Fig. 1. Schematic diagram of the molecular structures of 6-AIQ, BSA, β-CD and HP-β-CD

Fig. 2. Absorption and fluorescence spectra of aqueous solutions before and after 6-AIQ protonation

Fig. 3. Schematic diagram of optical collision

Fig. 4. Spectral and concentration relationship diagram of 6-AIQ-BSA@β-CD supramolecular aqueous solution

Fig. 5. Spectra of DAST@HP-β-CD supramolecular aqueous solution

Fig. 6. Fluorescence spectra of aqueous mixtures with different volume ratios of DAST@HP-β-CD and 6-AIQ-BSA@HP-β-CD and corresponding CIE color coordinates

Fig. 7. Physical picture of fluorescent film irradiated by ultraviolet light source