Figure 5 | Scientific Reports

Figure 5

From: Magnetic Activated-ATP@Fe3O4 Nanocomposite as an Efficient Fenton-Like Heterogeneous Catalyst for Degradation of Ethidium Bromide

Figure 5

Factorial effects of heterogeneous Fenton reaction on EtBr (80 mg/L) degradation by A-ATP@Fe3O4: (a) initial pH value, and (b) Arrhenius plot based on the effect of temperature. (c) H2O2 dosage, (e) A-ATP@Fe3O4 composite addition, (d) and (f) Pseudo-first-order kinetics corresponding to (c) and (e) (where the slope of the plot of −ln(C/C 0 ) versus reaction time is the apparent degradation rate constant k). Except for the investigated parameter, other parameters were fixed: catalysts load 1.5 g/L, initial H2O2 concentration 30 mmol/L and the temperature of the system 323 K of (a), catalysts load 1 g/L, pH 2.0, initial H2O2 concentration 15 mmol/L of (b). And catalysts load 1 g/L, pH 2.0, the temperature of the system 323 K of (c) and (e), pH 2.0, initial H2O2 concentration 30 mmol/L and the temperature of the system 323 K of (d) and (f).

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