Efficient Facilitated Transport of Lead and Cadmium Across a Plasticized Triacetate Membrane Mediated by D2EHPA and TOPO

Omar Arous, Fairouz Saad Saoud, Mourad Amara, Hacène Kerdjoudj

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Laboratory of Hydrometallurgy and Inorganic Molecular Chemistry, U.S.T.H.B-Faculty of Chemistry, POBOX 32 El Alia, 16111 Bab Ezzouar, Algeria.

DOI: 10.4236/msa.2011.26083                

Abstract

Cellulose triacetate membranes doped with organo-phosphoric carriers (2-ethylhexyl) phosphoric acid noted (D2EHPA) or trioctyl phosphine oxide noted (TOPO) as fixed carriers and 2-nitro phenyl octyl ether noted (NPOE) or tris ethylhexyl phosphate noted (TEHP) as a plasticizers have been prepared and applied for investigation to the facilitated transport of Pb(II) and Cd(II) ions from aqueous nitrate source phase. The membranes Polymer-Plasticizer- Carrier were characterised using chemical techniques as well as Fourier Transform Infra-Red (FTIR), X-ray Diffraction and Scanning electron microscopy (SEM). A study of the transport across a polymer inclusion membrane has shown that the lead or cadmium transport efficiency was increased using D2EHPA as carrier at pH 1-2.

Keywords

Cellulose Triacetate, NPOE, TEHP, D2EHPA, TOPO, Membrane

Conflicts of Interest

The authors declare no conflicts of interest.

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