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Title: Synthesis, characterization and analytical applications of zirconium (IV) diethanolamine
Authors: Singh, D K
Kumar, Vijay
Keywords: Ion exchanger;Zirconium(IV) dithanolamine;Sorption of metal ions;Separation of Hg2+ , Cu2+
Issue Date: May-2009
Publisher: CSIR
Abstract: A new chelating ion exchanger, zirconium(IV) diethanolamine has been synthesized, characterized and studied for sorption of eight heavy metal ions at different pH (1-6). Sorption capacity of zirconium (IV)-diethanolamine sample (ZDEA5) for Cu2+ and Hg2+ was found to be 1.2 and 0.7 mmol g–1, respectively. The effect of pH on sorption revealed that capacity generally decreases with decrease in pH and optimum pH for maximum sorption is 6. The distribution coefficients of metal ions on ZDEA5 as a function of pH have been studied. Separations of Hg2+ from its mixture with Zn2+, Cd2+, Ni2+, Fe3+ and Cu2+ from its mixture with Fe3+, Ni2+ and Zn2+ have been achieved quantitatively on a mini-column of ZDEA5.On the basis of high selectivity and good sorption in acidic aqueous solutions a mini-column of ZDEA5 has also been tested for recovery of Hg2+ from dilute solutions.
Page(s): 254-258
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.16(3) [May 2009]

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