Facilitated transport of Zn(II), Cd(II) and Pb(II) across polymer inclusion membranes doped with imidazole azocrown ethers

Removal of Cr(VI) through calixarene based polymer inclusion membrane from chrome plating bath water

“…To investigate the effect of plasticizer type on the transport we prepared the membranes with seven different plasticizers. In Table 2, the type of plasticizers and their physical properties was shown [22][23][24][25][26]. As it can be seen from the Table 2, it was achieved the best transport efficiency when 2-nitrophenyl pentylether (2-NPPE) was used.…”

PNP-16-crown-6 derivatives as ion carriers for Zn(II), Cd(II) and Pb(II) transport across polymer inclusion membranes

“…These large separation factors among divalent heavy metal cations are higher than those reported by Hayashi et al for separation of lead from copper in a PIM transport system with proton-ionizable polyether as carrier [27], as well than those reported by Sgarlata et al [28]. Although these papers deal with the separation of some transition metal ions, only Ulewicz et al [29,30] report on the selective separation of Zn(I), Cd(II) and Pb(II) from mixtures using macrocylic carriers, however these results show lowest selectivity and efficiency. To our knowledge, this is the first report of successful separation with a PIM system of Pb(II) from a source phase solutions containing a mixture of Zn(II), Cd(II) and Pb(II).…”

Cadmium (II) and lead (II) transport in a polymer inclusion membrane using tributyl phosphate as mobile carrier and CuFeO2 as a polarized photo electrode

“…Environmentally damaging and toxic cations have received significantly less attention primarily due to the challenging nature of selectively binding cations [13].…”