外文题目: Laser Direct Writing of Tree-Shaped Hierarchical Cones on a Superhydrophobic Film for High-Efficiency Water Collection
作者: Wang, Meng; Liu, Qian; Zhang, Haoran; Wang, Chuang; Wang, Lei; Xiang, Bingxi; Fan, Yongtao; Guo, Chuan Fei; Ruan, Shuangchen
刊名: ACS Appl. Mater. Interfaces
年: 2017 卷: 9 期: 34 页： 29248--29254
英文关键词:
laser direct writing; water collection; superhydrophobic; hierarchical patterns; microfluidics
ARTIFICIAL SPIDER SILKS; WETTING PROPERTIES; FOG COLLECTION; FABRICATION; SURFACES; WETTABILITY; TIO2; ELECTRONICS; PHOTOMASKS; TRANSPORT
英文摘要:
Directional water collection has stimulated a great deal of interest because of its potential applications in the field of microfluidics, liquid transportation, fog harvesting, and so forth. There have been some bio or bioinspired structures for directional water collection, from one-dimensional spider silk to two-dimensional star-like patterns to three-dimensional Nepenthes alata. Here we present a simple way for the accurate design and highly controllable driving of tiny droplets: by laser direct writing of hierarchical patterns with modified wettability and desired geometry on a superhydrophobic film, the patterned film can precisely and directionally drive tiny water droplets and dramatically improve the efficiency of water collection with a factor of similar to 36 compared with the original superhydrophobic film. Such a patterned film might be an ideal platform for water collection from humid air and for planar microfluidics without tunnels.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1021/acsami.7b08116


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