Analysing the efficacy of TiO2/g-C3N4 nanohybrid electrospun membranes for visible-light photocatalytic water purification

The significance and reliability of membrane-based water purification in wastewater recycling are emphasized in this study. Hydrophilic cellulose acetate and hydrophobic polycaprolactam membranes incorporated with TiO2/ g-C3N4 nanohybrids were fabricated by electrospinning. Synthesis of TiO2/g-C3N4 nanohybrids employed a sol-gel-assisted hydrothermal method, while g-C3N4 through fractional thermal polymerization of acetic acidmodified melamine. The optimized photocatalytic hybrid exhibited methylene blue degradation by a 1.5-fold increase in photoactivity compared to pristine TiO2 and a 3-fold increase compared to g-C3N4. Upon incorporation into electrospun membranes, the hybrids demonstrated effective degradation of Methylene blue dye by photocatalysis, and the membranes exhibited excellent stability over multiple cycles.