干旱区生态环境知识资源中心(Arid): Solar-assisted smart nanofibrous membranes for atmospheric water harvesting

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DOI	10.1016/j.cej.2021.131601
	Solar-assisted smart nanofibrous membranes for atmospheric water harvesting
	Kim, Soyoung; Liang, Yejin; Kang, Seoktae; Choi, Heechul
通讯作者	Choi, H (corresponding author), Gwangju Inst Sci & Technol GIST, Sch Earth Sci & Environm Engn, 123 Cheomdangwagi Ro, Gwangju 61005, South Korea.
来源期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
EISSN	1873-3212
出版年	2021
卷号	425
英文摘要	The enormous reserves of atmospheric freshwater have been explored as a sustainable water resource to meet water needs in arid areas with suitable water sorbent material. Herein, we demonstrate a free-standing and super water-absorbing hydrogel nanofibrous membrane that turns airborne water vapor into potable water, even at low humidity levels. The hygroscopic behavior of LiCl in the thermo-responsive polymeric network enables the dried nanofiber membrane to initiate moisture sorption, and the nanofiber membrane turns into a soft hydrogel as it swells during water sorption. This hydrogel nanofiber exhibits record water uptake of 96%, 176%, and 273% at relative humidity values of 30%, 60%, and 80%, respectively. Due to the interesting hydrophilic-to-hydrophobic conformational change from temperature responsiveness of the nanofiber, liquid water rapidly oozes out with minimal energy consumption under solar irradiation. A lightweight, flexible, and scalable nanofiber membrane is highly desirable for efficient water harvesting, dehumidification, and evaporative cooling with low-grade energy consumption.
英文关键词	Nanofiber Thermo-responsive hydrogels Graphene oxide Hygroscopic salt Water harvesting
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000727818900003
WOS关键词	GRAPHENE OXIDE ; DESIGN ; LIQUID ; HEAT ; SEPARATION ; PROTEIN ; IONS ; SALT
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS研究方向	Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/373963
作者单位	[Kim, Soyoung; Liang, Yejin; Choi, Heechul] Gwangju Inst Sci & Technol GIST, Sch Earth Sci & Environm Engn, 123 Cheomdangwagi Ro, Gwangju 61005, South Korea; [Kang, Seoktae] Korea Adv Inst Sci & Technol KAIST, Dept Civil & Environm Engn, 291 Daehak ro, Daejeon 34141, South Korea
推荐引用方式 GB/T 7714	Kim, Soyoung,Liang, Yejin,Kang, Seoktae,et al. Solar-assisted smart nanofibrous membranes for atmospheric water harvesting[J],2021,425.
APA	Kim, Soyoung,Liang, Yejin,Kang, Seoktae,&Choi, Heechul.(2021).Solar-assisted smart nanofibrous membranes for atmospheric water harvesting.CHEMICAL ENGINEERING JOURNAL,425.
MLA	Kim, Soyoung,et al."Solar-assisted smart nanofibrous membranes for atmospheric water harvesting".CHEMICAL ENGINEERING JOURNAL 425(2021).