Spectral characterization for the evaluation of a protective coating on dolomite by visible and near infrared spectroscopy
[EN] Calcareous heritage stones are essential to the European cultural heritage but vulnerable to weathering that compromises their structural and aesthetic integrity. Graphene oxide (GO) emerges a promising protective coating, enhancing resistance to climatic aggressions while preserving the stone&...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universidad de León |
| Repositorio: | BULERIA. Repositorio Institucional de la Universidad de León |
| OAI Identifier: | oai:buleria.unileon.es:10612/26749 |
| Acceso en línea: | https://www.sciencedirect.com/science/article/pii/S2666523925001746 https://hdl.handle.net/10612/26749 |
| Access Level: | acceso abierto |
| Palabra clave: | Geodinámica Geología Graphene oxide Heritage protection Near-infrared spectroscopy Dolomite 2506.16 Teledetección (Geología) |
| Sumario: | [EN] Calcareous heritage stones are essential to the European cultural heritage but vulnerable to weathering that compromises their structural and aesthetic integrity. Graphene oxide (GO) emerges a promising protective coating, enhancing resistance to climatic aggressions while preserving the stone's appearance and reducing restoration costs. To ensure effective application and to monitor durability, rapid and consistent on-site analytical methods are needed. This study evaluates infrared spectroscopy as a non-destructive and reliable tool for the characterization and quantification of GO coatings applied to dolomite stones coming from two different Spanish quarries. Using a partial least squares regression, spectral data enabled accurate assessment of the coating presence, concentration (which was tested in the range from 0 to 16.5 µg·cm⁻²), and uniformity. This work establishes vibrational spectroscopy as a powerful in situ technique for monitoring protective coatings on heritage stones, providing a measurable and reliable framework to safeguard cultural assets against environmental degradation |
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