Enhanced photocatalytic degradation of naphtol blue black using CuO/g-C3N4 composite with persulphate: Optimization of the process by response surface methodology

Key Points

• Enhanced photocatalytic degradation efficiency of naphthol blue black is achieved using a CuO/g-C3N4 composite.
• The optimal conditions resulted in a degradation rate of approximately 89% under specific parameters.
• Optimization was performed through response surface methodology to establish the best operating conditions.
• The findings support potential applications in wastewater treatment systems for dye pollutants.