Abstract

Removal of Rhodamine B dye from aqueous solution using the acid activated Cynodon dactylon carbon

Rhodamine B adsorption from an aqueous solution onto acid activated Cynodon dactylon carbon has been studied experimentally using batch adsorption method. Adsorption Kinetics and equilibrium were investigated as a function of initial dye concentration, pH, contact time, and adsorbent dosage. Kinetic studies indicated that the adsorption followed reversible First order reaction. Equilibrium data was analyzed using Langmuir and Freundlich isotherm models. The adsorption capacity of Cynodon dactylon was found to be 94 % on the basis of experimental results and the model parameters, it can be inferred that the carbonaceous Cynodon dactylon is effective for the removal of Rhodamine B from aqueous solution.


Author(s): B.R. Venkatraman, U. Gayathri, S. Elavarasi and S. Arivoli

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