The electrocatalytic degradation of disruptors dimethyl phthalate (DMP)

using lacunary heteropolyanion PW

11

O

7-

39

 as an indirect electrocatalyst

was investigated in this work. The results indicated that 96% of DMP degradation was obtained in less than 120 min in Na

2

SO

4-

NaHSO

4

solution (pH 2.5) containing 0.05 mmol·L

-1

DMP at the potential of -0.6 V and the O.2 flow rate of 60 mL min

-1

. A total organic carbon (TOC) removal reached 34% at 120 min. The DMP degradation reaction follows the pseudofirst order kinetic regime and the observed rate constants (k obs) related to the initial DMP concentration were determined to be 2.9×10

-2

7.5×10

-3

and 4.9×10

-3

min

-1

 at the initial DMP concentration of 0.05

0.2 and 0.3 mmol·L

-1

respectively.