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Table 1

Pseudo-first order rate constants for the degradation of AO7 by Cu(II)/O2/UV process under the conditions of different dosages of AO7

[AO7], μM12.53457.5
k, min−1 0.019 0.010 0.008 0.006 0.006 0.004 
R2 0.994 0.995 0.996 0.993 0.992 0.992 
[AO7], μM12.53457.5
k, min−1 0.019 0.010 0.008 0.006 0.006 0.004 
R2 0.994 0.995 0.996 0.993 0.992 0.992 

Experimental conditions: [Cu(II)]0 = 10 μM, [AO7]0 = 1.0, 2.5, 3.0, 4.0, 5.0 and 7.5 μM, power of UV light = 15 W, O2 flow rate = 0.5 L·min−1, pH = 3.5 ± 0.1, 20 °C, reaction time = 60 min.

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