Grontoft, T. and Marchiori, E. and Odlyha, Marianne (2018) Response of lead deposited on glass to acetic acid exposure, with potential for its application as an acetic acid dosimeter/sensor. e-PRESERVATION Science 15 , pp. 9-16. ISSN 1854-3928.
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Abstract
Abstract Small glass substrates were coated with a thin granular lead film by thermal vapour deposition in order to test the feasibility of using lead-coated glass as sensors for detecting the presence of gaseous acetic acid in air. The lead glass samples were exposed to acetic acid in increasing concentrations, at a controlled temperature of 23oC and 54% relative humidity for a period of 60 days. The change in the lead films on exposure was systematically investigated by measuring the variation in light transmission at a wavelength of 379 nm. Initial corrosion of the deposited reactive thin lead films leading to lead oxide and lead hydroxycarbonates and/or lead carbonates probably occurred. The analysis showed that the main response was due to corrosion of the lead film and granules with conversion to lead hydroxyl-carbonates and/or carbonates and formation of lead acetate. In addition, about 30% of the response was found to be due to acetic acid adsorption on the lead glass samples. After about 15 days exposure significant saturation and decrease in sensitivity was observed.
Metadata
| Item Type: | Article |
|---|---|
| Keyword(s) / Subject(s): | lead vapour deposition, granular lead film, glass substrate, acetic acid sensor, lead oxidation, light absorbance |
| School: | Birkbeck Faculties and Schools > Faculty of Science > School of Natural Sciences |
| Research Centres and Institutes: | Structural Molecular Biology, Institute of (ISMB) |
| Depositing User: | Marianne Odlyha |
| Date Deposited: | 17 Oct 2018 10:07 |
| Last Modified: | 02 Aug 2023 17:45 |
| URI: | https://eprints.bbk.ac.uk/id/eprint/24689 |
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