Solutions were allowed to equilibrate at room temperature on a VWR mini shaker for 48 h at a rotation speed of 180 rpm. At the end of the experiments, solutions were filtered using Whatman no. 1 filter paper to recover used SC and the SC allowed to dry at room temperature. FTIR and DRS spectra were obtained for the dye adsorbed SC samples. The concentrations of the bulk solutions were determined using a DH-2000 Bal (Mikropack) UV-Vis spectrophotometer operated by Spectrasuite software. MB absorbance was recorded at 666.07 nm and SO at 522.02 nm. These concentrations were used to determine adsorption capacity using (1), where q e is adsorption capacity (mg/g), C o and C e are the respective initial and equilibrium concentrations of adsorbate (mg/L), m is the mass of adsorbent (g) and V is the volume of adsorbate solution (L).