Synthesis of N2O2S2-Schiff base ligand and using it to transport Cu2+ through bulk liquid membrane

Abstract EN

Two new Schiff bases (I) and (II) containing nitrogen-sulfur-oxygen donor atoms, were designed and synthesized in a multi-step reaction sequence.

Transport of copper ion across a bulk chloroform membrane containing Schiff base(I) as carrier has been studied.

The parameters influencing the transport efficiency such as composition of receiving phase, pH of the feed phase, carrier concentration in the membrane, EDTA concentration in the receiving phase, effect of temperature and time dependency of the process were studied and discussed.

The selectivity of the processes towards copper ions were tested by performing the competitive transport experiments on the mixture containing Pb2+, Ni2+, Cd2+, Zn2+ and Co2+ ions.

The amount of copper transport through the liquid membrane after 180 min arrived to 98% at 25°C.