Fabrication of a lead ion selective membrane based on a polycarbazole Sn(iv) arsenotungstate nanocomposite and its ion exchange membrane (IEM) kinetic studies

Abstract

A polycarbazole-Sn(iv) arsenotungstate (Pcz-SnAT) nanocomposite cation exchanger membrane (CEM) was prepared via the casting solution technique utilizing polycarbazole-Sn(iv) arsenotungstate and PVC (polyvinyl chloride) as a binder.

Studies on ion selectivity of parchment impregnated Ba(II) molybdate artificial membrane

“…The bi-ionic potential (BIP) is defined as a potential difference arising between the solutions of different electrolyte with same molar concentrations at a constant temperature and pressure when they are separated by a uniform charged membrane [13][14][15]. Depending on the transport mechanism or the assumption made in the derivation, the permeability ratio has been given various physical meaning as mobility ratio [16], ion exchange equilibrium constant [17], the product of the mobility ratio and Donnan ratio [18,19], the product of the mobility ratio and the distribution coefficient ratio [20], the product of the mobility ratio and ion exchange equilibrium constant [21,22] or the product of the equivalent conductance ratio and the ratio of partition coefficient [23]. Sandblom and Eisenman [23][24][25] have discussed the significance and implication of the observed permeability ratio.…”