干旱区生态环境知识资源中心(Arid): Two-Dimensional Covalent Organic Frameworks as Tailor-Made Scaffolds for Water Harvesting

Arid

DOI	10.1002/chem.202302399
	Two-Dimensional Covalent Organic Frameworks as Tailor-Made Scaffolds for Water Harvesting
	Wen, Fuxiang; Wu, Xinyu; Li, Xiangyu; Huang, Ning
通讯作者	Huang, N
来源期刊	CHEMISTRY-A EUROPEAN JOURNAL
ISSN	0947-6539
EISSN	1521-3765
出版年	2023
卷号	29 期号:68
英文摘要	Developing materials to harvest water from the air is of great importance to alleviate the water shortage for people living in arid regions, where the annual average relative humidity (RH) is lower than 0.4. In this work, we report a general nitrogen atom incorporation strategy to prepare high-performance covalent organic frameworks (COFs) for water harvesting from the air in arid areas. A series of COFs, namely COF-W1, COF-W2, and COF-W3 were developed for this purpose. Different contents of nitrogen were embedded into COFs by incorporating pyridine units into the building blocks. With the increasing content of nitrogen from COF-W1 to COF-W3, the inflection points of their water isotherms shift distinctly from RH values from 0.65 to 0.25. Significantly, COF-W3 exhibits the lowest inflection point at a low RH value of 0.25 and reaches a high uptake capacity of 0.28 g g-1 at 25 degrees C with a low hysteresis loop. Moreover, the gram-scale COF-W3 retains its high performance, which renders it more attractive in water harvesting. This work demonstrates the feasibility of this nitrogen incorporation strategy to acquire high-performance COFs as water harvesters in the future. Water harvesting from the air: three covalent organic frameworks (COFs) were synthesized by incorporating different content of nitrogen. Higher nitrogen content is advantageous to lower their inflection points in water isotherms. The high performance of these COFs validated the feasibility of harnessing this strategy to prepare efficient COFs-based water harvesters.image
英文关键词	covalent organic frameworks porous organic polymers two-dimensional nanomaterials water harvesting
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001090354500001
WOS关键词	ADSORPTION ; DESIGN ; STORAGE
WOS类目	Chemistry, Multidisciplinary
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/2XILL650/395737
推荐引用方式 GB/T 7714	Wen, Fuxiang,Wu, Xinyu,Li, Xiangyu,et al. Two-Dimensional Covalent Organic Frameworks as Tailor-Made Scaffolds for Water Harvesting[J],2023,29(68).
APA	Wen, Fuxiang,Wu, Xinyu,Li, Xiangyu,&Huang, Ning.(2023).Two-Dimensional Covalent Organic Frameworks as Tailor-Made Scaffolds for Water Harvesting.CHEMISTRY-A EUROPEAN JOURNAL,29(68).
MLA	Wen, Fuxiang,et al."Two-Dimensional Covalent Organic Frameworks as Tailor-Made Scaffolds for Water Harvesting".CHEMISTRY-A EUROPEAN JOURNAL 29.68(2023).