Bioinspired Hierarchical Surfaces Fabricated by Femtosecond Laser and Hydrothermal Method for Water Harvesting

doi:10.1021/acs.langmuir.8b04295

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	Bioinspired Hierarchical Surfaces Fabricated by Femtosecond Laser and Hydrothermal Method for Water Harvesting
	J.L.Lu; C.V.Ngo; S.C.Singh; J.J.Yang; W.Xin; Z.Yu; C.L.Guo
	2019
发表期刊	Langmuir
ISSN	0743-7463
卷号	35 期号:9 页码:3562-3567
摘要	The world is facing a global issue of water scarcity where two-thirds of the population does not have access to safe drinking water. Water harvesting from the ambient environment has a potential equivalent to similar to 10% of the fresh water available on the earth's surface, but its efficiency requires a special control of surface morphology. We report a novel facile physicochemical hybrid method that combines femtosecond laser structuring with hydrothermal treatment to create a surface with a well-arranged hierarchical nanoneedle structures. Polydimethylsiloxane treatment of the thus-produced hierarchical structures nurtured superhydrophobic functionality with a very low water sliding angle (similar to 3 degrees) and a high water adhesion ability. About 2.2 times higher water-collection efficiency was achieved using hierarchical structures over untreated flat Ti surfaces of the same area under a given experimental condition. The comparison of water-collection behavior with other samples showed that the improved efficiency is due to the structure, and wettability induced superior water attraction and removal ability. Moreover, a uniform water condensation under low humidity (28%) is achieved, which has potential applications in harvesting water from arid environments and in high-precision drop control.
关键词	superhydrophobic surface,tunable wettability,collection,condensation,air,Chemistry,Materials Science
DOI	10.1021/acs.langmuir.8b04295
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63159
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	J.L.Lu,C.V.Ngo,S.C.Singh,et al. Bioinspired Hierarchical Surfaces Fabricated by Femtosecond Laser and Hydrothermal Method for Water Harvesting[J]. Langmuir,2019,35(9):3562-3567.
APA	J.L.Lu.,C.V.Ngo.,S.C.Singh.,J.J.Yang.,W.Xin.,...&C.L.Guo.(2019).Bioinspired Hierarchical Surfaces Fabricated by Femtosecond Laser and Hydrothermal Method for Water Harvesting.Langmuir,35(9),3562-3567.
MLA	J.L.Lu,et al."Bioinspired Hierarchical Surfaces Fabricated by Femtosecond Laser and Hydrothermal Method for Water Harvesting".Langmuir 35.9(2019):3562-3567.

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