用于盐水淡化的超薄共价有机框架膜的电化学界面聚合
Electrochemical Interfacial Polymerization toward Ultrathin COF Membranes for Brine Desalination.
作者信息
Wang Meidi, Wang Yutong, Zhao Junyi, Zou Jiyu, Liang Xu, Zhu Ziting, Zhu Jiashi, Wang Hongjian, Wang Yuhan, Pan Fusheng, Jiang Zhongyi
机构信息
Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300072, China.
出版信息
Angew Chem Int Ed Engl. 2023 Mar 20;62(13):e202219084. doi: 10.1002/anie.202219084. Epub 2023 Feb 17.
Ultrathin covalent organic framework (COF) membranes are urgently demanded in molecular/ionic separations. Herein, we reported an electrochemical interfacial polymerization strategy to fabricate ultrathin COF membranes with thickness of 85 nm, by actively manipulate self-healing effect and self-inhibiting effect. The resulting COF membrane exhibited superior performance in brine desalination with the permeation flux of 92 kg m h and the rejection of 99.96 %. Our electrochemical interfacial polymerization strategy enriches the fabrication approach of COF membranes and facilitates the rational design of ultrathin membranes.
分子/离子分离领域迫切需要超薄共价有机框架（COF）膜。在此，我们报道了一种电化学界面聚合策略，通过积极调控自愈效应和自抑制效应来制备厚度为85纳米的超薄COF膜。所得的COF膜在盐水脱盐方面表现出优异的性能，渗透通量为92千克·平方米·小时，截留率为99.96%。我们的电化学界面聚合策略丰富了COF膜的制备方法，并有助于超薄膜的合理设计。
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