Figure 8.
Effect of contact time for the single system of phenol and the dual one of Cu(II) ions and phenol on (a) NaP1 C0 = 50 mg/L; (b) NaP1 C0 = 100 mg/L; (c) NaP1CS C0 = 50 mg/L; (d) NaP1CS C0 = 100 mg/L), m = 0.1g.
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