ABSTRACT Wastewater from textile dyes remains a significant environmental concern. The demand for sustainable, efficient, and environmentally friendly treatment technologies has accelerated the development of advanced filtration systems. Among these, polymeric membranes are the most effective approach due to their ease of fabrication, cost‐effectiveness, and excellent selectivity for Methylene Blue (MB) remediation. In this study, PTh/ZnO‐based PVDF membranes were fabricated using the phase inversion technique. The prepared membranes (PM‐1 to PM‐5) were characterized by Fourier Transform Infrared Spectroscopy (FTIR), X‐ray Diffraction (XRD), Scanning Electron Microscopy (SEM), tensile testing, and contact angle measurement. The PM‐5 membrane achieved 85% porosity owing to nanocomposite‐induced interconnected pore formation. Moreover, the contact angle decreased from PM1‐PM5, indicating enhanced hydrophilicity driven by hydroxylated ZnO and surface roughness. Membrane performance was evaluated through photocatalytic degradation of a representative dye pollutant, exhibiting efficiencies of 91%, 95%, and 97% for PM‐3, PM‐4, and PM‐5, respectively. In comparison, pristine PVDF exhibited limited photocatalytic activity, achieving only 32% MB degradation. Density functional theory (DFT) calculations further revealed enhanced electronic interactions and charge transport within the PTh/ZnO–PVDF composite, supporting its improved photocatalytic activity. These findings highlight PTh/ZnO–PVDF membranes, offering a viable route toward clean water technologies and practical applications in dye‐intensive industries.
Mohsin et al. (Tue,) studied this question.