Impact of groundwater solutes on the fate and reactivity of nanoscale iron nitride particles

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F25%3A73628802" target="_blank" >RIV/61989592:15640/25:73628802 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S2213343725001265?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2213343725001265?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jece.2025.115431" target="_blank" >10.1016/j.jece.2025.115431</a>

Result language

angličtina

Original language name

Impact of groundwater solutes on the fate and reactivity of nanoscale iron nitride particles

Original language description

Partial or full nitriding of nanoscale zero-valent iron (nZVI) particles suppresses their corrosion and enhances their selectivity for chlorinated ethenes. However, the impact of groundwater solutes on the reactive lifetime of FexN-based nanoparticles remains poorly understood. Herein, we aged FexN nanoparticles for 30 days in suspensions containing realistic concentrations of common groundwater solutes and characterized the resulting transformation products. Subsequently, the aged particles were exposed to trichloroethene (TCE) to evaluate reactivity changes under varying water chemistries. Acquired results demonstrate that aged FexN nanoparticles effectively degrade TCE across a range and concentrations of groundwater solutes, including Na+, Ca2+, Mg2+, Cl-, SO4 2- and HCO3-. The primary corrosion products in these solutions were &quot;white rust&quot; and &quot;green rust&quot; minerals. Variations in TCE dechlorination rates were linked to the type and concentration of solutes, pH, and the resultant corrosion products. Notably, TCE degradation was significantly suppressed in the presence of HPO42- and NO3 - ions, with vivianite and magnetite being the dominant corrosion products, respectively. Findings from single salt experiments were validated using two groundwater samples. This study elucidates the complex effects of solutes on FexN corrosion and reactivity, providing valuable insights for predicting the performance of FexNbased materials in groundwater remediation.

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

—

OECD FORD branch

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

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)

Publication year

2025

Confidentiality

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

Name of the periodical

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING

ISSN

2213-2929

e-ISSN

2213-3437

Volume of the periodical

13

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

nestránkováno

UT code for WoS article

001410020800001

EID of the result in the Scopus database

2-s2.0-85215411809