@article{ART001261521},
author={Kwan-Ho Park and Chang-Ho Lee and Seung-Kon Ryu and Xiaoping Yang},
title={Zeta-potentials of Oxygen and Nitrogen Enriched Activated Carbons for Removal of Copper Ion},
journal={Carbon Letters},
issn={1976-4251},
year={2007},
volume={8},
number={4},
pages={321-325}
TY - JOUR
AU - Kwan-Ho Park
AU - Chang-Ho Lee
AU - Seung-Kon Ryu
AU - Xiaoping Yang
TI - Zeta-potentials of Oxygen and Nitrogen Enriched Activated Carbons for Removal of Copper Ion
JO - Carbon Letters
PY - 2007
VL - 8
IS - 4
PB - Korean Carbon Society
SP - 321
EP - 325
SN - 1976-4251
AB - The oxygen and nitrogen enriched activated carbons were obtained from modification of commercial activated carbon by usingnitric acid, sodium hydroxide and urea. Zeta-potentials of modified activated carbons were investigated in relation to copper ionadsorption. The structural properties of modified activated carbons were not so much changed, but the zeta-potentials andthan other activated carbons in the entire pH region, and the pHIEP was shifted from pH 4.8 to 2.6, resulted in the largest copperion adsorption capacities compare with other activated carbons in the range of pH 3~6.5. In case of urea modified activatedcarbon, copper ion adsorption was larger than that of the as-received activated carbon from pH 2 to pH 6.5 even though the pHIEPwas shifted to pH 6.0, it was due to the coordination process operated between nitrogen functional groups and copper ion. Theadsorption capacity of copper ion was much influenced by zeta-potential and pHIEP of carbon adsorbent.
KW - 1. IntroductionAdsorption of metal ions on activated carbon (AC) fromaqueous solution is depending on the surface chemistry andpH of solution. Surface chemistry of carbon materials wasinfluenced by acidic;basic or neutral functional groups.Many rese
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Kwan-Ho Park, Chang-Ho Lee, Seung-Kon Ryu and Xiaoping Yang. (2007). Zeta-potentials of Oxygen and Nitrogen Enriched Activated Carbons for Removal of Copper Ion. Carbon Letters, 8(4), 321-325.
Kwan-Ho Park, Chang-Ho Lee, Seung-Kon Ryu and Xiaoping Yang. 2007, "Zeta-potentials of Oxygen and Nitrogen Enriched Activated Carbons for Removal of Copper Ion", Carbon Letters, vol.8, no.4 pp.321-325.
Kwan-Ho Park, Chang-Ho Lee, Seung-Kon Ryu, Xiaoping Yang "Zeta-potentials of Oxygen and Nitrogen Enriched Activated Carbons for Removal of Copper Ion" Carbon Letters 8.4 pp.321-325 (2007) : 321.
Kwan-Ho Park, Chang-Ho Lee, Seung-Kon Ryu, Xiaoping Yang. Zeta-potentials of Oxygen and Nitrogen Enriched Activated Carbons for Removal of Copper Ion. 2007; 8(4), 321-325.
Kwan-Ho Park, Chang-Ho Lee, Seung-Kon Ryu and Xiaoping Yang. "Zeta-potentials of Oxygen and Nitrogen Enriched Activated Carbons for Removal of Copper Ion" Carbon Letters 8, no.4 (2007) : 321-325.
Kwan-Ho Park; Chang-Ho Lee; Seung-Kon Ryu; Xiaoping Yang. Zeta-potentials of Oxygen and Nitrogen Enriched Activated Carbons for Removal of Copper Ion. Carbon Letters, 8(4), 321-325.
Kwan-Ho Park; Chang-Ho Lee; Seung-Kon Ryu; Xiaoping Yang. Zeta-potentials of Oxygen and Nitrogen Enriched Activated Carbons for Removal of Copper Ion. Carbon Letters. 2007; 8(4) 321-325.
Kwan-Ho Park, Chang-Ho Lee, Seung-Kon Ryu, Xiaoping Yang. Zeta-potentials of Oxygen and Nitrogen Enriched Activated Carbons for Removal of Copper Ion. 2007; 8(4), 321-325.
Kwan-Ho Park, Chang-Ho Lee, Seung-Kon Ryu and Xiaoping Yang. "Zeta-potentials of Oxygen and Nitrogen Enriched Activated Carbons for Removal of Copper Ion" Carbon Letters 8, no.4 (2007) : 321-325.
