Adsorption of zinc, cadmium and mercury ions from aqueous solutions on an activated carbon cloth

被引:139
作者
Babic, BM [1 ]
Milonjic, SK [1 ]
Polovina, MJ [1 ]
Cupic, S [1 ]
Kaludjerovic, BV [1 ]
机构
[1] Vinca Inst Nucl Sci, YU-11001 Belgrade, Yugoslavia
关键词
activated carbon; carbon cloth; adsorption properties;
D O I
10.1016/S0008-6223(01)00256-1
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The adsorption of zinc, cadmium and mercury ions from aqueous solutions on an activated carbon cloth was studied as a function of their concentrations and solution pH. For that purpose, pertinent adsorption isotherm data was collected at different pH values. The amount of adsorbed zinc and cadmium ions increases while the amount of adsorbed mercury remains constant with an increase in the equilibrium pH of the solution. The adsorption mechanisms of metal ions on activated carbon cloth are discussed, Under the conditions investigated, these primarily involve adsorption of monovalent cations (Zn and Cd) or precipitation of metal hydroxides (Cd and Hg) on the activated carbon cloth tested. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1109 / 1115
页数:7
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