Electrochemical degradation of malachite green with BDD electrodes: Effect of electrochemical parameters

Degradation of the antibiotic oxacillin in water by anodic oxidation with Ti/IrO 2 anodes: Evaluation of degradation routes, organic by-products and effects of water matrix components

“…by direct electrode action or through adsorbed OH radicals) the process is favoured at low current densities [30,36]. On the contrary, when the reaction occur in the bulk, via electro-generated oxidative species the enhancement in the current density mostly produce an increase in the degradation rate of the pollutant [30,37]. On the other hand, the Pareto diagram is used to draw conclusions about which variables and interactions are most significant [38].…”

Comparative use of anodic oxidation, electro-Fenton and photoelectro-Fenton with Pt or boron-doped diamond anode to decolorize and mineralize Malachite Green oxalate dye

“…AO involves the direct oxidation of organics at the surface of the anode (M) and, when a high current is applied, their much more rapid attack by physisorbed hydroxyl radical (M( OH)) produced from water oxidation as follows [1,[6][7][8][9][10][11]:…”

Effect of Operating Parameters on Electrochemical Discoloration of Acid Blue 1 on BDD Electrode

“…The best order with respect to AB1 is order 1 (Fig. 7b) (similar order is observed with malachite green [20]). According to the literature, in the presence of sulfate, AB1 undergoes total discoloration [17].…”

“…Comparing the evolution of the UV-visible spectrum of AB1during electrolysis with that in ref. 20, we can say that total degradation of AB1occurred in basic medium in the presence of KCl. It is obvious that the pH of the medium is an important parameter which affects the mechanism of the reaction.…”

“…For this reason, there is a need to apply powerful methods to ensure the complete discoloration and degradation of dyestuffs and their metabolites present in the spent dyeing baths. Many studies have been carried out to investigate the degradation of the triphenylmethane dyes, such as adsorption [5,6], biodegradation [7,8], photocatalytic degradation [9][10][11][12], oxidation with persulfate -E133 [13], crystal violet [14], and E131V [15]-, and finally, electrochemical treatment: alphazurine on BDD electrode [16], crystal violet on BDD [17], methyl violet [18] and malachite green [19,20] have been investigated. Advanced oxidation processes involve in situ generation of powerful chemical oxidants, such as OH * and SO4 -* for the removal of a wide range of organic contaminants in wastewater.…”