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A B S T R A C TPbO 2 films are electrodeposited by the galvanostatic (G) and pulsed current (P) methods on lead and stainless steel (AS30), respectively. They are used as electrodes for electrochemical degradation of Amaranth dye. The scanning electron microscope, atomic force microscope, and X-ray diffraction analyses revealed the dominance of β-PbO 2 form in two anodes and the absence of the form tet-PbO and PbSO 4 in AS30 substrate that have more amorphous shape and less roughness (200 nm). A poor lead oxide adhesion on AS30 substrate is detected. Cyclic voltammetry results showed that the absence of oxidation peak in the case of AS30/PbO 2 anode is related to the oxidation of PbSO 4 to β-PbO 2 . EIS results demonstrated that the pH influences largely PbO 2 layer. Concerning E123 degradation, 95 and 91% of color removal (82 and 76% of Chemical oxygen demand removals) were achieved using Pb/PbO 2 and AS30/PbO 2 anodes, respectively. In this case, current efficiency has kept relatively a high value assuming less energy consumption.

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