Ice Nucleation Activity of Perfluorinated Organic Acids
[Image: see text] Perfluorinated acids (PFAs) are widely used synthetic chemical compounds, highly resistant to environmental degradation. The widespread PFA contamination in remote regions such as the High Arctic implies currently not understood long-range atmospheric transport pathways. Here, we r...
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ftpubmed:oai:pubmedcentral.nih.gov:8040019 2023-05-15T15:02:40+02:00 Ice Nucleation Activity of Perfluorinated Organic Acids Schwidetzky, Ralph Sun, Yuling Fröhlich-Nowoisky, Janine Kunert, Anna T. Bonn, Mischa Meister, Konrad 2021-03-31 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8040019/ http://www.ncbi.nlm.nih.gov/pubmed/33789043 https://doi.org/10.1021/acs.jpclett.1c00604 en eng American Chemical Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8040019/ http://www.ncbi.nlm.nih.gov/pubmed/33789043 http://dx.doi.org/10.1021/acs.jpclett.1c00604 © 2021 The Authors. Published by American Chemical Society Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). CC-BY J Phys Chem Lett Text 2021 ftpubmed https://doi.org/10.1021/acs.jpclett.1c00604 2021-04-18T00:44:53Z [Image: see text] Perfluorinated acids (PFAs) are widely used synthetic chemical compounds, highly resistant to environmental degradation. The widespread PFA contamination in remote regions such as the High Arctic implies currently not understood long-range atmospheric transport pathways. Here, we report that perfluorooctanoic acid (PFOA) initiates heterogeneous ice nucleation at temperatures as high as −16 °C. In contrast, the eight-carbon octanoic acid, perfluorooctanesulfonic acid, and deprotonated PFOA showed poor ice nucleating capabilities. The ice nucleation ability of PFOA correlates with the formation of a PFOA monolayer at the air–water interface, suggesting a mechanism in which the aligned hydroxyl groups of the carboxylic acid moieties provide a lattice matching to ice. The ice nucleation capabilities of fluorinated compounds like PFOA might be relevant for cloud glaciation in the atmosphere and the removal of these persistent pollutants by wet deposition. Text Arctic PubMed Central (PMC) Arctic The Journal of Physical Chemistry Letters 12 13 3431 3435 |
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[Image: see text] Perfluorinated acids (PFAs) are widely used synthetic chemical compounds, highly resistant to environmental degradation. The widespread PFA contamination in remote regions such as the High Arctic implies currently not understood long-range atmospheric transport pathways. Here, we report that perfluorooctanoic acid (PFOA) initiates heterogeneous ice nucleation at temperatures as high as −16 °C. In contrast, the eight-carbon octanoic acid, perfluorooctanesulfonic acid, and deprotonated PFOA showed poor ice nucleating capabilities. The ice nucleation ability of PFOA correlates with the formation of a PFOA monolayer at the air–water interface, suggesting a mechanism in which the aligned hydroxyl groups of the carboxylic acid moieties provide a lattice matching to ice. The ice nucleation capabilities of fluorinated compounds like PFOA might be relevant for cloud glaciation in the atmosphere and the removal of these persistent pollutants by wet deposition. |
format |
Text |
author |
Schwidetzky, Ralph Sun, Yuling Fröhlich-Nowoisky, Janine Kunert, Anna T. Bonn, Mischa Meister, Konrad |
spellingShingle |
Schwidetzky, Ralph Sun, Yuling Fröhlich-Nowoisky, Janine Kunert, Anna T. Bonn, Mischa Meister, Konrad Ice Nucleation Activity of Perfluorinated Organic Acids |
author_facet |
Schwidetzky, Ralph Sun, Yuling Fröhlich-Nowoisky, Janine Kunert, Anna T. Bonn, Mischa Meister, Konrad |
author_sort |
Schwidetzky, Ralph |
title |
Ice Nucleation Activity of Perfluorinated Organic Acids |
title_short |
Ice Nucleation Activity of Perfluorinated Organic Acids |
title_full |
Ice Nucleation Activity of Perfluorinated Organic Acids |
title_fullStr |
Ice Nucleation Activity of Perfluorinated Organic Acids |
title_full_unstemmed |
Ice Nucleation Activity of Perfluorinated Organic Acids |
title_sort |
ice nucleation activity of perfluorinated organic acids |
publisher |
American Chemical Society |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8040019/ http://www.ncbi.nlm.nih.gov/pubmed/33789043 https://doi.org/10.1021/acs.jpclett.1c00604 |
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Arctic |
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Arctic |
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Arctic |
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Arctic |
op_source |
J Phys Chem Lett |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8040019/ http://www.ncbi.nlm.nih.gov/pubmed/33789043 http://dx.doi.org/10.1021/acs.jpclett.1c00604 |
op_rights |
© 2021 The Authors. Published by American Chemical Society Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
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CC-BY |
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https://doi.org/10.1021/acs.jpclett.1c00604 |
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The Journal of Physical Chemistry Letters |
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12 |
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13 |
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3431 |
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3435 |
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1766334596501209088 |