Abstract Herein, we fabricated two types of electrospun membrane using: 1) sulfonated poly (arylene ether sulfone), which needs chemical cross-linking to increase its mechanical strength, and 2) thermally rearranged poly (benzoxazole-co-imide), which is mechanically robust while requiring the hydrophilic coating. With a high porosity and low structure parameter of the support layer, two thin film composite (TFC) membranes were fabricated via interfacial polymerization on the support layer using 1,3,5-bezenetricarbonyl trichloride (TMC) and m-phenylene diamine (MPD) monomers. Chlorine modification using NaOCl solution was applied to two TFC membranes (denoted as XBPSH-TFC-Cl and XPBO-TFC-Cl, respectively) to improve water permeability (A) of the polyamide selective layer, while maintaining decent salt rejection values (R). As a result, the highly efficient XPBO-TFC-Cl achieved a peak power density of 26.6 W·m−2 at 21 bar using 1 M NaClaq and deionized (D.I.) water as draw and feed solutions, respectively. According to the modeling results, XPBO-TFC-Cl was less affected by the adverse phenomena (such as concentration polarization and reverse salt permeation), and showed lower performance reduction for various feed sources compared to XBPSH-TFC-Cl. These results demonstrate the potential of the next generation TFC membranes, which are commonly used for power generation and liquid separation.

中文翻译：

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用于压力延迟渗透的高度坚固且透水的薄膜复合膜在 21 巴下产生 26 W·m-2

摘要在此，我们使用以下材料制造了两种类型的电纺膜：1）磺化聚（亚芳基醚砜），需要化学交联以增加其机械强度，以及 2）热重排聚（苯并恶唑-共-酰亚胺），它是机械坚固，同时需要亲水涂层。利用支撑层的高孔隙率和低结构参数，使用 1,3,5-苯三羰基三氯化物 (TMC) 和间苯二胺 (MPD) 在支撑层上通过界面聚合制备了两种薄膜复合 (TFC) 膜单体。使用 NaOCl 溶液对两个 TFC 膜（分别表示为 XBPSH-TFC-Cl 和 XPBO-TFC-Cl）进行氯改性，以提高聚酰胺选择性层的透水性 (A)，同时保持良好的盐截留率 (R) . 因此，高效的 XPBO-TFC-Cl 分别使用 1 M NaClaq 和去离子 (DI) 水作为汲取和进料溶液，在 21 bar 下实现了 26.6 W·m-2 的峰值功率密度。根据建模结果，与 XBPSH-TFC-Cl 相比，XPBO-TFC-Cl 受不良现象（如浓差极化和反向盐渗透）的影响较小，并且对各种进料源的性能下降幅度较小。这些结果证明了通常用于发电和液体分离的下一代 TFC 膜的潜力。XPBO-TFC-Cl 受不良现象（如浓差极化和反向盐渗透）的影响较小，与 XBPSH-TFC-Cl 相比，各种进料源的性能下降幅度较小。这些结果证明了通常用于发电和液体分离的下一代 TFC 膜的潜力。XPBO-TFC-Cl 受不利现象（如浓差极化和反向盐渗透）的影响较小，与 XBPSH-TFC-Cl 相比，各种进料源的性能下降幅度较小。这些结果证明了通常用于发电和液体分离的下一代 TFC 膜的潜力。