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Chromium Ions Removal from Wastewater Using Carbon Nanotubes

Ahmed A. Moosa, Ali Mousa Ridha, Ibtihal Najem Abdullha

Functionalized MWCNTs were used for the removal of heavy metal Cr+3 ions from wastewater. The optimum conditions for batch adsorption of Cr3+ ions and the maximum adsorption efficiency were found to be 99.83% for MWCNTs at 25 mg; and pH 6. The results showed that MWCNTs have large adsorption capacity due to their higher surface area. The equilibrium isotherm of (MWCNTs) shows that the Langmuir isotherm fits the experimental data better than Freundlich adsorption