Study of Electrochemical Degradation of Bromophenol Blue at Boron-doped Diamond Electrode by Using Factorial Design Analysis

Abstract

As an ideal anode material, Boron-doped diamond (BDD) has been widely applied in electrochemical oxidation of various organic pollutants, for its unique physical and chemical properties. In this paper, the authors studied the degradation of bromophenol blue through the electrochemical anodic oxidation by using the boron-doped BDD as the anode. The effect of statistically important operating parameters on treatment performance, such as treatment time, flow rate, applied current and concentration of supporting electrolyte, was evaluated by employing a factorial design analysis in terms of color removal and COD removal amount. As a result, the BDD technology was approved to be highly effective in treating bromophenol blue. Moreover, the results revealed the applicability and potential of factorial design analysis in operating parameters optimization and practical engineering application of BDD technology.

Unprecedented formation of reactive BrO– ions and their role as mediators for organic compounds degradation: The fate of bromide ions released during the anodic oxidation of Bromophenol blue dye

“…[34,35] The BPB has a high level of toxicity and persistence in different water systems. [33,36] Several wastewater treatment techniques such as adsorption, [37] photocatalysis, [34,38] biotic and biochemical degradation, [37] Cu(II)/H 2 O 2 /UV, [33] and EO using BBD electrode [36,39] have been investigated for the remediation of BPB contaminated synthetic wastewater. However, only EO showed excellent efficiency with other technologies having many disadvantages such as low efficiency, high cost, and complex operation conditions that inhibit the feasibility of scale-up for commercial applications.…”