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(a) Picture of a sulfonated sPES UF membrane from Pentair X-Flow, and schematic presentations of (b) alternately deposited PEs (only 2 PEs are given for matters of simplicity), including a summary of the separation properties, (c) a zoom-in of the interfaces inside the lumen, (d) molecular structures of the PES used in this study. Reprinted from [198], with permission from Elsevier.
