fig3

Figure 3. The impact of operational parameters on system performance: (A) various systems; (B) catalysts quality; (C) PMS dosage, and (D) pH value. Experimental conditions: [CBZ] = 20 mg/L, [PMS] = 0.30 g/L for conditions (A), (B), and (D); [Cat.] = 0.10 g/L for experiments (A), (C), and (D); and initial pH = 6.38 for tests (A), (B), and (C). Each experiment was performed in triplicate, with error bars indicating the standard deviation of the results. ZS: Zr-SBA-15; PDA: polydopamine; PMS: peroxymonosulfate; CBZ: carbamazepine; Cat.: catalyst.