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Effects of interactions between natural organic matter and aquatic organism degradation products on the transformation and dissolution of cobalt and nickel-based nanoparticles in synthetic freshwater
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Surface and Corrosion Science.ORCID iD: 0000-0002-2510-7766
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Surface and Corrosion Science.ORCID iD: 0000-0002-3561-5625
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Surface and Corrosion Science.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Surface and Corrosion Science.ORCID iD: 0000-0001-7496-1101
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2023 (English)In: Journal of Hazardous Materials, ISSN 0304-3894, E-ISSN 1873-3336, Vol. 445, p. 130586-130586, article id 130586Article in journal (Refereed) Published
Abstract [en]

Expanding applications and production of engineered nanoparticles lead to an increased risk for their environmental dispersion. Systematic knowledge of surface transformation and dissolution of nanoparticles is essential for risk assessment and regulation establishment. Such aspects of Co- and Ni-based nanoparticles including metals, oxides, and solution combustion synthesized metal nanoparticles (metal cores with carbon shells) were investigated upon environmental interaction with organic matter, simulated by natural organic matter (NOM) and degradation products from zooplankton and algae (eco-corona biomolecules, EC) in freshwater (FW). The presence of NOM and EC in FW results in negative surface charges of the nanoparticles reduces the extent of nanoparticles agglomeration, and increases concentration, mainly due to the surface adsorption of carboxylate groups of the organic matter. The dissolution of the Co-based nanoparticles was for all conditions (FW, FW with NOM or EC) higher than the Ni-based, except for Co3O4 being nearly non-soluble. The surface transformation and dissolution of nanoparticles are highly exposure and time-dependent, and surface- and environment specific. Therefore, no general correlation was observed between dissolution and, particle types, surface conditions, or EC/NOM adsorption. This underlines the importance of thorough investigations of nanoparticles adsorption/desorption, degradation, and exposure scenarios for developing regulatory relevant protocols and guidelines.

Place, publisher, year, edition, pages
Elsevier BV , 2023. Vol. 445, p. 130586-130586, article id 130586
Keywords [en]
Nanoparticles, Environmental transformation, Freshwater, Natural organic matter, Eco-corona
National Category
Ecology Nano Technology Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-323171DOI: 10.1016/j.jhazmat.2022.130586ISI: 000903963200002PubMedID: 37055991Scopus ID: 2-s2.0-85144032203OAI: oai:DiVA.org:kth-323171DiVA, id: diva2:1729046
Note

QC 20230214

Available from: 2023-01-19 Created: 2023-01-19 Last updated: 2023-06-08Bibliographically approved

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Chang, TingruKhort, AliaksandrSaeed, AnherBlomberg, EvaOdnevall, Inger

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