ABSTRACT Water pollution from organic dyes used in the textile industry causes environmental problems. Therefore, in this study, a composite membrane (PVA/PPycoPSS/aBN) was synthesized. The electrical conductivities of PVA and PVA/PPycoPSS/aBN composite membranes were determined to be 2.67x10 −4 S/cm and 1.04x10 −1 S/cm, respectively. Its functional groups were analyzed by Fourier transform infrared spectroscopy (FTIR); the presence of specific peaks from boron nitride and polymers confirms the composite's composition. Its surface morphology was examined by scanning electron microscopy (SEM), and its crystal structure was determined by x‐ray diffraction (XRD). The spherical particle morphology observed in SEM images, along with homogeneous embedding in the polymer, is consistent with both the peak suppression observed in XRD and the increase in conductivity. The thermal stability was assessed by thermogravimetric analysis (TGA). The absence of mass loss in aBN at 600°C indicates that the membrane is thermally stable. The photocatalyst showed a 2.36‐fold increase in adsorption capacity under UV light after 240 min compared to dark conditions. This method is superior to conventional adsorption methods. This is because it not only retains organic pollutants on the surface but also photocatalytically degrades them, enabling the reuse of active groups. This increases the photocatalyst's reusability and stability.
Deniz Doğan (Sun,) studied this question.