Membrane technology is an advanced approach to making a healthier and cleaner environment. Using such catalytic membrane technology to get clean, usable water by removal of dye impurities as well as pathogenic microbes is the main goal behind the research work. Here, we present the synthesis and efficacy study of polymethyl methacrylate (PMMA)-based Ag/ZnO/TiO₂ trimetallic bifunctional nanofibers with antibacterial and photocatalytic activity. The nanofibers have been proven to be effective for the degradation of methylene blue (MB 93.4%), rhodamine B (Rh 34.6%), auramine-O (Au 65.0%) and fuchsin basic (FB 69.8%) dyes individually within 90 min in daylight. The study is further extended in abating a mixture of these dyes from contaminated water using composite nanofibers. Also, in the case of a mixture of these dyes (3 ppm each), nanofibers show dye degradation efficiency (DDE) of 90.9% (MB), 62.4% (Au) and 90.3% (FB and Rh) in 60 min. The role of Ag nanoparticles with a synergic photocatalytic effect on ZnO and TiO₂ is also demonstrated. Also, PMMA/ZnO/TiO₂ composite fiber membrane in synergy with silver particles shows better antibacterial activity against Gram-negative bacteria E. coli, making PMMA/Ag/ZnO/TiO₂ fibers a promising candidate in water purification.

膜技术是创造更健康、更清洁的环境的先进方法。利用这种催化膜技术去除染料杂质和病原微生物来获得清洁、可用的水是研究工作的主要目标。在这里，我们介绍了具有抗菌和光催化活性的聚甲基丙烯酸甲酯（PMMA）基Ag/ZnO/TiO ₂三金属双功能纳米纤维的合成和功效研究。纳米纤维已被证明可在 90 分钟内有效降解亚甲基蓝 (MB 93.4%)、罗丹明 B (Rh 34.6%)、金胺-O (Au 65.0%) 和品红碱性 (FB 69.8%) 染料。白天。该研究进一步扩展到使用复合纳米纤维去除污染水中的这些染料混合物。此外，在这些染料的混合物（每种 3 ppm）的情况下，纳米纤维在 60 分钟内的染料降解效率（DDE）分别为 90.9%（MB）、62.4%（Au）和 90.3%（FB 和 Rh）。还证明了Ag纳米颗粒对ZnO和TiO ₂具有协同光催化作用的作用。此外，PMMA/ZnO/TiO ₂复合纤维膜与银颗粒协同作用，对革兰氏阴性菌大肠杆菌表现出更好的抗菌活性，使得PMMA/Ag/ZnO/TiO ₂纤维成为水净化领域有前景的候选者。