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Article – Journal of Advanced Electrochemistry

Journal of Advanced Electrochemistry, Volume 2,Issue 2,2016 Pages 85-88

Electrooxidation of Ceftriaxone in Its Commercial Formulation on Boron Doped Diamond Anode
G.C. Quand-Meme, A.F. Thiery Auguste, L.E. Marie Hélène, B. Mohamed, S.S. Placide, I. Sanogo, L. Ouattara*

The degradation of ceftriaxone (CTX) has been studied by the electrochemical oxidation processes in an ideally stirred batch reactor using a boron-doped diamond (BDD) as the anode. The mineralization of CTX was investigated by UV-vis measurements and chemical oxygen demand (COD) analysis. The removal efficiency was studied as a function of several operational variables, such as current densities, initial CTX concentration, initial pH values and inorganic ions. It was found that BDD electrode exhibited good mineralization capability of CTX in neutral conditions at a current density of 100 mAcm-². That oxidation is mainly caused by hydroxyl radicals produced through water discharge at BDD surface in aqueous solution of potassium perchlorate. In presence of nitrate, no improvement of the CTX removal was observed but in presence of phosphate and chloride ions, CTX removal yield was enhanced. That enhancement was explained to be due by the involvement of in situ produced reactive (oxidative) species such as chlorine and phosphate radicals in the oxidation of the organic compound in the bulk of the solution.

Keywords: Ceftriaxone; Boron Doped Diamond; Chemical Oxygen Demand; Oxidation;