Transport mechanism of chromium(III) through the unmixed bulk liquid membrane containing dinonylnaphthalenesulfonic acid as a carrier

摘要: Abstract Cr(III) transport through the unmixed bulk liquid membrane containing di-nonylnaphthalenesulfonic acid (DNNSA) as a carrier has been investigated. The concentration of chromium in strip solution and viscosity versus DNNSA it was measured. results indicated that present threshold content (near 0.32 mol dm −3 ) common facilitated is changing to another kind which more effective than diffusion mechanism. maximum curve flux found increase observed. It seems distance between neighboring molecules decreases there possibility ions jump from one complexing center another. We suppose might be “jumping” theoretically predicted by Cussler et al. [27] . shown obtain effect system needs certain time-lag (about 0.5 h). During this time new structure self-organized inside membrane.