Adsorptive removal of methylene blue from aqueous solution onto koh-activated carbons derived from saba banana (m. Acuminata balbisiana) peel

Abstract

Abstract Organic pollutants in water are an increasingly prominent problem. Given this challenge, this study reported the high adorptive removal of methylene blue (MB) onto potassium hydroxide (KOH)-activated carbon. To prepare activated carbon, saba banana peel that are local organic waste were carbonized at 400 ° C and activated using various KOH concentrations, e.g.(0,5, 1 and 1,5 M). Physical and microstructural properties of activated carbon were characterized by X-ray diffractometer (XRD), scanning electron microscope (SEM), and Fourier Transform Infrared (FTIR). The efffect of KOH concentrations on the adsorption perfromance of MB on KOH-activated carbon were further investigated. The adsorption process occurred more easily after KOH (1,5 M) of concentration and the adsorption capacity of activated carbon improved by more than 23 %. These results indicate that preparing Banana fruit peels-derived activated carbon using KOH activation is an effective way to reduce pollution and utilize a waste resource.