Multibioinspired Wettable Patterned Slippery Surface for Efficient Water Harvesting. Issue 20 (22nd September 2021)

• Record Type: Journal Article
• Authors: Lyu, Pei; Zhang, Xiangyi; Peng, Mengyuan; Shang, Bin; Liu, Xin
• Is Part Of: Advanced materials interfaces. Volume 8:Issue 20(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-09-22
• Subjects: droplet nucleation -- liquid repellent -- slippery surface -- water harvesting -- wettable patterned; Materials science -- Periodicals; 620.11
• DOI: 10.1002/admi.202100691
• Languages: English
• ISSNs: 2196-7350

Abstract

Abstract: It is highly desirable to endow surfaces with both exceptional droplet nucleation and removal capacities for water harvesting, but which still remains great challenges. Inspired by the water collection features of desert beetles and Nepenthes pitcher, this paper presents a facile and simple strategy to fabricate a wettable patterned slippery surface (WPSS). Different from desert beetles‐inspired water harvesting materials which the (super) hydrophilic bumps are constructed on a (super) hydrophobic background, the patterned hydrophilic CuO bumps in this study are surrounded by the silicone oil layer. Owing to the patterned hydrophilic bumps and slippery interface, as well as the flexibility in manipulating the relative ratio between them, the innovated WPSS is capable of rapidly nucleating and removing water droplets. It outperforms conventional liquid‐repellent surfaces in water harvesting performance. Abstract : Inspired by desert beetles and Nepenthes pitcher, a wettable patterned slippery surface (WPSS) is prepared through a facile strategy. Owing to the patterned hydrophilic bumps and slippery interface, as well as the flexibility in manipulating the relative ratio between them, the WPSS is capable of rapidly nucleating and removing water droplets, which outperforms conventional liquid‐repellent surfaces in water harvesting performance.