Application of natural clay as a potential adsorbent for the removal of a toxic dye from aqueous solutions

Abstract

Abstract: Application of natural clay (NC) was investigated for the removal of a toxic dye, methylene blue (MB) from aqueous solutions. Extensive characterization of NC was carried out. Effect of various parameters on the removal of MB was investigated. During the study of the effect of adsorbent dose, almost a 100% removal was achieved at a higher dose of natural clay. The experiments were carried out at an initial MB concentration of 60 mg/L and at 298 K. The removal of MB by the application of natural clay was feasible, spontaneous, and endothermic in nature. The process of removal was better explained by Langmuir isotherm model. © 2013, © 2013 Balaban Desalination Publications. All rights reserved.