Open AccessEffect of Different Cations on the Adsorption of Dy3+, Gd3+, Eu3+ and Sm3+ Ions on Activated Charcoal from Aqueous Solutions
Author(s) -
Riaz Qadeer,
Imtiaz Hanif,
Javed Hanif
Publication year - 1996
Publication title -
adsorption science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.682
H-Index - 36
eISSN - 2048-4038
pISSN - 0263-6174
DOI - 10.1177/026361749601300104
Subject(s) - chemistry , adsorption , aqueous solution , ion , metal ions in aqueous solution , inorganic chemistry , qualitative inorganic analysis , metal , analytical chemistry (journal) , nuclear chemistry , organic chemistry , chromatography
The effect of different cations on the adsorption of Dy 3+ , Gd 3+ , Eu 3+ and Sm 3+ ions on activated charcoal from aqueous solutions (pH = 4.0) has been studied at room temperature (295 ± 1 K). Their effect on the adsorption of the metal ions has been correlated with the charge density (Z/r) of the cations. It was observed that cations with a larger Z/r value reduced the adsorption of metal ions more than cations with smaller Z/r values. It was also observed that the ease of adsorption of the metal ions followed the sequence: Dy 3+ > Gd 3+ > Eu 3+ > Sm 3+ . Such data are important in relation to the recovery of metal ions from solution.