干旱区生态环境知识资源中心(Arid): All-Weather Atmospheric Water Harvesting Enabled by Hygroscopic Hydrogel Paint

Arid

DOI	10.1021/acsapm.3c01561
	All-Weather Atmospheric Water Harvesting Enabled by Hygroscopic Hydrogel Paint
	Wang, Ling; Li, Yawen; Yu, Yang; Guo, Luxuan; Li, Chencan; Zhang, Zhuo
通讯作者	Zhang, Z
来源期刊	ACS APPLIED POLYMER MATERIALS
ISSN	2637-6105
出版年	2023
卷号	5 期号:11 页码:9063-9075
英文摘要	Hygroscopic hydrogels have been receiving widespread attention as effective atmospheric water harvesters due to their freshwater production capabilities for alleviating water scarcity stress in arid regions. Nevertheless, not only can the hydrophilic networks notably hinder water release but also harsh preparation conditions (UV light and oxygen-free environment) are required to achieve free-radical polymerization. Herein, facile and processable moisture-harvesting hydrogel paints (MHPs) have been developed to address these challenges. Benefiting from the high tunability and processability, the MHPs can be optionally cured into moisture-harvesting hydrogels (MHGs) with different sizes by various operations according to actual circumstances, manifesting their potential for multiscenario applications. Via the synergistic effect of thermal-responsive networks and hygroscopic components, the MHGs can harvest atmospheric water with a broad range of relative humidities (RH, 10-90%), high water uptake (highest similar to 50% of hydrogel's own weight at similar to 90% RH, 25 degrees C within 24 h), fast moisture-absorbing rate (up to similar to 0.23 g g(-1) h(-1) at similar to 90% RH, 25 degrees C), low energy, rapid water release rate (similar to 0.2 g g(-1) h(-1) at similar to 90% RH, 4 degrees C), and outstanding cycling stability. Also demonstrated is a proof-of-concept outdoor water-collecting system, which possesses similar to 2.5 mL g(-1) (L kg(-1)) water yield per day to satisfy an adult's daily water demand. Our low-cost and easy-to-scale-up MHGs can provide a viable solution to design next-generation atmospheric water harvesters for achieving efficient, sustainable, and multiscenario applications.
英文关键词	atmospheric water harvester hydrogel paint thermal-responsive network hygroscopic component multiscenario application
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001103626900001
WOS类目	Materials Science, Multidisciplinary ; Polymer Science
WOS研究方向	Materials Science ; Polymer Science
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394936
推荐引用方式 GB/T 7714	Wang, Ling,Li, Yawen,Yu, Yang,et al. All-Weather Atmospheric Water Harvesting Enabled by Hygroscopic Hydrogel Paint[J],2023,5(11):9063-9075.
APA	Wang, Ling,Li, Yawen,Yu, Yang,Guo, Luxuan,Li, Chencan,&Zhang, Zhuo.(2023).All-Weather Atmospheric Water Harvesting Enabled by Hygroscopic Hydrogel Paint.ACS APPLIED POLYMER MATERIALS,5(11),9063-9075.
MLA	Wang, Ling,et al."All-Weather Atmospheric Water Harvesting Enabled by Hygroscopic Hydrogel Paint".ACS APPLIED POLYMER MATERIALS 5.11(2023):9063-9075.