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@article{ART001540587},
author={Nady A. Fathy and Iman Y. El-Sherif},
title={Equilibrium Removal of Pb (II) Ions from Aqueous Solution onto Oxidized-KOH-Activated Carbons},
journal={Carbon Letters},
issn={1976-4251},
year={2011},
volume={12},
number={1},
pages={1-7}

TY - JOUR
AU - Nady A. Fathy
AU - Iman Y. El-Sherif
TI - Equilibrium Removal of Pb (II) Ions from Aqueous Solution onto Oxidized-KOH-Activated Carbons
JO - Carbon Letters
PY - 2011
VL - 12
IS - 1
PB - Korean Carbon Society
SP - 1
EP - 7
SN - 1976-4251
AB - In the present study, the removal of Pb (II) ions on oxidized activated carbons (ACs) was investigated. ACs were derived from activation of indigenous cotton stalks waste with potassium hydroxide (KOH) in two-stage process. The KOH-ACs were subjected to liquid-phase oxidation with hot HNO3 and one untreated sample was included for comparison. The obtained carbons were characterized by Fourier transform infrared (FTIR), slurry pH and N2-adsorption at 77 K, respectively. Adsorption capacity of Pb (II) ions on the resultant carbons was determined by batch equilibrium experiments. The experimental results indicated that the oxidation with nitric acid was associated with a significant increase in mass of yield as well as a remarkable reduction in internal porosity as compared to the untreated carbon. The AC-800N revealed higher adsorption capacity than that of AC-800, although the former sample exhibited low surface area and micropore volume. It was observed that the adsorption capacity enhancement attributed to pore widening, the generation of oxygen functional groups and potassium containing compounds leading to cation-exchange on the carbon surface. These results show that the oxidized carbons represented prospective adsorbents for enhancing the removal of heavy metals from wastewater.
KW - Cotton stalks;KOH activation;HNO3 oxidation;Adsorption of Pb (II) ions
DO -
UR -
ER -

Nady A. Fathy and Iman Y. El-Sherif. (2011). Equilibrium Removal of Pb (II) Ions from Aqueous Solution onto Oxidized-KOH-Activated Carbons. Carbon Letters, 12(1), 1-7.

Nady A. Fathy and Iman Y. El-Sherif. 2011, "Equilibrium Removal of Pb (II) Ions from Aqueous Solution onto Oxidized-KOH-Activated Carbons", Carbon Letters, vol.12, no.1 pp.1-7.

Nady A. Fathy, Iman Y. El-Sherif "Equilibrium Removal of Pb (II) Ions from Aqueous Solution onto Oxidized-KOH-Activated Carbons" Carbon Letters 12.1 pp.1-7 (2011) : 1.

Nady A. Fathy, Iman Y. El-Sherif. Equilibrium Removal of Pb (II) Ions from Aqueous Solution onto Oxidized-KOH-Activated Carbons. 2011; 12(1), 1-7.

Nady A. Fathy and Iman Y. El-Sherif. "Equilibrium Removal of Pb (II) Ions from Aqueous Solution onto Oxidized-KOH-Activated Carbons" Carbon Letters 12, no.1 (2011) : 1-7.

Nady A. Fathy; Iman Y. El-Sherif. Equilibrium Removal of Pb (II) Ions from Aqueous Solution onto Oxidized-KOH-Activated Carbons. Carbon Letters, 12(1), 1-7.

Nady A. Fathy; Iman Y. El-Sherif. Equilibrium Removal of Pb (II) Ions from Aqueous Solution onto Oxidized-KOH-Activated Carbons. Carbon Letters. 2011; 12(1) 1-7.

Nady A. Fathy, Iman Y. El-Sherif. Equilibrium Removal of Pb (II) Ions from Aqueous Solution onto Oxidized-KOH-Activated Carbons. 2011; 12(1), 1-7.

Nady A. Fathy and Iman Y. El-Sherif. "Equilibrium Removal of Pb (II) Ions from Aqueous Solution onto Oxidized-KOH-Activated Carbons" Carbon Letters 12, no.1 (2011) : 1-7.