Abstract

The visible light photochemical and photocatalytic oxidation of salicylic acid and 4-chlorophenol in a photoelectrocatalytic degradation reactor, at room temperature, under sunlight illumination, coated with anatase TiO 2-based Fe 2O 3 and AlFe 2O 3 photocatalysts were investigated. The solar radiation can effectively be applied to accelerate the process using suitable catalyst for economically cleaning the major fresh water sources. The profile of the oxidation of salicylic acid and 4-chlorophenol was followed by monitoring the target compound degradation, the total organic carbon removal and the mineralization process by chemical oxygen demand taking place during the oxidation with simultaneous conversion. Finally, based on the proposed mechanism a kinetic analysis was conducted in order to calculate the respective rate constants.

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