High efficient catalytic degradation of tetracycline and ibuprofen using visible light driven novel Cu/Bi₂Ti₂O₇/rGO nanocomposite: Kinetics, intermediates and mechanism

The photoexcited charge carriers trapping was an effective way to generate a large number of active species like O₂ ^•− and ^[rad]OH radicals to oxidize pharmaceutical molecules. In ternary Cu/Bi₂Ti₂O₇/rGO composite Cu nanoparticles and rGO sheets act as charge carrier trappers and the suppression of e⁻-h⁺ pair recombination was confirmed by Photoluminescence analysis. The Cu/Bi₂Ti₂O₇/rGO composite exhibited higher photocatalytic degradation efficiency for degradation of ibuprofen and tetracycline molecules under visible light irradiation within 90 min. Therefore, this research designates a promising strategy for higher photoexcited charge carrier trapping photocatalyst design for efficient degradation of pharmaceutical molecules.