干旱区生态环境知识资源中心(Arid): Water collection and transportation on superhydrophilic/ superhydrophobic bioinspired heterogeneous wettability surface

Arid

DOI	10.1016/j.colsurfa.2024.133472
	Water collection and transportation on superhydrophilic/ superhydrophobic bioinspired heterogeneous wettability surface
	Yang, Chong; Peng, Yi; Lv, Jin; Guan, Xiaoya; You, Hang
通讯作者	Peng, Y
来源期刊	COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN	0927-7757
EISSN	1873-4359
出版年	2024
卷号	687
英文摘要	In recent years, the ability of superhydrophilic/superhydrophobic bioinspired heterogeneous wettability (SSBHW) surfaces to collect freshwater has gained significant attention due to their potential to mitigate water scarcity. Inspired by nature's creatures, this paper presents an SSBHW surface that can efficiently collect freshwater resources from the atmosphere, drawing inspiration from cactus needles and spider silk spindles. The superhydrophobic (SHO) surface was prepared by wet etching and low surface energy modification on copper surface. Based on the SHO surface, the superhydrophilic (SHI) patterns consisting of spindle-shaped and wedgeshaped were constructed by laser ablation. The prepared SHI pattern was not only trapped airborne droplets but also enabled the directional transport of droplets. To enhance the efficiency of water collection, the smaller spindle-shaped pattern spacing in the SHO region was designed, which help to transport the condensed water quickly towards the SHI region because of the surface energy gradient force. The synergistic effect between the advantages offered by the SHO and SHI surfaces results in a significant improvement in water collection efficiency. The water collection efficiency of the SSBHW surface is 870 mg cm -2 h-1, which is 3.32 and 2.2 times higher than that of the SHI and SHO surfaces, respectively. In addition, the mechanism of enhancement of the moisture harvesting behavior of inhomogeneous wettable surfaces was analyzed. This work provides a new strategy for the study of catchment surfaces, making it an effective solution for obtaining fresh water resources in arid regions.
英文关键词	Heterogeneous wettability Water collection Transport Condensation Laplace pressure Surface energy gradient force
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001199505900001
WOS关键词	FIBERS
WOS类目	Chemistry, Physical
WOS研究方向	Chemistry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403222
推荐引用方式 GB/T 7714	Yang, Chong,Peng, Yi,Lv, Jin,et al. Water collection and transportation on superhydrophilic/ superhydrophobic bioinspired heterogeneous wettability surface[J],2024,687.
APA	Yang, Chong,Peng, Yi,Lv, Jin,Guan, Xiaoya,&You, Hang.(2024).Water collection and transportation on superhydrophilic/ superhydrophobic bioinspired heterogeneous wettability surface.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,687.
MLA	Yang, Chong,et al."Water collection and transportation on superhydrophilic/ superhydrophobic bioinspired heterogeneous wettability surface".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 687(2024).