Ultrathin polyamide nanofiltration membranes with tunable chargeability for multivalent cation removal

• Published in: Journal of membrane science Vol. 642; p. 119971
• Main Authors: Wang, Zhen, You, Xinda, Yang, Chao, Li, Wenwen, Li, Yafei, Li, Ya, Shen, Jianliang, Zhang, Runnan, Su, Yanlei, Jiang, Zhongyi
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.02.2022
• Subjects: branched chain amino acids; cation-exchange membranes; electrical charges; heavy metals; Interfacial polymerization; magnesium chloride; metal ions; nanocomposites; Nanofiltration; polyamides; Polyethyleneimine; polymerization; Positive charge; Ultrathin polyamide nanofilms; water purification; Ultrathin polyamide nanofilms; Polyethyleneimine; Interfacial polymerization; Nanofiltration; Positive charge

Positively charged nanofiltration membranes are promising in water softening and heavy metal ion removal. However, facile modulation on their chargeability remains a great challenge. Here, we proposed a charged-monomer-engineered interfacial polymerization toward positively charged polyamide membran...