Photocatalytic and photochemical decomposition of N2O on ZnS-MMT catalyst

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F14%3A86091527" target="_blank" >RIV/61989100:27360/14:86091527 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27710/14:86091527 RIV/61989100:27730/14:86091527

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.cattod.2013.09.047" target="_blank" >http://dx.doi.org/10.1016/j.cattod.2013.09.047</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cattod.2013.09.047" target="_blank" >10.1016/j.cattod.2013.09.047</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Photocatalytic and photochemical decomposition of N2O on ZnS-MMT catalyst

Popis výsledku v původním jazyce

ZnS nanoparticles stabilized by cetyltrimethylammonium bromide were deposited on montmorillonite forming the ZnS-MMT nanocomposite. The nanocomposite was characterized by UV-Vis DRS, SEM-EDAX, FTIR, XRD and nitrogen physisorption and tested for N2O photocatalytic decomposition in an annular batch reactor illuminated with an 8 W Hg lamp (254 nm wavelength). Photolysis of N2O was tested at the same conditions. The N2O conversion in inert gas was 79 % after 24 hours of illumination and was atributed to thesimultaneous N2O photocatalytic and photochemical decomposition. The presence of water vapor inhibited photocatalytic reaction pathway while N2O photolysis was improved. Photocatalytic performance was higher with catalyst in fluidized bed than in fixedbed. The reason is that both mass and photon transfer to the photocatalyst was maximized. Better results were obtained with Zn-MMT compared to Evonic P25 catalyst

Název v anglickém jazyce

Photocatalytic and photochemical decomposition of N2O on ZnS-MMT catalyst

Popis výsledku anglicky

ZnS nanoparticles stabilized by cetyltrimethylammonium bromide were deposited on montmorillonite forming the ZnS-MMT nanocomposite. The nanocomposite was characterized by UV-Vis DRS, SEM-EDAX, FTIR, XRD and nitrogen physisorption and tested for N2O photocatalytic decomposition in an annular batch reactor illuminated with an 8 W Hg lamp (254 nm wavelength). Photolysis of N2O was tested at the same conditions. The N2O conversion in inert gas was 79 % after 24 hours of illumination and was atributed to thesimultaneous N2O photocatalytic and photochemical decomposition. The presence of water vapor inhibited photocatalytic reaction pathway while N2O photolysis was improved. Photocatalytic performance was higher with catalyst in fluidized bed than in fixedbed. The reason is that both mass and photon transfer to the photocatalyst was maximized. Better results were obtained with Zn-MMT compared to Evonic P25 catalyst

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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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)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Catalysis Today

ISSN

0920-5861

e-ISSN

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Svazek periodika

230

Číslo periodika v rámci svazku

July

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

61-66

Kód UT WoS článku

000333800300011

EID výsledku v databázi Scopus

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