Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1647825 | Materials Letters | 2011 | 4 Pages |
Conductive microporous membranes were fabricated by the phase inversion technique from pristine multiwalled carbon nanotubes (MWCNT)–polysulfone mixtures. A sonication-assisted method was used to disperse MWCNT in the polysulfone matrix without a covalent modification of the MWCNT or the use of surfactants. Electron Microscopy (SEM) and conduction tests were used to characterize the membranes. SEM pictures indicated that a concentration of 3% of MWCNT allowed a good dispersion of the nanotubes inside the hydrophobic polysulfone matrix. Current–voltage tests showed efficient electron percolation pathways across the membrane as a result of the successful dispersion of pristine MWCNT. These membranes will be applied in separation of charged species where microfiltration together with application of electric fields is needed.