Figure 8.
The SEM images of surfaces and cross-sections of composite NF membranes: TFC-blank (a1,a2), TFN-GHC-10 (b1,b2), TFN-GHC-20 (c1,c2), TFN-GHC-40 (d1,d2), TFN-GHC-60 (e1,e2), TFN-GHC-80 (f1,f2).
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