Fig. 11: Effect of varying H₂O₂ dosage on the photocatalytic performance of the CSHK–Ni catalyst.

Profiles of degradation of a TNZ and c MTZ (reaction conditions: catalyst dosage 0.20 g/L, pollutant conc. 20 mg/L, H₂O₂ dosage 0‒0.5 mL, pH 7); degradation kinetics of b TNZ and d MTZ at varying H₂O₂ dosage.