in Table 1. The coefficient of correlation was high (R2 = 0.9841)
showing a good linearity. From Table 1, it can be conclude that the
Langmuir isotherm model was more suitable for the experimental
data than other isotherms because of the high value of correlation coefficient (R2 = 0.9863). This indicates that the adsorption of
MB on PS takes place as monolayer adsorption on a surface that is
homogenous in adsorption affinity. A similar result was reported
for the adsorption of MB on Luffa cylindrica fibers [32].