Antifouling sulfonated polyamide nanofiltration hollow fiber membrane prepared with mixed diamine monomers of BDSA and PIP

作者：Huang, Ben-Qing; Xu, Zhen-Liang; Ding, Hao; Miao, Ming-Che; Tang, Yong-Jian^*

来源：RSC Advances, 2017, 7(89): 56629-56637.

DOI：10.1039/c7ra11632b

• FILM COMPOSITE MEMBRANE
• INTERFACIAL POLYMERIZATION
• AQUEOUS-PHASE
• WATER FLUX
• PERFORMANCE
• FABRICATION
• SEPARATION
• PROPERTY
• REMOVAL
• BHTTM

A novel high-flux sulfonated polyamide nanofiltration (NF) hollow fiber membrane was made from the mixed monomers of 2,2'-benzidinedisulfonic acid (BDSA) and piperazine (PIP). By optimizing the preparation parameters (TMC concentration, reaction time and BDSA/PIP mixing ratio), the optimized NF membrane possessed a pure water permeability (PWP) of 49.1 L m(-2) h(-1) and a Na2SO4 rejection of 95.5% under 4 bar. The molecular weight cut off (MWCO) of the BDSA/PIP NF membrane was about 400 Da. Furthermore, in a long-term antifouling test with 0.3 g L-1 bovine serum albumin (BSA) solution, the total flux decline rate (FDR) and the flux recovery ratio (FRR) of the membrane were 16.7% and 85.7% respectively, which indicated the good antifouling properties and application prospects of the TFC NF membrane.

• 出版日期2017
• 单位华东理工大学; 化学工程联合国家重点实验室