Facile fabrication of COF-LZU1/PES composite membrane via interfacial polymerization on microfiltration substrate for dye/salt separation

By Yikai Su, Xi Yan, Yan Chen, Xiaojing Guo, Xingfan Chen, Wan‐Zhong Lang. 2021

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Abstract Covalent organic frameworks (COFs) have attracted great interest as advanced membrane materials due to their uniform channel structure and high porosity. In this work, COF-LZU1/PES composite membranes were prepared via interfacial polymerization (IP) process, and the thin and defectless COFs active layers were successfully grown on poly (ether sulfone) (PES) microfiltration substrates with 1,3,5-triformylbenzene (TFB) and p-phenylenediamine (PDA) as precursors. The prepared COF-LZU1/PES composite membranes exhibit a high rejection rate (>99.0%) for the dyes with molecular size above 1.5 nm and nonselective permeation for inorganic salts (

Subfields: Materials Chemistry, Mechanical Engineering, Water Science and Technology

View Paper: https://www.semanticscholar.org/paper/2e66e935c08c84b1f4c4dd0834417cfe42b4c59b