Lin Bo, Tan Huifen, Liu Wenchao, Gao Congjie, Pan Qiaoming
Second Institute of Oceanography of the State Oceanic Administration Hangzhou 310012 China
Blue Star (Hangzhou) Membrane Industry Co., Ltd. Hangzhou 311106 China.
RSC Adv. 2020 Apr 23;10(27):16168-16178. doi: 10.1039/d0ra00480d. eCollection 2020 Apr 21.
Thin-film composite (TFC) nanofiltration (NF) membranes were fabricated the co-deposition of taurine, tannic acid (TA), and polyethyleneimine (PEI), followed by subsequent interfacial polymerization with trimesoyl chloride (TMC) on the surface of the polysulfone ultrafiltration substrates. The surface properties, including the roughness, hydrophilicity, surface potential, and NF performances were facilely tuned by varying the taurine content for the prepared TFC membranes. In addition, the as-prepared TFC NF membranes had an excellent antifouling property and flux recovery ratio (FRR) in humic acid (HA), bovine serum albumin (BSA) and sodium alginate (SA) filtration tests. These results also revealed that the taurine content controlled the formation of the striped surface. Thus, this work provided a viable strategy for fabricating TFC NF membranes with high selectivity and outstanding antifouling ability.
通过牛磺酸、单宁酸（TA）和聚乙烯亚胺（PEI）的共沉积，然后在聚砜超滤基材表面与均苯三甲酰氯（TMC）进行界面聚合，制备了薄膜复合（TFC）纳滤（NF）膜。通过改变制备的TFC膜中牛磺酸的含量，可以轻松调节其表面性质，包括粗糙度、亲水性、表面电位和纳滤性能。此外，所制备的TFC纳滤膜在腐殖酸（HA）、牛血清白蛋白（BSA）和海藻酸钠（SA）过滤试验中具有优异的抗污染性能和通量恢复率（FRR）。这些结果还表明，牛磺酸含量控制了条纹表面的形成。因此，这项工作为制备具有高选择性和出色抗污染能力的TFC纳滤膜提供了一种可行的策略。
