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Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.19 [2012] >
IJCT Vol.19(6) [November 2012] >
| Title: | Highly selective transport of Pb2+ ion through a liquid membrane containing 1, 4, 8, 11-tetraazacyclotetradecane as a carrier |
| Authors: | Khayatian, Gholamreza
Esmaeily, Farzad |
| Keywords: | Crown ether
Lead ion
Liquid membrane transport
Tetraaza-14-crown-4 |
| Issue Date: | Nov-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Tetraaza-14-crown-4
has been used as a highly selective and efficient carrier for the uphill
transport of Pb2+ ion through a chloroform bulk liquid membrane. By
using pyrophosphate as a metal ion acceptor in the receiving phase, the amount
of Pb2+ transported across the liquid membrane after 90 min is found
to be 95 ± 2.6 %. The selectivity and efficiency of lead ion transported from
aqueous solution containing equimolar mixtures of Cu2+, Hg2+,
Ca2+, Mg2+, K+, Na+, Ni2+,
Zn2+, Fe3+, Ag+ and Cd2+are also
investigated. The proposed system reveals not only an improved selectivity for
Pb2+ ion transport, but also a much lower transport time.
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| Page(s): | 409-413 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.19(6) [November 2012]
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