Structural properties and photocatalytic activity of ceria nanoparticles on vermiculite matrix

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F16%3A86098463" target="_blank" >RIV/61989100:27640/16:86098463 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27710/16:86098463 RIV/61989100:27740/16:86098463

Výsledek na webu

<a href="http://www.ingentaconnect.com/contentone/asp/jnn/2016/00000016/00000008/art00017" target="_blank" >http://www.ingentaconnect.com/contentone/asp/jnn/2016/00000016/00000008/art00017</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1166/jnn.2016.12563" target="_blank" >10.1166/jnn.2016.12563</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Structural properties and photocatalytic activity of ceria nanoparticles on vermiculite matrix

Popis výsledku v původním jazyce

Clay mineral matrices and metal oxides are of current interest because of their high thermal stability, large surface area, and good catalytic and adsorption properties. Cerium oxide (ceria, CeO2) nanoparticles was obtained by interaction of vermiculite with ceria precursor (NH4)2Ce(NO3)6. The mean crystallite size of CeO2 nanoparticles in the vermiculite was (8.5+-0.5) nm. The HRTEM micrographs confirmed the crystallite size and revealed additionally the shape of crystallites. The intercalation of the cerium reaction products into vermiculite was proven by using X-ray diffraction and ICP-AES. The incorporation of ceria into vermiculite increased the surface area from 14 to 62 m2.gMINUS SIGN 1 and the volume of micropores from 0.1213 to 0.3928 cm3 gMINUS SIGN 1, and reduced the average pore diameter from 264 nm to 58.5 nm. Under UV irradiation, decomposition of N2O influenced by the sole CeO2 and 36 wt% CeO2 attached to the vermiculite was 57.7% and 53.3%, respectively, in comparison with the decomposition of 51.6% by commercial catalyst Evonik P25.

Název v anglickém jazyce

Structural properties and photocatalytic activity of ceria nanoparticles on vermiculite matrix

Popis výsledku anglicky

Clay mineral matrices and metal oxides are of current interest because of their high thermal stability, large surface area, and good catalytic and adsorption properties. Cerium oxide (ceria, CeO2) nanoparticles was obtained by interaction of vermiculite with ceria precursor (NH4)2Ce(NO3)6. The mean crystallite size of CeO2 nanoparticles in the vermiculite was (8.5+-0.5) nm. The HRTEM micrographs confirmed the crystallite size and revealed additionally the shape of crystallites. The intercalation of the cerium reaction products into vermiculite was proven by using X-ray diffraction and ICP-AES. The incorporation of ceria into vermiculite increased the surface area from 14 to 62 m2.gMINUS SIGN 1 and the volume of micropores from 0.1213 to 0.3928 cm3 gMINUS SIGN 1, and reduced the average pore diameter from 264 nm to 58.5 nm. Under UV irradiation, decomposition of N2O influenced by the sole CeO2 and 36 wt% CeO2 attached to the vermiculite was 57.7% and 53.3%, respectively, in comparison with the decomposition of 51.6% by commercial catalyst Evonik P25.

Druh

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

CEP obor

DB - Geologie a mineralogie

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)

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Journal of nanoscience and nanotechnology

ISSN

1533-4880

e-ISSN

—

Svazek periodika

16

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

7844-7848

Kód UT WoS článku

000387083900017

EID výsledku v databázi Scopus

2-s2.0-84979026164