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JSIR Vol.64 [2005] >
JSIR Vol.64(09) [September 2005] >
| Title: | Separation of lead ions from aqueous solutions by adsorption at talc surface |
| Authors: | Chandra, Navin
Agnihotri, Nitin
Sharma, Priya
Bhasin, Sanjeev
Amritphale, S S |
| Keywords: | Talc surface
Adsorption
Lead ion
Temperature effect
Langmuir isotherm
Thermodynamic parameters
Ions separation |
| Issue Date: | Sep-2005 |
| Publisher: | CSIR |
| IPC Code: | B 01 D 15/00 |
| Abstract: | Separation of lead ions from aqueous
solutions containing 5, 10, 20, 50, 100, 200 and 500 ppm lead was studied by
adsorption at the surface of talc mineral of Indian origin. The effect of
temperature (20, 30, 40, 50, 60, 70oC) on adsorption phenomena was
studied and the data was analyzed using Langmuir isotherm. The changes in
enthalpy ( H),
free energy (G) and entropy (S) were evaluated. The negative values of G and H indicate the adsorption of lead ions
on talc surface to be spontaneous and exothermic under the experimental
conditions. |
| Page(s): | 674-678 |
| ISSN: | 0975-1084 (Online); 0022-4456 (Print) |
| Source: | JSIR Vol.64(09) [September 2005]
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