilizovaných pomocí CTAB bylo naprášeno na MMT, aby byl získán nanokompozit ZnS/MMT vhodný pro fotokatalytickou redukci CO2.	ZnS nanočástice; MMT; nanokompozit; fotokatalýza; redukce CO2
eng	ZnS/MMT nanocomposites: The effect of ZnS loading in MMT on the photocatalytic reduction of carbon dioxide	Different weight loadings (2-4.2 wt.%) of ZnS nanoparticles stabilized by cetyltrimethylammonium bromide (CTAB) were deposited on montmorillonite (MMT) in order to investigate the performance of ZnS/MMT nanocomposites in the CO2 photocatalytic reduction. Physicochemical properties of prepared nanocomposites were comprehensively characterized by using nitrogen physisorption, XRD, TEM, DR UV-vis spectroscopy and contact potential difference measurements. The main reaction products in a gas phase were hydrogen and methane. According to the blank test the pristine montmorillonite did not possess any photocatalytic performance. The order in photo catalytic performance of individual ZnS/MMT nanocomposites in CO2 reduction depending on the ZnS loading was following: 3.1 wt.% ZnS > 4.2 wt.% ZnS > 2.0 wt.% ZnS. This trend was explained based on UV-vis, TEM and contact potential difference measurements as follows. The increasing loading of ZnS nanoparticles affects the degree of ZnS nanoparticles agglomeration on MMT and this agglomeration finally influences the properties/behavior within electronic structure of ZnS, correlating with the photocatalytic performance of ZnS/MMT nanocomposites in the CO2 reduction.	ZnS nanoparticles; Montmorillonite (MMT); Nanocomposite; Photocatalysis; Work function

Vyhledávání

Přihlášení pro studenty

Přihlášení pro zaměstnance

Publikace detail

Katedry

Ústavy a pracoviště

Jak nás najdete?

Služby

Často hledáte