Nanoparticle stability in lake water shaped by natural organic matter properties and presence of particulate matter
| Autor: | Patrick Ollivier, Bernard Angeletti, Jonathan A. Brant, Hélène Miche, Auguste Bruchet, Jérôme Labille, Danielle L. Slomberg, Marc Philibert |
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| Přispěvatelé: | International Consortium for the Environmental Implications of Nanotechnology (iCEINT), Aix en Provence, France, Bureau de Recherches Géologiques et Minières (BRGM) (BRGM), Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Collège de France (CdF)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Institut National de la Recherche Agronomique (INRA), CIRSEE SUEZ ENVIRONNEMENT, Suez Environnement, Department of Civil and Environmental Engineering, Duke University [Durham], Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Collège de France (CdF (institution))-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA), Centre International de Recherche Sur l'Eau et l'Environnement [Suez] (CIRSEE), SUEZ ENVIRONNEMENT (FRANCE), ANR-11-IDEX-0001-02 ANR-11-LABX-0064, Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Environmental Engineering
010504 meteorology & atmospheric sciences Environmental fate Nanoparticle Nanomaterial exposure 010501 environmental sciences 01 natural sciences Natural organic matter Suspension (chemistry) Gel permeation chromatography Colloid Aggregation Environmental Chemistry [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Waste Management and Disposal ComputingMilieux_MISCELLANEOUS 0105 earth and related environmental sciences Nanotechnology risk assessment Chemistry Sedimentation Particulates Pollution [SDE.ES]Environmental Sciences/Environmental and Society 6. Clean water 13. Climate action Environmental chemistry Colloidal dispersion Composition (visual arts) |
| Zdroj: | Science of the Total Environment Science of the Total Environment, Elsevier, 2019, 656, pp.338-346. ⟨10.1016/j.scitotenv.2018.11.279⟩ Science of the Total Environment, 2019, 656, pp.338-346. ⟨10.1016/j.scitotenv.2018.11.279⟩ |
| ISSN: | 0048-9697 1879-1026 |
| Popis: | International audience; Predicting nanoparticle (NP) fate in the environment continues to remain a challenge, especially for natural surface water systems, where NPs can hetero-aggregate with natural organic and mineral suspended matter. Here we present the interactions and aggregation behavior of TiO2 NPs with natural organic matter (NOM) in a natural lake water. NP fate in a synthetic water of the same pH and ionic composition was also tested in the presence and absence of NOM analogs to gain insight into the different stabilizing effects of each NOM type. Several complementary analytical techniques were utilized to assess lake NOM composition, including pyrolysis-gas chromatography-mass spectrometry, gel permeation chromatography, the polarity rapid-assessment method, and Nanoparticle Tracking Analysis. In the natural lake water, the TiO2 NPs preferentially interacted with mostly anionic NOM of high and medium molecular weight (~1200-1450 and 400-520 Da). Specifically, strong interactions with proteins and polyhydroxy aromatics were observed. NP fate and stability were determined in both raw lake water containing mineral particulate matter and total NOM (NOMtot) and filtered lake water containing only NOM |
| Databáze: | OpenAIRE |
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