Table of Contents
ISRN Environmental Chemistry
Volume 2013, Article ID 514154, 8 pages
http://dx.doi.org/10.1155/2013/514154
Research Article

Batch Adsorption of Maxilon Red GRL from Aqueous Solution by Natural Sugarcane Stalks Powder

Chemistry Department, Faculty of Science, Benha University, Benha 13511, Egypt

Received 23 May 2013; Accepted 1 July 2013

Academic Editors: F. Long, A. Waseem, and C. Waterlot

Copyright © 2013 Gamal Owes El-Sayed et al. 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.

Abstract

Sugarcane stalks powder was tested for its efficiency of removing a textile dye Maxilon Red GRL from aqueous solution. Different parameters affecting dye removal efficiency were studied. These parameters include contact time, initial dye concentration, adsorbent dose, ionic strength, pH, and temperature. Langmuir and Freundlich isotherm models were applied to the equilibrium data. The data fitted well with the Langmuir isotherm ( ). The maximum monolayer adsorption capacity ( ) was found to be 20.96 mg/g at an initial pH of 7.2. The temperature variation study showed that dye adsorption is exothermic and spontaneous with increased randomness at the solid solution interface. The results indicated that sugarcane stalks could be an alternative for more costly adsorbents used for dye removal. The kinetic of the adsorption process followed the pseudo second-order kinetics model.