| Abstract: | In this research, a manganese dioxide/multiwalled carbon nanotube (MnO2/MWCNT) was firstly synthesized and characterized and then was applied as an effective sorbent for removing Cu2+ ions from aqueous solution. The effects of initial concentration, temperature, contact time, pH solution, and sorbent dosage were investigated and the optimum value of each was determined. The Langmuir isotherm model, Freundlich model, and Temkin model were used to fit our experimental results. Ultimately, using the Van't Hoff approach, the thermodynamic functions of the intended adsorption phenomenon such as ΔH°ad, ΔS°ad, and ΔG°ad were estimated. |
