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

Figure 5

(a) Effect of initial concentration of MO on the degradation of methyl orange. (b) First- and (c) second-order kinetic model of the removal of MO. Experimental conditions: mass of WO3 = 0.25 g and pH = 4.

(a)

(b)

(c)