Magnetic Nanoparticle (Fe3O4) Impregnated onto Coconut Shell Activated Carbon for the Removal of Ni(II) from Aqueous Solution

Abstract

The objective of this work is to study the adsorption of Ni(II) from aqueous solution using pure activated carbon (AC) and iron oxide modified activated carbon (AC-Fe3O4). The modification and adsorption process was monitored using FTIR and SEM. Equilibrium isotherms and kinetics were obtained and the effects of solution pH value, initial concentration and adsorbent dosage on the adsorption capacity of the adsorbent were studied in batch experiments. Equilibrium is well described by Langmuir and kinetics is found to fit pseudo-second-order type adsorption kinetics. Results show that modification of activated carbon with iron oxide improves its adsorption capacity.