Water permeability and ion sieving ability are the main indicators that determine the separation performance of nanofiltration membranes. Enlarging surface areas of permeable separation layers is an effective pathway to facilitate water flux while maintaining salt retention. Inspired by the condensation and cross-linking of amino groups/imines with acid chlorides to form dense polyamide networks, we proposed a strategy to enlarge separation surface areas of nanofiltration membranes by grafting highly porous porphyrin-aniline conjugated microporous polymers (PACMP) onto polyamide. Upon forming CMP-polyamide composite membranes via one-step interfacial polymerization, an ultra-permeable composite membrane (61.8 L m⁻² h⁻¹) was fabricated, with salt (Na₂SO₄) rejection rate above 91.6%. Besides, thanks to the reactive oxygen species produced by porphyrin groups of PACMPs, the in situ generated photoexcited singlet oxygen (¹O₂) can kill 98.5% of Escherichia coli and 99.7% of Staphylococcus aureus, imparting excellent antibacterial properties to the CMP-polyamide composite membranes.

透水性和离子筛分能力是决定纳滤膜分离性能的主要指标。扩大渗透性分离层的表面积是促进水通量同时保持盐保留的有效途径。受氨基/亚胺与酰氯缩合和交联形成致密聚酰胺网络的启发，我们提出了一种通过将高孔卟啉-苯胺共轭微孔聚合物（PACMP）接枝到聚酰胺上来扩大纳滤膜分离表面积的策略。通过一步界面聚合形成CMP-聚酰胺复合膜后，制备了一种超渗透复合膜（61.8 L m ^-2 h ^{-1 ），其中含有盐（Na}₂ SO ₄ )废品率91.6%以上。此外，由于PACMPs的卟啉基团产生活性氧，原位产生的光激发单线态氧（¹ O ₂）可以杀死98.5%的大肠杆菌和99.7%的金黄色葡萄球菌，赋予CMP-聚酰胺优异的抗菌性能复合膜。