Figure 4

(a) Spectral overlap of absorbance spectrum of 4-NA with excitation and emission spectra of the IUST-3, (b) Luminescent intensity of the IUST-3 at 380 nm after four cycles for 4-NA.

(a) Spectral overlap of absorbance spectrum of 4-NA with excitation and emission spectra of the IUST-3, (b) Luminescent intensity of the IUST-3 at 380 nm after four cycles for 4-NA.