Highly crystalline ionic covalent organic framework membrane for nanofiltration and charge-controlled organic pollutants removal

doi:10.1016/j.seppur.2020.117787

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	Highly crystalline ionic covalent organic framework membrane for nanofiltration and charge-controlled organic pollutants removal
	T. Chen; B. Li; W. Huang; C. Lin; G. Li; H. Ren; Y. Wu; S. Chen; W. Zhang and H. Ma
	2021
发表期刊	Separation and Purification Technology
ISSN	13835866
卷号	256
摘要	Organic pollutants are biological toxicity and should be removed from the environment. Membrane separation offers several advantages in organic pollutants removal such as high pollutants selectivity and high solvent permeability. Covalent organic framework membrane is regarded as an emerging porous membrane for nanofiltration owing to their permanent porosity and well-defined pore structure in various organic media. Herein, a self-standing 2D sulfonate anionic COF membrane with nanometer pore size and -SO3Na groups has been successfully prepared. The surface charge combines with nanopore sieving property endow the COF membrane high nanofiltration separation performances and charge-controlled organic molecular separation. The anionic membrane can effectively intercept > 99% of cationic organic pollutants, while maintaining excellent solvent permeability due to its rigid porous structure and high porosity. The density functional theory (DFT) calculation provides further understanding on the charge-controlled separation in ionic nanoporous membranes. Our work may open up a new avenue for developing charged COF membrane for nanofiltration and organic pollutants separation applications. 2020 Elsevier B.V.
DOI	10.1016/j.seppur.2020.117787
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收录类别	SCI ; EI
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65290
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	T. Chen,B. Li,W. Huang,et al. Highly crystalline ionic covalent organic framework membrane for nanofiltration and charge-controlled organic pollutants removal[J]. Separation and Purification Technology,2021,256.
APA	T. Chen.,B. Li.,W. Huang.,C. Lin.,G. Li.,...&W. Zhang and H. Ma.(2021).Highly crystalline ionic covalent organic framework membrane for nanofiltration and charge-controlled organic pollutants removal.Separation and Purification Technology,256.
MLA	T. Chen,et al."Highly crystalline ionic covalent organic framework membrane for nanofiltration and charge-controlled organic pollutants removal".Separation and Purification Technology 256(2021).

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