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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/46747885:24620/21:00009043

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20701 - Environmental and geological engineering, geotechnics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Environmental Science: Water Research & Technology

ISSN

2053-1400

e-ISSN

—

Svazek periodika

8

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

162-172

Kód UT WoS článku

000723744000001

EID výsledku v databázi Scopus

2-s2.0-85122158548