Heavy metal ion uptake properties of polystyrene-supported chelating polymer resins |
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| Authors: | A Ravikumar Reddy and K Hussain Reddy |
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| Institution: | (1) Department of Chemistry, Sri Krishnadevaraya University, 515 003 Anantapur, India |
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| Abstract: | Metal ion uptake properties of polystyrene-supported chelating polymer resins functionalized with (i) glycine, (ii) hydroxy
benzoic acid, (iii) Schiff base and (iv) diethanol amine have been investigated. The effects of pH, time and initial concentration
on the uptake of metal ions have been studied. The uptake of metal ion depends on pH. The resins are more selective at pH
10 for Pb(II) and Hg(II), whereas at pH 6 they are found to be Cd(II) and Cr(VI) selective. Metal ion uptake properties of
resins follow Freundlich’s equation. The resins are recyclable and are therefore employed for the removal of heavy metal pollutants
from industrial waste water. |
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| Keywords: | Uptake properties heavy metal ion selectivity recyclability |
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