Applied and Environmental Chemistry Laboratory, Department of Chemistry, Jai Narain Vyas University;Applied and Environmental Chemistry Laboratory, Department of Chemistry, Jai Narain Vyas University;
KARTIKA RATHORE;SANGEETA LOONKER;
In this paper, we report use of guar gum-g-poly (methyl methacrylate) superabsorbent nanocomposite for the removal of crystal violet dye. The adsorption experiments were carried out using batch technique at different pH values. UV-Visible spectrophotometry was used for determination of dye concentration. Result indicates that prepared composite showed highest percentage removal of 78% at pH value of 8. The effect of various variables such as adsorbent dose, initial crystal violet dye concentration, time of contact and pH on percentage removal of dye was investigated. The adsorption isotherms were studied to evaluate adsorption characteristics of nanocomposite used. The study of adsorption isotherm shows that adsorption process of crystal violet follow both Freundlich and Langmuir isotherm. The kinetics of adsorption was also studied and result shows that it follows pseudo second order reaction kinetics.