Size and strain of zinc sulfide nanoparticles altered by interaction with organic molecules

Le Bars Maureen, Levard Clément, Legros Samuel, Vidal Vladimir, Fernandez-Martinez Alejandro, Michel Marc F., Thill Antoine, Prelot Bénédicte, Dublet-Adli Gabrielle, Borschneck Daniel, Rose Jérôme, Doelsch Emmanuel. 2022. Size and strain of zinc sulfide nanoparticles altered by interaction with organic molecules. Environmental Science and Technology, 56 (23) : 16831-16837.

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Résumé : Nanosized zinc sulfides (nano-ZnS) have size-dependent and tunable physical and chemical properties that make them useful for a variety of technological applications. For example, structural changes, especially caused by strain, are pronounced in nano-ZnS < 5 nm in size, the size range typical of incidental nano-ZnS that form in the environment. Previous research has shown how natural organic matter impacts the physical properties of nano-ZnS but was mostly focused on their aggregation state. However, the specific organic molecules and the type of functional groups that are most important for controlling the nano-ZnS size and strain remain unclear. This study examined the size-dependent strain of nano-ZnS synthesized in the presence of serine, cysteine, glutathione, histidine, and acetate. Synchrotron total scattering pair distribution function analysis was used to determine the average crystallite size and strain. Among the different organic molecules tested, those containing a thiol group were shown to affect the particle size and size-induced strain most strongly when added during synthesis but significantly reduced the particle strain when added to as-formed nano-ZnS. The same effects are useful to understand the properties and behavior of natural nano-ZnS formed as products of microbial activity, for example, in reducing environments, or of incidental nano-ZnS formed in organic wastes.

Mots-clés libres : Thiol, Pair distribution function, Sphalerite, Lattice contraction, Structure, ZnS

Classification Agris : U50 - Sciences physiques et chimie

Champ stratégique Cirad : CTS 7 (2019-) - Hors champs stratégiques

Agences de financement hors UE : Agence Nationale de la Recherche

Projets sur financement : (FRA) Diagnostic des traitements des déchets et comportement des contaminants dans l'environnement

Auteurs et affiliations

• Le Bars Maureen, Aix-Marseille université (FRA) - auteur correspondant
• Levard Clément, CNRS (FRA)
• Legros Samuel, CIRAD-PERSYST-UPR Recyclage et risque (FRA) ORCID: 0000-0001-7081-6679
• Vidal Vladimir, Aix-Marseille université (FRA)
• Fernandez-Martinez Alejandro, Université de Grenoble (FRA)
• Michel Marc F., Virginia Polytechnic Institute and State University (USA)
• Thill Antoine, CEA (FRA)
• Prelot Bénédicte, Université de Montpellier (FRA)
• Dublet-Adli Gabrielle, NGI (NOR)
• Borschneck Daniel, CNRS (FRA)
• Rose Jérôme, CNRS (FRA)
• Doelsch Emmanuel, CIRAD-PERSYST-UPR Recyclage et risque (FRA) ORCID: 0000-0002-7478-4296

Source : Cirad-Agritrop (https://agritrop.cirad.fr/603295/)

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