Adsorptive Removal of CO 2+ and Ni 2+ by Peels of Banana from Aqueous Solution

Abstract

The aims of the study were to investigate the effect of Banana peel on adsorption of Co2+ and Ni2+ by using flame atomic absorption spectroscopy (FAAS) for metal estimation. The effects of Co2+ and Ni2+ ions concentration, agitation time and temperature on adsorption of heavy metals onto Banana Peel was investigated. The experimental isotherm results were fitted using Langmuir and Freundlich equations. The Langmuir and Freundlich model agrees very well with experimental data. The maximum amounts of Co2+ and Ni2+ + adsorbed (qm), as evaluated by Langmuir isotherm, were 9.02 mg and 8.91 per gram of powder of Banana peel, respectively. Study concluded that Banana peels, a waste material, have good potential as an adsorbent to remove toxic metals like Co2+ and Ni2+ from water.