Fabrication of nanofiltration membranes via covalent layer-by-layer self-assembly for charged organic pollutants treatment

Effective separation of dyes/salts by sulfonated covalent organic framework membranes based on phenolamine network conditioning

“…[22][23][24] By adopting this cost-effective and straightforward modication method, hydrophobic membranes can be transformed into hydrophilic membranes, while almost not altering the membrane's pore structure. 25 The number of ethyleneimine units or the spacer length in polyamines signicantly inuences the morphology of catechol/polyamine polymers. When short-chain polyamines are used, the resulting oligomers have a higher distribution density of benzene rings.…”