<p>➀ The study investigates the use of N-doped Ti3O5 nanoparticles as a photocatalyst for phenolic compound degradation in industrial wastewater; </p><p>➁ N-doped Ti3O5 shows improved performance over TiO2, achieving high degradation efficiencies under various light sources; </p><p>➂ The optimized conditions for degradation include neutral pH, 1 g/L catalyst dosage, and 30 minutes of irradiation time.</p>