Maximum monolayer amount of adsorption (mg/g).
Moreover, the calculated amount of adsorption equilibrium (q e,c ) is comparable to the actual amount of adsorption equilibrium (q e ).
However, the calculated amount of adsorption equilibrium (q e,c ) is far different from the actual amount of adsorption equilibrium (q e ) for both the cases.
The maximum amount of adsorption (Qmax) was 41 mg g−1.
It was also observed at equilibrium time a decrease in amount of adsorption.
Therefore, the amount of adsorption depends on the acidic strength of the species.
According to the adsorption isotherm curves obtained from experiments, the amount of adsorption of metaxylene, ethylbenzene, toluene, benzene increases respectively.
Table 2 shows the amount of adsorption equilibrium (qe), Lagergren rate constant (Kad), calculated amount of adsorption equilibrium (qe,c) and the correlation coefficient (R2) which are derived from the Lagergren equation.
Table 3 shows the amount of adsorption equilibrium (qe), pseudo second-order rate constant (K′), calculated amount of adsorption equilibrium (qe,c) and the correlation coefficient (R2) which are derived from the pseudo second-order equation.
where k2 (g/mg min) is the rate constant of the second-order equation, q t (mg/g) is the amount of adsorption time t (min) and qe is the amount of adsorption equilibrium (mg/g).
Therefore, the amount of adsorption depends on the acidic strength of the 4-CP and 4-BP.
