In recent years, polyphenylene sulfide (PPS) membranes have gained immense attention owing to their excellent separation performance. However, a single material is often insufficient in achieving desirable material properties. To this end, combining two or more materials to form composites is an efficient approach. In this study, a polyphenylene sulfide/oxidized polyphenylene sulfide (PPS/O-PPS) composite membrane was prepared through post-modification of a PPS membrane fabricated by thermally induced phase separation in an oxidizing solution consisting of H₂O₂, CH₃COOH, and Amberlyst 15. Next, sulfonal (-SO₂-) groups were introduced on the membrane surface by oxidation. The Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and scanning electron microscopy confirmed the formation of PPS/O-PPS membrane. Compared to the PPS membrane, the composite membrane showed good hydrophilicity, chemical and solvent resistance, superior water flux, and anti-fouling performance. Furthermore, the dye separation performance of the composite membrane was investigated. The composite membrane showed a separation efficiency of more than 94% for methyl blue and Congo red. Therefore, the PPS/O-PPS composite membrane prepared in this study is a promising alternative as it possesses dye rejecting properties and can find practical applications under harsh environmental conditions.

近年来，聚苯硫醚（PPS）膜由于其出色的分离性能而受到了广泛的关注。然而，单一材料通常不足以实现期望的材料性能。为此，将两种或更多种材料结合以形成复合材料是一种有效的方法。在这项研究中，聚苯硫醚/氧化聚苯硫醚（PPS / O-PPS）复合膜是通过在由H ₂ O ₂，CH ₃ COOH组成的氧化溶液中热诱导相分离制得的PPS膜进行后改性而制得的和Amberlyst15。接下来，磺化（-SO ₂通过氧化将-）基团引入膜表面。傅里叶变换红外光谱，X射线光电子能谱，X射线衍射和扫描电子显微镜证实了PPS / O-PPS膜的形成。与PPS膜相比，该复合膜显示出良好的亲水性，耐化学和溶剂性，优异的水通量和防污性能。此外，研究了复合膜的染料分离性能。复合膜对甲基蓝和刚果红的分离效率超过94％。因此，本研究制备的PPS / O-PPS复合膜是一种有前途的替代方法，因为它具有拒染性能，可以在恶劣的环境条件下找到实际应用。