Electro-Oxidation and Detection of Phenol on Metals Modified Carbon Paste Electrodes

Phenol is considered as one of the most serious environmental contaminants rejected by industrial plants such as pharmaceuticals, formaldehyde resins, pesticides, textiles, petroleum refineries, chemical industry and agricultural activities. Phenol is one of 129 chemical compounds considered important pollutants listed by the Agency for Environmental Protection (EPA). Various methods for the treatment of phenolic wastewater have been used, such as wet air oxidation, adsorption, chemical oxidation, photocatalyst, biological treatment, and ozone oxidation. But there are few sufficiently efficient processes for the removal of phenol.


The electrochemical oxidation methods has become a promising method for the toxic, bio refractory and highly concentrated organic wastewater treatment because of its simplicity, easy control, strong oxidation performance and environmental compatibility. For anodic oxidation reactions, that the organic matter electro oxidation process, hydroxyl radicals (.OH), produced by water discharge through the retardation of oxygen at high electrode over potential on metal/ particle electrode surface, are required for organic matter elimination.


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