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Integrative Bioinspired Surface with Wettable Patterns and Gradient for Enhancement of Fog Collection

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posted on 19.02.2019 by Yan Xing, Weifeng Shang, Qianqian Wang, Shile Feng, Yongping Hou, Yongmei Zheng
A novel integrative bioinspired surface with wettable patterns and gradient (WPGS) is proposed for fog collection via a novel anodic oxidation strategy. We study the water collection behaviors on WPGS with different parameters. Quantitative force analysis is presented, providing evidence for the underlying mechanism leading to the directional motion of the droplet, which is consistent with the experimental results. Such a surface can not only improve the fog droplet capture performance effectively owing to wettable patterns but also accelerate surface regeneration by taking full advantage of the cooperation of multidriving forces, leading to a further fog collection enhancement.