Photocatalytic Degradation of Basic Red in Aqueous Medium by Ag3PO4
Synopsis
The semiconductor Ag3PO4 was successfully used for the photo-degradation of Basic Red (BR), a hazardous and recalcitrant dye. The Ag3PO4 was prepared by precipitation route and characterized by X-ray diffraction XRD, SEM / EDS. The quenching experiments were carried and the results demonstrate that the radical OH∙ is the responsible active specie for the BR photooxidation. The solar photocatalysis over the Ag3PO4 exhibits an increased performance in the BR degradation due to activation by the UVA part of the solar light. An elimination conversion of 97% was obtained after 4 h at room temperature for a BR concentration of 20 mg/L.
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