Bis(triethoxysilyl)ethane (BTESE) nanoparticles were incorporated into aromatic polyamide (PA) membranes via in-situ polymerization to prepare BTESE nanocomposite PA (BTESE-TFN) membranes for reverse osmosis. In-situ polymerization was utilized to produce BTESE nanoparticles with high dispersion in PA membranes by adding BTESE as precursors into PA membranes for in-situ polymerization. Organic bridged -C-C- in BTESE provided enhanced compatibility between BTESE nanoparticles and PA membranes. The BTESE-TFN membranes showed durability with stable RO performance for more than 96 h because of the high dispersion of BTESE nanoparticles and enhanced compatibility between BTESE nanoparticles and PA membranes. The BTESE nanoparticles increased surface roughness, thickness, hydrophilicity of PA membranes. The BTESE nanoparticles changed surfaces of PA membranes to looser structure with more pores and gaps. However, low loadings of BTESE nanoparticles in the BTESE-TFN membranes were observed due to low reactivity of Si-OC₂H₅ groups in BTESE. Even so, salt rejection of prepared TFN-0.12 membrane was slightly improved to 96.81%, compared with that of prepared pristine PA membrane. The TFN-0.12 membrane showed water flux of 1.6 L/(m²•h•bar), 25% higher than the water flux of pristine PA membrane because of enlargement of pore sizes in BTESE nanoparticles, formation of a loose and rough membrane surface and enhancement of hydrophilicity of the membrane surface. Furthermore, modification of organic bridged groups in the BTESE exhibited great potential to further optimize the water flux and durability of BTESE-TFN membranes.

通过原位聚合将双（三乙氧基甲硅烷基）乙烷（BTESE）纳米颗粒掺入芳族聚酰胺（PA）膜中，制备用于反渗透的BTESE纳米复合PA（BTESE-TFN）膜。通过将 BTESE 作为前体添加到 PA 膜中进行原位聚合，利用原位聚合制备在 PA 膜中具有高分散性的 BTESE 纳米颗粒。BTESE 中的有机桥接-CC- 增强了 BTESE 纳米颗粒和 PA 膜之间的相容性。由于 BTESE 纳米粒子的高分散性和 BTESE 纳米粒子与 PA 膜之间的相容性增强，BTESE-TFN 膜显示出耐用性和稳定的 RO 性能超过 96 小时。BTESE 纳米粒子增加了 PA 膜的表面粗糙度、厚度和亲水性。BTESE 纳米粒子将 PA 膜的表面改变为具有更多孔隙和间隙的更松散结构。然而，由于 Si-OC 的低反应性，在 BTESE-TFN 膜中观察到 BTESE 纳米颗粒的低负载量₂ H ₅组在 BTESE。尽管如此，与制备的原始 PA 膜相比，制备的 TFN-0.12 膜的脱盐率略有提高至 96.81%。TFN-0.12 膜的水通量为 1.6 L/(m ² •h•bar)，比原始 PA 膜的水通量高 25%，这是因为 BTESE 纳米颗粒的孔径扩大，形成了疏松粗糙的膜表面并增强膜表面的亲水性。此外，BTESE 中有机桥接基团的改性在进一步优化 BTESE-TFN 膜的水通量和耐久性方面表现出巨大潜力。