Figure 6

(a) Spectral overlap of absorbance spectrum of the CrO42− anion with excitation and emission spectra of the IUST-3, (b) Luminescent intensity of the IUST-3 at 380 nm after four cycles for the CrO42− anion.

(a) Spectral overlap of absorbance spectrum of the CrO42− anion with excitation and emission spectra of the IUST-3, (b) Luminescent intensity of the IUST-3 at 380 nm after four cycles for the CrO42− anion.