Adsorbents Freundlich  parameters
R2 Kf 1/n
OSC 0.929 226.20 0.08
OPC 0.743 89.07 0.31
PC 0.882 128.44 0.17
SC 0.877 13.65 0.25
Table 2:Parameters of Freundlich isotherm for adsorption of MB by SC, PC, OSC and OPS.