Laser Direct Writing of Tree-Shaped Hierarchical Cones on a Superhydrophobic Film for High-Efficiency Water Collection

Wang, Meng1,2; Liu, Qian4; Zhang, Haoran4; Wang, Chuang4; Wang, Lei4; Xiang, Bingxi1,2; Fan, Yongtao5; Guo, Chuan Fei3; Ruan, Shuangchen1,2

2017-08-30

10.1021/acsami.7b08116

ACS Applied Materials & Interfaces   影响因子和分区

1944-8244

1944-8252

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.

laser direct writing water collection superhydrophobic hierarchical patterns microfluidics

SCI ; EI

英语

通讯

Shenzhen Science and Technology Planning[JCYJ20160422142912923]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000409395500120

AMER CHEMICAL SOC

20173604126498

Drops ; Efficiency ; Hydrophobicity ; Microfluidics

Microfluidics:632.5.1 ; Waveguides:714.3 ; Production Engineering:913.1 ; Physical Properties of Gases, Liquids and Solids:931.2

Web of Science

1.Shenzhen Univ, Shenzhen Key Lab Laser Engn, Coll Optoelect Engn, Shenzhen 518060, Peoples R China
2.Shenzhen Univ, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov, Coll Optoelect Engn, Shenzhen 518060, Peoples R China
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
4.Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China
5.Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China

Wang, Meng,Liu, Qian,Zhang, Haoran,et al. Laser Direct Writing of Tree-Shaped Hierarchical Cones on a Superhydrophobic Film for High-Efficiency Water Collection[J]. ACS Applied Materials & Interfaces,2017,9(34):29248-29254.

Wang, Meng.,Liu, Qian.,Zhang, Haoran.,Wang, Chuang.,Wang, Lei.,...&Ruan, Shuangchen.(2017).Laser Direct Writing of Tree-Shaped Hierarchical Cones on a Superhydrophobic Film for High-Efficiency Water Collection.ACS Applied Materials & Interfaces,9(34),29248-29254.

Wang, Meng,et al."Laser Direct Writing of Tree-Shaped Hierarchical Cones on a Superhydrophobic Film for High-Efficiency Water Collection".ACS Applied Materials & Interfaces 9.34(2017):29248-29254.