These observations emphasize the critical interaction of chemical and physical forces at the nanoscale interface. The unshifted absorption spectra also confirmed that the CPB NCs remained structurally intact within the composite. The composite exhibited a remarkable 92% PL quenching, indicating efficient charge separation. FPL spectra confirm that the optical activity of CPB NCs is preserved while benefiting from improved charge separation and reduced electron-hole recombination. Notably, this study is the first to report the photocatalytic dye degradation performance of CPB/ZIF-8, demonstrating a significant enhancement under visible light irradiation, with degradation rates 1.48 and 1.75 times higher for MO and BCG, respectively, compared to pristine CPB NCs. The EPR studies revealed superior radical generation capabilities, particularly for hydroxyl radicals, highlighting its potential for advanced environmental remediation applications. These findings underscore the synergistic interaction between CPB NCs and ZIF-8, making the CPB/ZIF-8 nanocomposite a promising material for photocatalysis and other optoelectronic applications.