Abstract
Ultrafiltration membranes were prepared from blend of the poly(vinylidene fluoride) (PVDF) with polyacrylonitrile (PAN) via phase inversion method induced by immersion precipitation. N,N-dimethylacetamide (DMAc) and water were used as solvent and coagulant (non-solvent), respectively. The effect of blending ratio on the morphology and antifouling behavior of the prepared membranes was investigated. The performance of the membranes was evaluated by using cross flow filtration of pure water and buffered bovine serum albumin (BSA) solution as feed. Contact angle measurements indicated that the hydrophilicities of the PVDF/PAN membranes increased by increasing PAN concentration in the casting solution. The minimum BSA rejection was obtained for the membrane with 10% of PAN. However, higher values of PAN result in pore blockage of the membrane and an increase in the irreversible fouling resistance.
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Change history
24 May 2017
An erratum to this article has been published.
Abbreviations
- A:
-
Effective membrane cross-section (cm2)
- Cp :
-
Protein concentration in permeate feed solution
- Cf :
-
Protein concentration in feed solution
- EWC :
-
Membrane equilibrium water content (%)
- FRR:
-
Flux recovery ratio (%)
- \( J_{{{\text{w}}_{1} }} \) :
-
Pure water flux (\( \frac{L}{{m^{2} h}} \))
- Jp :
-
Protein solution flux (\( \frac{L}{{m^{2} h}} \))
- L:
-
Wet membrane thickness (µm)
- m1 :
-
Weight of wet membrane (g)
- m2 :
-
Weight of dry membrane (g)
- MWCO:
-
Molecular weight cutoff (kDa)
- PWF:
-
Pure water flux (\( \frac{L}{{m^{2} h}} \))
- R :
-
Rejection of membrane (%)
- Rt :
-
Total flux decrease due to total fouling
- Rr:
-
Flux reduction due to reversible
- Rir:
-
Flux reduction due to irreversible fouling
- TMP:
-
Transmembrane pressure (KPa)
- ∆t:
-
Permeability time (h)
- V:
-
Volume of permeate stream through membrane (L)
- WA :
-
Membrane adhesion work
- δ :
-
Solubility parameter (\( \left( {\frac{Cal}{{cm^{3} }}} \right)^{1/2} \))
- ɛ :
-
Membrane porosity (%)
- ρw :
-
Water density (0.998 g/cm3)
- γw :
-
Water surface tension (\( 7.2 \times 10^{ - 2} \frac{N}{\text{m}} \))
- θ:
-
Contact angle
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An erratum to this article is available at https://doi.org/10.1007/s10924-017-1027-0.
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Anvari, A., Yancheshme, A.A., Rekaabdar, F. et al. PVDF/PAN Blend Membrane: Preparation, Characterization and Fouling Analysis. J Polym Environ 25, 1348–1358 (2017). https://doi.org/10.1007/s10924-016-0889-x
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DOI: https://doi.org/10.1007/s10924-016-0889-x