The effect of fullerene (C60) nanoparticles on the surface of PVDF composite membrane

Kyung Hee Kim, Ju Sung Lee, Hyun Pyo Hong, Jun Young Han, Jin Won Park, Byoung Ryul Min

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Polyvinylidene fluoride/fullerene nanoparticle (PVDF/C60) composite microfiltration (MF) membranes were fabricated by a non-solvent induced phase separation (NIPS) using N, N-dimethylacetamide (DMAc) as solvent and deionized water (DI) as coagulation solution. Polyvinylpyrrolidone (PVP) was added to the casting solution to form membrane pores. C60 was added in increments of 0.2% from 0.0% to 1.0% to produce six different membrane types: one pristine PVDF membrane type with no C60 added as control, and five composite membrane types with varying C60 concentrations of 0.2, 0.4, 0.6, 0.8 and 1.0%, respectively. The mechanical strength, morphology, pore size and distribution, hydrophilicity, surface property, permeation performance, and fouling resistance of the six membranes types were characterized using respective analytical methods. The results indicate that membranes containing C60 have higher surface porosity and pore density than the pristine membrane. The presence of numerous pores on the membrane caused weaker mechanical strength, but the water flux of the composite membranes increased in spite of their smaller size. Initial flux and surface roughness reached the maximum point among the composite membranes when the C60 concentration was 0.6 wt.%.

Original languageEnglish
Pages (from-to)423-437
Number of pages15
JournalMembrane Water Treatment
Volume6
Issue number5
DOIs
Publication statusPublished - 2015

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Water Science and Technology

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