Kinetic Study of the Removal of Methyl Orange Dye by Coupling WO₃/H₂O₂

Figure 3

Effect of catalysts on the rate of removal of MO: experimental condition: pH = 4, (OM) = 30 mg L⁻¹, V_H2O2 = 2.5 ml, T = 303 K mass of WO₃ = 0.25 g.