<p>Recently, there has been considerable interest in utilizing the photocatalytic capabilities of semiconductor nanoparticles to degrade organic pollutants under sunlight. However, their post-treatment recovery remains a challenge. This study introduces a novel BiOCl/EVA nanocomposite film designed to simplify photocatalyst separation while maintaining high photocatalytic performance. BiOCl nanoparticles were synthesized via a co-precipitation method and embedded into an ethylene-vinyl acetate (EVA) matrix using a solvent casting technique. The resulting films were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), energy-dispersive spectroscopy (EDS), thermogravimetric analysis (TGA), and UV-vis diffuse reflectance spectroscopy (DRS). The films demonstrated high crystallinity, thermal stability, and uniform nanoparticle dispersion. Optical analysis via Tauc plots revealed a suitable band gap for visible-light activation. Photocatalytic tests showed that approximately 98% of rhodamine B (RhB) dye was degraded under sunlight within 120&#xa0;min. Additionally, the composite retained 88% of its efficiency after four reuse cycles, confirming its stability and reusability. Finally, through the use of experimental data and the trapping of active species, the degradation mechanism of RhB was elucidated. This work presents a promising, easily recoverable photocatalyst with strong potential for practical wastewater treatment applications.</p> Graphical Abstract <p></p>