Modification of polyamide nanofiltration membrane with ultra-high multivalent cations rejections and mono-/divalent cation selectivity

• Published in: Desalination Vol. 527; p. 115553
• Main Authors: Hu, Ping, Yuan, Bingbing, Niu, Q. Jason, Chen, Kuo, Xu, Zewen, Tian, Bizhuo, Zhang, Xiaozhuan
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.04.2022
• Subjects: Dual-functional acyl chloride; High mono-/divalent cation selectivity; Nanofiltration membrane; Organic phase additive; Ultrahigh multivalent cations rejections; Nanofiltration membrane; Dual-functional acyl chloride; Ultrahigh multivalent cations rejections; High mono-/divalent cation selectivity; Organic phase additive

Due to their inherent negatively charged surface and large intra-membrane pore, the typical polyamide nanofiltration membranes possess the inferior retentions against Ca2+/Mg2+ and undesired mono-/divalent cation selectivity. Here, a novel dual-functional acyl chloride monomer comprising two protect...