هانيه مراغي قلعه جقي

The increasing generation of industrial effluents containing organic pollutants an‎d oily wastewater, particularly aromatic synthetic dyes, has become one of the most critical environmental challenges in recent decades. The membrane synthesized in this study was eva‎luated for methylene blue removal at initial dye concentrations of 10, 25, 50, an‎d 75 ppm an‎d contact times of 10, 20, an‎d 30 min, demonstrating high removal efficiency (98.21%) under all investigated conditions. In this work, silicon carbide nanoparticles were first synthesized from rice husk via the magnesiothermic reduction method. Subsequently, polyvinylidene fluoride/silicon carbide (PVDF/SiC) composite nanofibrous membranes were fabricated by electrospinning, an‎d their structural an‎d functional properties were systematically investigated. After membrane fabrication, structural characteristics were analyzed using scanning electron microscopy, elemental analysis an‎d mapping, Fourier transform infrared spectroscopy, X-ray diffraction, Brunauer–Emmett–Teller surface area analysis, membrane porosity measurements, an‎d thermogravimetric analysis to elucidate the morphology, crystalline structure, nanoparticle dispersion, an‎d thermal stability of the membranes. To eva‎luate membrane performance, water contact angle measurements, organic dye removal experiments, fouling behavior, an‎d operational stability assessments were conducted. The results demonstrated that incorporation of silicon carbide nanoparticles into the PVDF membrane significantly enhanced hydro‎philicity, improved the porous nanofibrous structure, reduced fouling tendency, an‎d increased the removal efficiency of organic an‎d oily contaminants compared with the pristine PVDF membrane. This study, focusing on the development of electrospun nanofiber-based nanocomposite membranes, presents an innovative an‎d efficient approach for improving membrane performance in wastewater treatment applications.

غشاء , نانوفيبر , سيليكون‌كاربيد , تصفيه آب , متيلن بلو

membrane , nanofiber , Silicon Carbide , water treatment , methylene blue

Haniye Maraghi Ghale Joghi

Mahbobe Rabani