Sulfidation of air-stable iron nanoparticles: A novel strategy how to boost their reactivity demonstrated on Cr(VI) reduction

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F24%3A73626040" target="_blank" >RIV/61989592:15310/24:73626040 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15640/24:73626040

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2214714424014788?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2214714424014788?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jwpe.2024.106246" target="_blank" >10.1016/j.jwpe.2024.106246</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Sulfidation of air-stable iron nanoparticles: A novel strategy how to boost their reactivity demonstrated on Cr(VI) reduction

Popis výsledku v původním jazyce

Sulfidated zero-valent iron nanoparticles (S-nZVI) have been extensively studied as environmentally promising alternative material, which enables reduction of variety of extremely dangerous pollutants directly in the environment. However, synthesis and manipulation with these extremely reactive/pyrophoric nZVI particles represents a challenge and requires special precautions. In this study, we report a synthesis of S-nZVI from air-stable core-shell nZVI, which reactivity with contaminants and properties are comparable with the commonly prepared S-nZVI particles (where the precursor was bare/pyrophoric nZVI particles). The undeniable novelty dwells in the simplicity of the synthetic process, which ensures consequential safe and easy handling, manipulation, and application of S-nZVI particles. This material, especially highly effective against halogenated organic compounds and heavy metals, was characterized in detail and its advanced characteristics were evaluated in the process of hexavalent chromium (Cr(VI)) reduction from model aqueous solutions and polluted groundwater. The results offer valuable insights into the preparation of a novel nanomaterial with high application potential in the effective degradation of heavy metals in polluted water. Overall, the novel way prepared S-nZVI particles, designed for the potential large-scale production, eliminates the drawbacks of S-nZVI synthesized from bare nZVI particles and offers the effective material suitable for any on-site application.

Název v anglickém jazyce

Sulfidation of air-stable iron nanoparticles: A novel strategy how to boost their reactivity demonstrated on Cr(VI) reduction

Popis výsledku anglicky

Sulfidated zero-valent iron nanoparticles (S-nZVI) have been extensively studied as environmentally promising alternative material, which enables reduction of variety of extremely dangerous pollutants directly in the environment. However, synthesis and manipulation with these extremely reactive/pyrophoric nZVI particles represents a challenge and requires special precautions. In this study, we report a synthesis of S-nZVI from air-stable core-shell nZVI, which reactivity with contaminants and properties are comparable with the commonly prepared S-nZVI particles (where the precursor was bare/pyrophoric nZVI particles). The undeniable novelty dwells in the simplicity of the synthetic process, which ensures consequential safe and easy handling, manipulation, and application of S-nZVI particles. This material, especially highly effective against halogenated organic compounds and heavy metals, was characterized in detail and its advanced characteristics were evaluated in the process of hexavalent chromium (Cr(VI)) reduction from model aqueous solutions and polluted groundwater. The results offer valuable insights into the preparation of a novel nanomaterial with high application potential in the effective degradation of heavy metals in polluted water. Overall, the novel way prepared S-nZVI particles, designed for the potential large-scale production, eliminates the drawbacks of S-nZVI synthesized from bare nZVI particles and offers the effective material suitable for any on-site application.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20801 - Environmental biotechnology

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

2024

Kód důvěrnosti údajů

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

Název periodika

Journal of Water Process Engineering

ISSN

2214-7144

e-ISSN

—

Svazek periodika

67

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

—

Kód UT WoS článku

001332942600001

EID výsledku v databázi Scopus

2-s2.0-85205439688