The adsorption mechanism of Pb2+, Cd2+, Ni2+ and Co2+ onto activated carbon particles
Zhang, Y.; Zhang, K.; Luo, Y.; Li, C.; Jiang, L.
Hua Xi Yi Ke Da Xue Xue Bao 26(3): 322-325
1995
ISSN/ISBN: 0257-7712 PMID: 8586402 Document Number: 443228
The adsorption of Pb-2+, Cd-2+, Ni-2+, Co-2+ on activated carbon particles was studied as a function of pH and concentrations of adsorbates. These results showed that the adsorption was strongly pH dependent and all the adsorption isotherms were in agreement with Freundlich equation. The adsorption could be explained by the surface complexation model. Conditional adsorption constants of surface complexes of Pb-2+, Cd-2+, Ni-2+ and Co-2+ with activated carbon particles were calculated by a simplified surface complexation model.
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