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Research Journals >
Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.11 [2004] >
IJCT Vol.11(1) [January 2004] >
| Title: | Metal complexation on functionalised polymer supports–An adsorption/complexation phenomenon |
| Authors: | Chettiar, K Sivadasan
Sreekumar, K |
| Issue Date: | Jan-2004 |
| Publisher: | CSIR |
| IPC Code: | C01G51/00; C01G3/00; C08G85/00 |
| Abstract: | The present study is aimed at
preparing polymer metal complexes of Co(II) and Cu(II) under controlled
conditions of concentration, time, temperature and pH The complexes are derived
from DVB crosslinked polystyrene and poly(hydroxyethyl methacrylate) supported
thiosemicarbazone-transition metal interaction. Crosslinked polymer ligand
beads with definite porosity can adsorb metal ions. The question whether metal
complexation is a case of adsorption and coordination, is investigated.
Kinetics and thermodynamics of adsorption of metal ions on the polymeric ligand
with proper surface structures is determined. The equilibrium metal intake by
10 and 15% crosslinked resins at constant temperature was utilised to construct
Langmuir and Freundlich adsorption isotherms. The influence of temperature on
the extent of adsorption was studied by plotting isotherms at different
temperatures and calculating different thermodynamic parameters. |
| Page(s): | 59-66 |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.11(1) [January 2004]
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