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Bioinspired Conical Copper Wire with Gradient Wettability for Continuous and Efficient Fog Collection
Author(s) -
Ju Jie,
Xiao Kai,
Yao Xi,
Bai Hao,
Jiang Lei
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201301876
Subject(s) - materials science , wetting , conical surface , copper , copper wire , temperature gradient , electrochemistry , concentration gradient , composite material , nanotechnology , metallurgy , electrode , chromatography , chemistry , quantum mechanics , physics
Inspired by the efficient fog collection on cactus spines , conical copper wires with gradient wettability are fabricated through gradient electrochemical corrosion and subsequent gradient chemical modification. These dual‐gradient copper wires’ fog‐collection ability is demonstrated to be higher than that of conical copper wires with pure hydrophobic surfaces or pure hydrophilic surfaces, and the underlying mechanism is also analyzed.