期刊
出版社
ROYAL SOC
DOI: 10.1098/rsta.2019.0127
关键词
heterogeneous wettability; triangular pattern; water collection; condensation; Laplace pressure gradient; cactus
资金
- seed grant GOGCAP from the Center for Applied Plant Sciences (CAPS) of The Ohio State University
Water condenses on a surface in ambient environment if the surface temperature is below the dew point. For water collection, droplets should be transported to storage before the condensed water evaporates. In this study, Laplace pressure gradient inspired by conical spines of cactus plants is used to facilitate the transport of water condensed in a triangular pattern to the storage. Droplet condensation, transportation and water collection rate within the bioinspired hydrophilic triangular patterns with various lengths and included angles, surrounded by superhydrophobic regions, were explored. The effect of relative humidity was also explored. This bioinspired technique can be used to develop efficient water collection systems. This article is part of the theme issue 'Bioinspired materials and surfaces for green science and technology (part 2)'.
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