Adsorption Efficiency Investigation of Polyacrylonitrile for Methyl Green Dye from Aqueous Solution

Abstract

Due to several environmental contaminants, the textile industry's wastewater disposal presents significant dangers, including to drinkable water. This study aims to synthesize polyacrylonitrile (PAN) and examine how well it adsorbs methyl green color from aqueous solutions. The synthesis steps were performed after the PAN was characterized using various techniques, including FTIR, SEM, EDS, TGA-DSC, and XRD. Research was conducted on the quantity of adsorbent utilized, the initial concentration, and the contact time. All of these factors were shown to impact the adsorption process. The findings indicated that a dose of 0.01 g, an initial concentration of 30 mg/L, and a contact duration of 60 minutes produced the best results with the adsorbent. Using the Langmuir and Freundlich adsorption model, the maximum adsorption capacity was calculated to be 1604.837 mg/g. After applying Freundlich Langmuir and isotherm models to experimental adsorption data, the estimates made by the Freundlich model were more consistent with the experiments' actual results; thermodynamic analysis examined adsorption properties.

Keywords

• Methyl green
• polyacrylonitrile
• adsorption
• isotherm
• maximum capacity