Musa Acuminata Banana Bunch-Based Activated Carbon for Adsorption of Cu(II) Ions in Aqueous Solution: Kinetic and Isotherm Studies

Activated Carbon prepared from Musa Acuminata Banana Bunch (AC-MABB) was proposed in this study. The active sites and morphology structure of three types of the AC-MABB were analyzed using FT-IR and SEM, respectively. The effect of independent variables namely contact time, Cu(II) ions concentration in solution, NaOH activator concentration, initial pH, and temperature on adsorption capacity of the AC-MABB were investigated through batch mode experiments. The Cu(II) ions adsorbed onto the AC-MABB showed excellent fitting to the pseudo-second-order adsorption kinetic with a  correlation coefficient value of  ۰.۹۹۹. Meanwhile, it followed Langmuir isotherm with coefficient values of ۰.۹۸۱ and ۰.۹۹۱ at ۲۷ and ۵۷ oC, respectively. The optimum adsorption condition for ۱ g of the AC-MABB was observed to be under ۰.۴ M NaOH activation atmosphere and, stirred at initial pH of ۵ with a speed of ۱۰۰-rpm and a pressure of ۱ atm. The maximum Cu(II) ions adsorption capacity based on Langmuir was identified approximately equal to ۴۰.۳۲۲ and ۴۶.۰۸۲ mg/g at ۲۷ and ۵۷ oC, respectively.

کلیدواژه ها:

Musa Acuminata ، bunch ، Activated Carbon ، Capacity ، Kinetics ، Isotherm