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. 2013 May 26;58(8):1173–1243. doi: 10.1016/j.pmatsci.2013.05.001

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Copyright © 2013 Elsevier Ltd. All rights reserved.

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Fig. 38 — FE-SEM images of (a) PA-66 and (b) PA-66/BaCl₂ NFN membranes. Filtration efficiency (c) and (d) pressure drop of composite membranes variation versus ESN time [218]. Reprinted with permission from [218]. © 2012 Royal Society of Chemistry.

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