The Effect of highly dispersed oxidized multi-walled carbon nanotubes on the performance of PVDF/PVC ultrafiltration membrane

نویسنده:
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سال
: 2016
چکیده: In this study, functionalized multi-walled carbon nanotubes (F-MWCNTs) were used to

modify the polyvinylidene fluoride (PVDF)/polyvinyl chloride (PVC) blend UF membrane

via solution blending method. The effect of F-MWCNTs dosage (0–1%) on the properties

and performance of PVDF/PVC/F-MWCNTs membranes was investigated. The prepared

blend membranes were characterized by Fourier Transform Infrared spectroscopy (FT-IR),

Scanning Electron Microscopy (SEM), Field Emission Scanning Electron Microscopy

(FESEM), contact angle, and tensile strength techniques. Results showed that hydrophilicity

of membranes was enhanced with increase of F-MWCNTs content. The performance of the

membranes was evaluated in terms of pure water flux (PWF) and dextran filtration. The

results showed that presence of F-MWCNTs in polymer matrix improved performance and

antifouling properties of PVDF/PVC blend membrane. Accordingly, incorporation of

0.3–0.5 wt.% of F-MWCNTs represented maximum dextran rejection and permeate flux,

respectively.
کلیدواژه(گان): Functionalized multi-wall carbon nanotube,Ultrafiltration,Hydrophilicity,Antifouling
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