Degradation of chlorinated ethylenes by nanoscale zerovalent iron modified with silica

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F12%3A43893800" target="_blank" >RIV/60461373:22320/12:43893800 - 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
Degradation of chlorinated ethylenes by nanoscale zerovalent iron modified with silica
Original language description
We studied the degradation of different chlorinated ethylenes by silica coated nanoscale zerovalent iron particles nZVI. The silica coated nZVI has improved stability for its subsurface migration and can accelerate the degradation of studied contaminants. The reactivity of studied silica coated nZVI was compared to the uncoated nZVI and microscale zerovalent iron particles. To form the silica coating, the uncoated nanoiron particles in an aqueous suspension were modified by Stöber synthesis using tetraethylorthosilicate (TEOS). Lab-scale degradation experiments were performed in serum bottles containing a mixture of chlorinated ethylenes (? 5 mg.L-1 each) and a certain dose (2.5 - 25 g.L-1) of silica coated nZVI, noncoated nZVI or microscale particles,to simulate conditions on contaminated sites. After five weeks, microscale particles degraded all three contaminants, but the degradation rate was up to two order lower than both nanoiron materials. In the presence of silica coated nZVI,
Czech name
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Czech description
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Type
D - Article in proceedings
CEP classification
DK - Contamination and decontamination of soil including pesticides
OECD FORD branch
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Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
NANOCON 2012 Conference Proceedings 4th International conference
ISBN
978-80-87294-32-1
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
1-6
Publisher name
TANGER
Place of publication
Ostrava
Event location
Brno
Event date
Oct 23, 2012
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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