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Title: | Non-fluorinated, sustainable, and durable superhydrophobic microarrayed surface for water-harvesting |
Author: | Rius Ayra, Oriol Fiestas Paradela, Sheil Llorca i Isern, Núria |
Keywords: | Superfícies hidrofòbiques Galvanoplàstia Conservació de l'aigua Durabilitat (Enginyeria) Desenvolupament sostenible Hydrophobic surfaces Electroplating Water conservation Service life (Engineering) Sustainable development |
Issue Date: | 26-Mar-2020 |
Publisher: | MDPI |
Abstract: | Water scarcity is a worldwide issue that significantly affects the environment, population, and economy of the arid zones. In this study, we report a straightforward method for water-harvesting based on modifications of the surface wettability. Using magnesium chloride, lauric acid, and electrodeposition process, a superhydrophobic surface (155°) is obtained. Morphological characterization techniques allow determination of the characteristic flower-like microstructures combined with close packed nanoarrays that lead to the hierarchical structure. Furthermore, the coating presents vertically aligned microarrays in a non-linear cone morphology formed by dynamic templating of hydrogen bubbles. From a chemical point of view, magnesium laurate is responsible for the surface tension decrease. To determine the durability of the obtained surface ultra-violet (UV) light test and abrasive paper test, tests are carried out revealing high durability against these severe conditions. The water-harvesting ability of the superhydrophobic surface is studied at 45° and 90° tilted samples. The capacity of the water to be harvested efficiently is found to be at 90° tilt under fog conditions. The use of green reactants associated with this hierarchical structure broadens a new scope for sustainable freshwater collection and it becomes an excellent example of a green solution. |
Note: | Reproducció del document publicat a: https://doi.org/10.3390/coatings10040314 |
It is part of: | Coatings, 2020, vol. 10, num. 4, p. 314 |
URI: | http://hdl.handle.net/2445/171591 |
Related resource: | https://doi.org/10.3390/coatings10040314 |
ISSN: | 1944-8244 |
Appears in Collections: | Articles publicats en revistes (Ciència dels Materials i Química Física) |
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File | Description | Size | Format | |
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704072.pdf | 7.62 MB | Adobe PDF | View/Open |
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