Using Silica Coated Nanoscale Zerovalent Particles for the Reduction of Chlorinated Ethylenes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F18%3A43915507" target="_blank" >RIV/60461373:22320/18:43915507 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22350/18:43915507

Result on the web

<a href="https://link.springer.com/article/10.1007/s12633-018-9795-2" target="_blank" >https://link.springer.com/article/10.1007/s12633-018-9795-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s12633-018-9795-2" target="_blank" >10.1007/s12633-018-9795-2</a>

Result language

angličtina

Original language name

Using Silica Coated Nanoscale Zerovalent Particles for the Reduction of Chlorinated Ethylenes

Original language description

The impact of a silica coating on the degradation potential of nanoscale zerovalent iron (nZVI) particles toward a mixture of chlorinated ethylenes is presented. The newly employed stabilization method for nZVI, based on silica deposition from saturated sodium silicate water glass, produces nZVI particles with a similar reactivity as non-stabilized particles. Moreover the removal rate constant kM of trichloroethylene (0.1740 L g−1 d−1 Fe0) and cis-dichloroethylene (0.1045 L g−1 d−1Fe0) was significantly improved (almost by a factor of 2) for stabilized nZVI. X-ray photoelectron spectroscopy (XPS) and Wavelength Dispersive X-ray Fluorescence (WDXRF) analyzes revealed a high durability of silica coating and the coating left at least half of nZVI surface silica free for reaction for more than 5 weeks. The silica coating did not affect the surface composition of silica coated nZVI which was confirmed by the very similar distribution of degradation products and corrosion products (Fe3O4, FeOOH) as was found for non-coated nanoparticles. An enhanced reactivity supplemented with a stable corrosion properties indicates that silica coated nZVI has potential as an efficient remediation agent toward chlorinated ethylenes.

Czech name

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Czech description

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Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

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OECD FORD branch

21002 - Nano-processes (applications on nano-scale); (biomaterials to be 2.9)

Project

<a href="/en/project/TA02020654" target="_blank" >TA02020654: Abiotic and biological technology for remediation</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

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

Name of the periodical

Silicon

ISSN

1876-990X

e-ISSN

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Volume of the periodical

10

Issue of the periodical within the volume

6

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

2593-2601

UT code for WoS article

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EID of the result in the Scopus database

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