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Oxidation states of copper in preservative treated wood as studied by X-ray absorption near edge spectroscopy (XANES)
Copper is a common component in wood preservatives and is used to protect the wood against fungal degradation. Previous research has shown that the Cu(++) oxidation state provides the best wood protection, and Cu(++) is widely believed to be the oxidation state of most copper within treated wood. A...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8794131/ https://www.ncbi.nlm.nih.gov/pubmed/35085335 http://dx.doi.org/10.1371/journal.pone.0263073 |
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author | Zelinka, Samuel L. Kirker, Grant T. Sterbinsky, George E. Bourne, Keith J. |
author_facet | Zelinka, Samuel L. Kirker, Grant T. Sterbinsky, George E. Bourne, Keith J. |
author_sort | Zelinka, Samuel L. |
collection | PubMed |
description | Copper is a common component in wood preservatives and is used to protect the wood against fungal degradation. Previous research has shown that the Cu(++) oxidation state provides the best wood protection, and Cu(++) is widely believed to be the oxidation state of most copper within treated wood. A recent study using X-ray absorption near edge spectroscopy (XANES) reported high amounts of Cu(+) in wood that had been in contact with corroded fasteners. This study uses XANES to examine the copper oxidation states in wood treated with several different wood preservatives as a function of time after treatment. In contrast with previous literature which focused on the fixation reaction in the first few hours after treatment, this paper examines the oxidation state of Cu in treated wood at longer times (up to 1-year) after treatment. The results showed in nearly all cases, Cu was in the Cu(++) oxidation state to within the measurement uncertainty. Cu XANES patterns taken approximately 1-year after treatment showed no discernable differences between preservative systems, indicating that regardless of the starting treatment the final Cu speciation is the same within one year. The results confirm previously held beliefs about the Cu oxidation states in wood and give further insights into the corrosion mechanism of metals embedded in treated wood. |
format | Online Article Text |
id | pubmed-8794131 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-87941312022-01-28 Oxidation states of copper in preservative treated wood as studied by X-ray absorption near edge spectroscopy (XANES) Zelinka, Samuel L. Kirker, Grant T. Sterbinsky, George E. Bourne, Keith J. PLoS One Research Article Copper is a common component in wood preservatives and is used to protect the wood against fungal degradation. Previous research has shown that the Cu(++) oxidation state provides the best wood protection, and Cu(++) is widely believed to be the oxidation state of most copper within treated wood. A recent study using X-ray absorption near edge spectroscopy (XANES) reported high amounts of Cu(+) in wood that had been in contact with corroded fasteners. This study uses XANES to examine the copper oxidation states in wood treated with several different wood preservatives as a function of time after treatment. In contrast with previous literature which focused on the fixation reaction in the first few hours after treatment, this paper examines the oxidation state of Cu in treated wood at longer times (up to 1-year) after treatment. The results showed in nearly all cases, Cu was in the Cu(++) oxidation state to within the measurement uncertainty. Cu XANES patterns taken approximately 1-year after treatment showed no discernable differences between preservative systems, indicating that regardless of the starting treatment the final Cu speciation is the same within one year. The results confirm previously held beliefs about the Cu oxidation states in wood and give further insights into the corrosion mechanism of metals embedded in treated wood. Public Library of Science 2022-01-27 /pmc/articles/PMC8794131/ /pubmed/35085335 http://dx.doi.org/10.1371/journal.pone.0263073 Text en https://creativecommons.org/publicdomain/zero/1.0/This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 (https://creativecommons.org/publicdomain/zero/1.0/) public domain dedication. |
spellingShingle | Research Article Zelinka, Samuel L. Kirker, Grant T. Sterbinsky, George E. Bourne, Keith J. Oxidation states of copper in preservative treated wood as studied by X-ray absorption near edge spectroscopy (XANES) |
title | Oxidation states of copper in preservative treated wood as studied by X-ray absorption near edge spectroscopy (XANES) |
title_full | Oxidation states of copper in preservative treated wood as studied by X-ray absorption near edge spectroscopy (XANES) |
title_fullStr | Oxidation states of copper in preservative treated wood as studied by X-ray absorption near edge spectroscopy (XANES) |
title_full_unstemmed | Oxidation states of copper in preservative treated wood as studied by X-ray absorption near edge spectroscopy (XANES) |
title_short | Oxidation states of copper in preservative treated wood as studied by X-ray absorption near edge spectroscopy (XANES) |
title_sort | oxidation states of copper in preservative treated wood as studied by x-ray absorption near edge spectroscopy (xanes) |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8794131/ https://www.ncbi.nlm.nih.gov/pubmed/35085335 http://dx.doi.org/10.1371/journal.pone.0263073 |
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