Fig. 17. Fluorescence quenching spectra of MB (A) different concentration of N-ZnONCBs in water; (a) 1 × 10−6 M of MB, (b) 0.1 μM, (c) 0.2 μM, (d) 0.3 μM, (e) 0.4 μM, (f) 0.5 μM and (g) 0.6 μM at excited state at 630 nm, (B) Stern–Volmer plot of F0/F vs. concentration of N-ZNONCBs, (C) fluorescence spectra of 2,4-DCP and (D) Stern–Volmer plot of F0/F vs. time of various concentration of (a) 1 × 10−6 M of 2,4-DCP, (b) and (a) 1 × 10−6 M of MB, (b) 0.1 μM, (c) 0.2 μM, (d) 0.3 μM, (e) 0.4 μM, (f) 0.5 μM and (g) 0.6 μM at excited state at 240 nm.
