Fig. 15

UV spectra of mixtures after adsorption by CELL@HBH at different periods of time: (a) Cr(VI) + E124 mix, (b) Cr(VI) + E122 mix, (c) E122 + E124 mix, and (d) E124 + E122 + Cr(VI) mix.

UV spectra of mixtures after adsorption by CELL@HBH at different periods of time: (a) Cr(VI) + E124 mix, (b) Cr(VI) + E122 mix, (c) E122 + E124 mix, and (d) E124 + E122 + Cr(VI) mix.