Thin film composite (TFC) membranes easily suffer from fouling induced by oil and other pollutants during forward osmosis (FO) due to the relatively hydrophobic chemistry and rough structure of polyamide (PA). To achieve comprehensive anti-fouling properties, poly(2-methacryloyloxyethyl phosphorylcholine-co-2-aminoethyl methacrylate hydrochloride) (MPC-co-AEMA) was immobilized on top of a polyketone (PK)-based TFC membrane following a single-step simultaneous deposition with dopamine. The adhesive properties of polydopamine (PDA), as well as the covalent interactions between PDA and MPC-co-AEMA, ensured the firm immobilization of the MPC-co-AEMA on PA layer. As a result of the simultaneous deposition of PDA and MPC-co-AEMA, a high-performance and superhydrophilic and underwater superoleophobic TFC membrane was engineered. In addition, the outstanding water adsorption capacity of the polyamphoteric layer resulted in better protein adhesion mitigation. FO operation using various foulants also demonstrated a high fouling resistance of the PK-TFC-PDA/MPC membrane, especially during the treatment of wastewater emulsion containing high concentration of oil and bovine serum albumin (BSA). In summary, the findings in this study could provide insights into the preparation of anti-fouling membranes for wastewater purification using FO.

薄膜复合材料（TFC）膜由于聚酰胺（PA）的相对疏水化学和粗糙结构，在正向渗透（FO）期间很容易遭受油和其他污染物引起的结垢。为了获得全面的防污性能，将聚（2-甲基丙烯酰氧基氧乙基磷酰胆碱-甲基丙烯酸-2-氨基乙酯-甲基丙烯酸盐共聚物）（MPC-co-AEMA）固定在基于聚酮（PK）的TFC膜上，同时进行一步用多巴胺沉积。聚多巴胺（PDA）的粘合特性以及PDA和MPC-co-AEMA之间的共价相互作用确保了MPC-co-AEMA牢固地固定在PA层上。PDA和MPC-co-AEMA同时沉积的结果是，设计了一种高性能，超亲水性和水下超疏油性TFC膜。此外，多两性层的出色的吸水能力可更好地减轻蛋白质的粘附。使用各种污垢剂进行的FO操作还证明PK-TFC-PDA / MPC膜具有很高的抗污垢性，尤其是在处理含高浓度油和牛血清白蛋白（BSA）的废水乳液时。总而言之，这项研究的发现可以为使用FO净化废水的防污膜的制备提供见识。