Adsorptive Removal of Rhodamine 6G from Aqueous Solution by MMT/P (MA-co-AA) Composites: Thermodynamic study

Abstract

Adsorption of Rhodamine 6G from Solution on montmorillonite / poly (malic acid-co-acrylic acid) Composite Surfaces is the focus of this study. Quantitative adsorption data has been obtained using the visible-spectrophotometric technique under a temperature condition. Intraparticle diffusion was found to be an important player in the desorption process based on kinetic studies. Based on the calculated data, the adsorption isotherms are classified as S-curves by Giles. The Temperature was used to study the adsorption process (15, 20, 25 and 30ºC). A decrease in the composites' ability to absorb Rhodamine 6G was found to occur with increasing temperature (exothermic process). There have also been calculations of the fundamental thermodynamic functions.