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. Author manuscript; available in PMC: 2019 May 23.
Published in final edited form as: Ind Eng Chem Res. 2008 Jun 20;47(14):4586–4597. doi: 10.1021/ie800142d

Figure 4.

Figure 4.

Effect of functionalization on PVDF membrane, as depicted by the curve of permeate flux versus pressure. Pore radius of the pure PVDF membrane = 225 nm, pore radius of PVDF–PAA–PAH–GOX membrane = 100 nm. Water (pH 6) permeability values for different steps of functionalized membrane are given by the slope of the curves. External membrane area = 13.2 cm2, membrane thickness = 125 μm.