Kinetic Modeling of Three Textile Dyes Adsorption from Aqueous Solution onto a Cameroonian Smectite

In the present study, a Cameroonian smectite was used as an adsorbent to model adsorption kinetics of three textile dyes (malachite green, methyl red and acid blue 74) from aqueous solution in batch system. The effects pH temperature were evaluated on capacities, times required reach equilibrium mechanisms involved. It can be seen that, although are independent medium, process studied is favourable acidic media globally temperature. Among pseudo-first pseudo-second-order kinetic models analyse experimental data, best suited describe onto clay. mechanism involved, independently dye, therefore two-step process: transfer dye molecules clay surface followed by interaction between surface. low value activation energies indicates that Methyl red, Malachite green Acid 74 physisorption process.