DFT‐Backed Study on the Synergistic Photodegradation of Ternary Drug‐Dye Pollutants via Cd‐Based MOF

), and structural robustness. Under visible light, it achieves >96% degradation of Rhodamine B (RhB), Methylene Blue (MB), and ciprofloxacin (CPF) within 150 min, and maintains efficient performance in a ternary mixture, with selectivity toward RhB. Radical trapping and photophysical studies reveal a reactive oxygen species-driven degradation mechanism, while DFT calculations confirm pollutant-induced band gap modulation and enhanced charge transfer. Moreover, the Cd-MOF selectively detects CPF via fluorescence quenching with a detection limit of 0.563 ppm, showing excellent sensitivity, reusability, and pH stability. This study presents a structurally tunable and multifunctional MOF platform for integrated pollutant degradation and real-time antibiotic sensing, supported by combined experimental and theoretical validation.