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E-Journal of Chemistry
Volume 8, Issue 2, Pages 649-656

Malachite Green Dye Removal Using the Seaweed Enteromorpha

R. Jayaraj,1 M. Chandra Mohan,2 P. Martin Deva Prasath,1 and T. Hidhayathullah Khan2

1PG and Research Department of Chemistry, TBML College, Porayar-609307, Nagapattinam, Tamilnadu, India
2PG and Research Department of Chemistry, Khadir Mohideen College Adirampattinam-614 701, Tamilnadu, India

Received 9 September 2010; Revised 9 November 2010; Accepted 11 November 2010

Copyright © 2011 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Malachite green adsorption from an aqueous solution onto activated Enteromorpha 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. Kinetics studies indicated that the adsorption followed pseudo second order reaction. Equilibrium data was analyzed using Langmuir and Freundlich isotherm models. The adsorption capacity of Enteromorpha was found to be 94.74%. On the basis of experimental results and the model parameters, it can be inferred that the carbonaceous Enteromorpha is effective for the removal of malachite green from aqueous solution.