TiO₂ demonstrated near-complete degradation of CIP in all cases, consistent with its established role as a highly active photocatalyst under UV-A light. The complete mineralization of CIP indicates that the intrinsic photocatalytic properties of TiO₂ remain unparalleled under optimal conditions, primarily due to its ability to generate hydroxyl radicals efficiently. The performance of the tri-doped catalysts was comparatively modest, with degradation efficiencies significantly lower than bare TiO₂. However, these catalysts exhibited notable differences among themselves: a. B1Ce1Ag0.1TiO₂: This catalyst emerged as the best performer among the tridoped variants, achieving a degradation efficiency of approximately 54% at 10 ppm CIP concentration. The enhanced performance can be attributed to an optimized balance of dopant concentrations, which likely improved charge carrier separation and reduced recombination rates. b. B1Ce1Ag0.06TiO₂ and B1Ce0.1Ag0.06TiO₂: These catalysts showed relatively lower degradation efficiencies, indicating that the specific doping levels in B1Ce1Ag0.1TiO₂ provided a more favorable catalytic environment for CIP degradation.