A comparative study of the degradation efficiency of chlorinated organic compounds by bimetallic zero-valent iron nanoparticles

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F21%3A00009043" target="_blank" >RIV/46747885:24220/21:00009043 - isvavai.cz</a>

Alternative codes found

RIV/46747885:24620/21:00009043

Result on the web

<a href="https://pubs.rsc.org/en/content/articlelanding/2022/ew/d1ew00791b/unauth" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2022/ew/d1ew00791b/unauth</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d1ew00791b" target="_blank" >10.1039/d1ew00791b</a>

Result language

angličtina

Original language name

A comparative study of the degradation efficiency of chlorinated organic compounds by bimetallic zero-valent iron nanoparticles

Original language description

The efficacy of zero-valent iron nanoparticles (nZVI) in degrading aquatic pollutants could be enhanced by the deposition of other metals on their surface. This article describes the synthesis of bimetallic nZVI with palladium (nZVI/Pd), nickel (nZVI/Ni), silver (nZVI/Ag), and copper (nZVI/Cu). The obtained bimetallic nZVIs were used in the degradation of chlorinated volatile organic compounds (CVOC) such as vinyl chloride (VC), 1,2-dichloroethylene (DCE), trichloroethylene (TCE), and perchloroethylene (PCE) in spiked water and real groundwater. Bimetallic nZVIs demonstrated superior degradation efficiencies compared to pristine nanoparticles. While pristine nZVI degraded ∼6%, ∼57%, and ∼26% of DCE, TCE, and PCE (25 mg L−1, spiked water), respectively, nZVI/Pd and nZVI/Ni degraded all the contaminants completely within 24 h. In addition, nZVI/Pd and nZVI/Ni demonstrated better degradation efficiencies as compared to nZVI/Ag and nZVI/Cu. This efficiency of nZVI/Pd and nZVI/Ni was further observed in the contaminant mixture (total CVOC concentration 25 mg L−1, 24 h of degradation time frame) as well as real groundwater (taken from Novy Bydzov locality). These bimetallic nZVIs demonstrated a significant increase in the degradation efficiency (from ∼10% using pristine nZVI to 99.9% using nZVI/Pd or nZVI/Ni). Even in groundwater, which contains numerous interferants such as organic acids and sulfate anions, bimetallic nZVI/Pd, and nZVI/Ni showed excellent degradation efficiency towards PCE [complete degradation when using nZVI/Pd or nZVI/Ni (24 h)]. Both nZVI/Ag and nZVI/Cu showed only a minor improvement in degradation efficiency.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20701 - Environmental and geological engineering, geotechnics

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

2021

Confidentiality

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

Name of the periodical

Environmental Science: Water Research & Technology

ISSN

2053-1400

e-ISSN

—

Volume of the periodical

8

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

162-172

UT code for WoS article

000723744000001

EID of the result in the Scopus database

2-s2.0-85122158548