Preparation and characterization of activated carbon and application to pollutant adsorption:

Abstract

The primary purpose of this study is to look at how activated carbon can be used to decontaminate dye-polluted water (methyl blue and methyl orange). We talked about theoretical water contamination, colorants, and adsorption. The materials, products, and experimental techniques, as well as the methods utilized to prepare activated carbon, have all been thoroughly detailed. We have discussed the characteristics of activated carbon: infrared spectroscopy (IR) reveals the presence of C=C, C=C, C-O and C-H groups. The observations made correspond to the pseudo-first- order and pseudo-second-order kinetic equations, with an excellent fit for the second and first orders. The Langmuir model illustrates the adsorption isotherms more effectively compared to the Freundlich model. The thermodynamic parameters suggest that the adsorption is endothermic (AH>0). Keywords: water pollution, Activated carbon, Methylene Blue, Methyl Orange, adsorption, kinetics, isotherm, thermodynamics.