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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/171591
Non-fluorinated, sustainable, and durable superhydrophobic microarrayed surface for water-harvesting
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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.
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RIUS AYRA, Oriol, FIESTAS PARADELA, Sheil, LLORCA I ISERN, Núria. Non-fluorinated, sustainable, and durable superhydrophobic microarrayed surface for water-harvesting. _Coatings_. 2020. Vol. 10, núm. 4, pàgs. 314. [consulta: 26 de gener de 2026]. ISSN: 1944-8244. [Disponible a: https://hdl.handle.net/2445/171591]