Studies on the electrochemical and permeation characteristics of asymmetric charged porous membranes

Development of urethane acrylate composite ion-exchange membranes and their electrochemical characterization

“…ϕ w values were also decreased with the decrease in wavelength of UV radiation for same type of composite IEM. Also for urethane acrylate composite IEM, ϕ w decreased with the decrease in IEC of the membranes, as is the case with all other IEM [17,18] (i.e., as the IEC of the polymer increases, it becomes more hydrophilic and sorbs more water responsible for the increase in ϕ w values). Contact angles of different dry membranes were measured and its mean value, for four different sample of same type of membrane, are also presented in Table 2.…”

Fluid flow modeling in a sulfonated cation‐exchange membrane

“…Therefore, in this work, the equivalent pore radius value is in the order of magnitude to those of average channels radius for the NF117 membrane given in the literature. 9,22,18,30,31 It is worth mentioning that Eikerling et al…”

Enhancing performance of hybrid liquid membrane process supported by porous anionic exchange membranes for removal of cadmium from wastewater

“…Since the permselectivity in an anion membrane is due to the nature of membrane for discrimination between anions (counterions) and cations (coions) because of the nature and amount of the charge that the membrane matrix carries, the so-called fixed charge concentration on the membrane surface (X) is expressed in terms of permselectivity by the following equation [27]:…”