干旱区生态环境知识资源中心(Arid): Nanostructured Hybrid Hydrogels for Solar-Driven Clean Water Harvesting from the Atmosphere

Arid

DOI	10.3390/ma15217538
	Nanostructured Hybrid Hydrogels for Solar-Driven Clean Water Harvesting from the Atmosphere
	Uddin, Md. Nizam; Rab, Md. Fozle; Islam, A. K. M. Nazrul; Asmatulu, Eylem; Rahman, Muhammad M.; Asmatulu, Ramazan
通讯作者	Uddin, MN
来源期刊	MATERIALS
EISSN	1996-1944
出版年	2022
卷号	15 期号:21
英文摘要	The scarcity of useable water is severe and increasing in several regions of the Middle East, Central and Southern Asia, and Northern Africa. However, the earth's atmosphere contains 37.5 million billion gallons of water in the invisible vapor phase with fast replenishment. The United Nations Convention to Combat Desertification reports that by 2025 about 2.4 billion people will suffer from a lack of access to safe drinking water. Extensive research has been conducted during the last two decades to develop nature-inspired nanotechnology-based atmospheric water-harvesting technology (atmospheric water generator, AWG) to provide clean water to humanity. However, the performance of this technology is humidity sensitive, particularly when the relative humidity (RH) is high (>similar to 80% RH). Moreover, the fundamental design principle of the materials system for harvesting atmospheric water is mostly unknown. In this work, we present a promising technology for solar energy-driven clean water production in arid and semi-arid regions and remote communities. A polymeric electrospun hybrid hydrogel consisting of deliquescent salt (CaCl2) and nanomaterials was fabricated, and the atmospheric water vapor harvesting capacity was measured. The harvested water was easily released from the hydrogel under regular sunlight via the photothermal effect. The experimental tests of this hybrid hydrogel (PAN/AM/graphene/CaCl2) demonstrated the feasibility of around 1.04 L of freshwater production per kilogram of the hydrogel (RH 60%). The synergistic effect enabled by photothermal materials and deliquescent salt in the hydrogel network architecture presents controllable interaction with water molecules, simultaneously realizing efficient water harvesting. This technology requires no additional input of energy. When considering the global environmental challenges and exploring the available technologies, a sustainable clean water supply for households, industry, and agriculture can be achieved from the air using this economical and practical technology.
英文关键词	atmospheric water generator hydrogel relative humidity electrospinning fog harvesting
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000881319600001
WOS关键词	SILICA-GEL ; SORBENTS ; SORPTION ; AIR ; POLYACRYLAMIDE
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393762
推荐引用方式 GB/T 7714	Uddin, Md. Nizam,Rab, Md. Fozle,Islam, A. K. M. Nazrul,et al. Nanostructured Hybrid Hydrogels for Solar-Driven Clean Water Harvesting from the Atmosphere[J],2022,15(21).
APA	Uddin, Md. Nizam,Rab, Md. Fozle,Islam, A. K. M. Nazrul,Asmatulu, Eylem,Rahman, Muhammad M.,&Asmatulu, Ramazan.(2022).Nanostructured Hybrid Hydrogels for Solar-Driven Clean Water Harvesting from the Atmosphere.MATERIALS,15(21).
MLA	Uddin, Md. Nizam,et al."Nanostructured Hybrid Hydrogels for Solar-Driven Clean Water Harvesting from the Atmosphere".MATERIALS 15.21(2022).