Photocatalytic decomposition of phenol by nanocomposite of ZnS nanoparticles and montmorillonite

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F12%3A86083742" target="_blank" >RIV/61989100:27360/12:86083742 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Photocatalytic decomposition of phenol by nanocomposite of ZnS nanoparticles and montmorillonite

Original language 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

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JI - Composite materials

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2012

Confidentiality

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

Name of the periodical

Journal of the Brazilian Chemical Society

ISSN

0103-5053

e-ISSN

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Volume of the periodical

23

Issue of the periodical within the volume

10

Country of publishing house

BR - BRAZIL

Number of pages

6

Pages from-to

1900-1906

UT code for WoS article

000312199200020

EID of the result in the Scopus database

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