@article{ART001411903},
author={S. A. Sayed Ahmed},
title={Removal of Toxic Pollutants from Aqueous Solutions by Adsorption onto Organo-kaolin},
journal={Carbon Letters},
issn={1976-4251},
year={2009},
volume={10},
number={4},
pages={305-313}
TY - JOUR
AU - S. A. Sayed Ahmed
TI - Removal of Toxic Pollutants from Aqueous Solutions by Adsorption onto Organo-kaolin
JO - Carbon Letters
PY - 2009
VL - 10
IS - 4
PB - Korean Carbon Society
SP - 305
EP - 313
SN - 1976-4251
AB - In this study, the adsorption of toxic pollutants onto cetyltrimethylammonium kaolin (CTAB-Kaolin) is investigated. The
organo-kaolin is synthesized by exchanging cetyltrimethylammonium cations (CTAB) with inorganic ions on the surface of
kaolin. The chemical analysis, the structural and textural properties of kaolin and CTAB-kaolin were investigated using
elemental analysis, FTIR, SEM and adsorption of nitrogen at −196oC. The kinetic adsorption and adsorption capacity of the
organo-kaolin towards o-xylene, phenol and Cu(II) ion from aqueous solution was investigated. The kinetic adsorption data of
o-xylene, phenol and Cu(II) are in agreement with a second order model. The equilibrium adsorption data were found to fit
Langmuir equation. The uptake of o-xylene and phenol from their aqueous solution by kaolin, CTAB-kaolin and activated
carbon proceed via physisorption. The removal of Cu(II) ion from water depends on the surface properties of the adsorbent.
Onto kaolin, the Cu(II) ions are adsorbed through cation exchange with Na+. For CTAB-kaolin, Cu(II) ions are mainly
adsorbed via electrostatic attraction with the counter ions in the electric double layer (Br−), via ion pairing, Cu(II) ions
removal by the activated carbon is probably related to the carbon-oxygen groups particularly those of acid type. The
adsorption capacities of CTAB-kaolin for the investigated adsorbates are considerably higher compared with those of unmodified
kaolin. However, the adsorption capacities of the activated carbons are by far higher than those determined for
CTAB-kaolin.
KW - Organo-kaolin;Phenol;o-xylene;Cu(II);Adsorption;Kinetics
DO -
UR -
ER -
S. A. Sayed Ahmed. (2009). Removal of Toxic Pollutants from Aqueous Solutions by Adsorption onto Organo-kaolin. Carbon Letters, 10(4), 305-313.
S. A. Sayed Ahmed. 2009, "Removal of Toxic Pollutants from Aqueous Solutions by Adsorption onto Organo-kaolin", Carbon Letters, vol.10, no.4 pp.305-313.
S. A. Sayed Ahmed "Removal of Toxic Pollutants from Aqueous Solutions by Adsorption onto Organo-kaolin" Carbon Letters 10.4 pp.305-313 (2009) : 305.
S. A. Sayed Ahmed. Removal of Toxic Pollutants from Aqueous Solutions by Adsorption onto Organo-kaolin. 2009; 10(4), 305-313.
S. A. Sayed Ahmed. "Removal of Toxic Pollutants from Aqueous Solutions by Adsorption onto Organo-kaolin" Carbon Letters 10, no.4 (2009) : 305-313.
S. A. Sayed Ahmed. Removal of Toxic Pollutants from Aqueous Solutions by Adsorption onto Organo-kaolin. Carbon Letters, 10(4), 305-313.
S. A. Sayed Ahmed. Removal of Toxic Pollutants from Aqueous Solutions by Adsorption onto Organo-kaolin. Carbon Letters. 2009; 10(4) 305-313.
S. A. Sayed Ahmed. Removal of Toxic Pollutants from Aqueous Solutions by Adsorption onto Organo-kaolin. 2009; 10(4), 305-313.
S. A. Sayed Ahmed. "Removal of Toxic Pollutants from Aqueous Solutions by Adsorption onto Organo-kaolin" Carbon Letters 10, no.4 (2009) : 305-313.
