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The influence of the interior structure of aliquat 336/PVC membranes to their extraction behavior

journal contribution
posted on 2005-01-01, 00:00 authored by Jianying Xu, L Wang, W Shen, R Paimin, Xungai Wang
In this study, new results of the cross-sectional structures of Aliquat 336/PVC-based composite membranes were obtained using Scanning Electron Microscopy (SEM). The SEM images show that micro channels exist when the Aliquat 336 content reaches a certain level. Our data suggests that this level is between 30-40% (m/m) Aliquat 336/PVC. The extraction of Cd(II) using these membranes clearly shows that the micro channels in the membrane facilitated the transportation of the free Aliquat 336 molecules and the Aliquat 336-CdCl 3 ion pairs within the membrane and as such enhances the extraction rate. Results of this study provide valuable information for future work in modeling of the extraction mechanism.

History

Journal

Separation science and technology

Volume

39

Issue

15

Pagination

3527 - 3539

Publisher

Taylor & Francis

Location

London, Eng.

ISSN

0149-6395

Language

eng

Publication classification

C Journal article; C1.1 Refereed article in a scholarly journal

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