干旱区生态环境知识资源中心(Arid): Durable superhydrophobic coating based on halloysite nanotubes for versatile oil/water separation and reusable water collection

Arid

DOI	10.1016/j.surfin.2024.104168
	Durable superhydrophobic coating based on halloysite nanotubes for versatile oil/water separation and reusable water collection
	Hu, Yuzhu; Zhou, Meng; Fu, Heqing
通讯作者	Fu, HQ
来源期刊	SURFACES AND INTERFACES
ISSN	2468-0230
出版年	2024
卷号	46
英文摘要	Fog water collection gains increasing attention for harvesting atmospheric water to solve the water resource crisis in arid or semi-arid areas. In this work, a durable superhydrophobic coating based on halloysite nanotubes (HNT) for water collection is fabricated by introducing 1H,1H,2H,2H-perfluorodecyl trimethoxysilane (PFTS) modified HNT into a hydrophobic polydimethylsiloxane (PDMS) coating to construct a rough and superhydrophobic surface. The dip-coating method is employed to apply the coatings onto various substrates. The surface wettability, water collection rate, mechanical stability, and durability, oil/water separation efficiency and flux, and oil absorption capacity are investigated in detail. When the content of fluorinated modified HNT (FHNT) is 15 %, superhydrophobic F-HNT@PDMS coated fabrics with a high water contact angle (157.3 degrees) as well as a low sliding angle (3.7 degrees) are obtained, and the treated fabrics show excellent self-cleaning ability. After 100 mechanical wear cycles, the coated fabrics remain superhydrophobicity, and the oil/water separation efficiency is maintained above 99.5 %. Furthermore, different substrates dip-coated with F-HNT@PDMS exhibit highefficiency water collection rates of 952.25-1058.5 mg.cm(-2).h(-1). Therefore, this work provides a feasible strategy for preparing a durable superhydrophobic coating with a high-efficiency water collection rate and is expected to be applied in fog water harvesting in scarce areas.
英文关键词	Halloysite nanotubes Superhydrophobic coating Water collection Oil/water separation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001223920800001
WOS关键词	PROTECTION
WOS类目	Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS研究方向	Chemistry ; Materials Science ; Physics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405689
推荐引用方式 GB/T 7714	Hu, Yuzhu,Zhou, Meng,Fu, Heqing. Durable superhydrophobic coating based on halloysite nanotubes for versatile oil/water separation and reusable water collection[J],2024,46.
APA	Hu, Yuzhu,Zhou, Meng,&Fu, Heqing.(2024).Durable superhydrophobic coating based on halloysite nanotubes for versatile oil/water separation and reusable water collection.SURFACES AND INTERFACES,46.
MLA	Hu, Yuzhu,et al."Durable superhydrophobic coating based on halloysite nanotubes for versatile oil/water separation and reusable water collection".SURFACES AND INTERFACES 46(2024).