“…14,15 Another study adopted the phase inversion method, incorporating CuO nanoparticles into mixed cellulose acetate and polyether sulfone matrices, demonstrating efficacy as a dye adsorbent. 16 Furthermore, innovative approaches led to the development of composite materials like urchin-like CuO microparticles and polyvinylidene fluoride, serving as efficient photocatalysts for dye degradation under visible light irradiation. 17 Recent advancements featured the utilization of chitosan-supported Cu 2 O/CuO nanocomposites, showcasing remarkable catalytic activity in the reduction of cationic and anionic dyes and 4-nitrophenol.…”