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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
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.
Description: 409-413
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.19(6) [November 2012]

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