About: Photocatalytic decomposition of phenol by nanocomposite of ZnS nanoparticles and montmorillonite

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About: Photocatalytic decomposition of phenol by nanocomposite of ZnS nanoparticles and montmorillonite Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The nanocomposite of ZnS nanoparticles stabilized by cetyltrimethylammonium ions (ZnS-CTA) and montmorillonite (ZnS-CTA-MMT) was prepared and used as a catalyst for the photodecomposition of phenol under UV irradiation of a medium pressure Hg lamp. The content of ZnS in ZnS-CTA-MMT was about 6 wt. %. For comparison the photodecomposition was also performed with ZnS-CTA, montmorillonite and with no. catalyst, i.e using only UV irradiation (UV). The decomposition efficiency decreased in the order: UV + ZnS-CTA-MMT _ UV + ZnS-CTA > UV > UV + MMT. The photodecomposition in the presence of ZnS-CTA-MMT and ZnS-CTA proceeded according to the pseudo-first order reaction kinetics. In other cases, the photodecomposition corresponded to the pseudo-second order reaction of phenol and hydroxyl radicals. Hydroxyl radical were produced by the reactions of dissolved oxygen and electrons released from the ZnS nanoparticles and excited phenol molecules. MMT decreased the photodecomposition reaction rate and no MMT catalytic activity was observed. The nanocomposite of ZnS nanoparticles stabilized by cetyltrimethylammonium ions (ZnS-CTA) and montmorillonite (ZnS-CTA-MMT) was prepared and used as a catalyst for the photodecomposition of phenol under UV irradiation of a medium pressure Hg lamp. The content of ZnS in ZnS-CTA-MMT was about 6 wt. %. For comparison the photodecomposition was also performed with ZnS-CTA, montmorillonite and with no. catalyst, i.e using only UV irradiation (UV). The decomposition efficiency decreased in the order: UV + ZnS-CTA-MMT _ UV + ZnS-CTA > UV > UV + MMT. The photodecomposition in the presence of ZnS-CTA-MMT and ZnS-CTA proceeded according to the pseudo-first order reaction kinetics. In other cases, the photodecomposition corresponded to the pseudo-second order reaction of phenol and hydroxyl radicals. Hydroxyl radical were produced by the reactions of dissolved oxygen and electrons released from the ZnS nanoparticles and excited phenol molecules. MMT decreased the photodecomposition reaction rate and no MMT catalytic activity was observed. (en)
Title	Photocatalytic decomposition of phenol by nanocomposite of ZnS nanoparticles and montmorillonite Photocatalytic decomposition of phenol by nanocomposite of ZnS nanoparticles and montmorillonite (en)
skos:prefLabel	Photocatalytic decomposition of phenol by nanocomposite of ZnS nanoparticles and montmorillonite Photocatalytic decomposition of phenol by nanocomposite of ZnS nanoparticles and montmorillonite (en)
skos:notation	RIV/61989100:27360/12:86083742!RIV13-GA0-27360___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(ED0040/01/01), P(GAP107/11/1918), S
http://linked.open...iv/cisloPeriodika	10
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Praus, Petr Kozák, Ondřej
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola báňská - Technická univerzita Ostrava / Fakulta metalurgie a materiálového inženýrství
http://linked.open...dnocenehoVysledku	158541
http://linked.open...ai/riv/idVysledku	RIV/61989100:27360/12:86083742
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	ZnS nanoparticles, montmorillonite, nanocomposite, photocatalysis, phenol (en)
http://linked.open.../riv/klicoveSlovo	nanocomposite phenol photocatalysis ZnS nanoparticles montmorillonite
http://linked.open...odStatuVydavatele	BR - Brazilská federativní republika
http://linked.open...ontrolniKodProRIV	[54A52C68471E]
http://linked.open...i/riv/nazevZdroje	Journal of the Brazilian Chemical Society
http://linked.open...in/vavai/riv/obor	JI
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Regional materials science and technology centre Research of the zinc and cadmium sulphide nanoparticles deposited on phyllosilicates for the photocatalytic reduction of carbon dioxide
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	23
http://linked.open...iv/tvurceVysledku	Kozák, Ondřej Praus, Petr Matys, Jakub
http://linked.open...ain/vavai/riv/wos	000312199200020
issn	0103-5053
number of pages	6 (xsd:int)
http://localhost/t...ganizacniJednotka	27360

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