Dialytic separation of bundled, Functionalized carbon nanotubes from carbonaceous impurities

J. Justin Mulvey, Evan N. Feinberg, Michael R. McDevitt, David A. Scheinberg

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Separating functionalized single-wall carbon nanotubes (SWCNTs) from functionalized amorphous carbon is challenging, due to their polydispersity and similar physicochemical properties. We describe a single-step, dialytic separation method that takes advantage of the ability of heavily functionalized SWCNTs to bundle in a polar environment while maintaining their solubility. Experiments on functionalized SWCNTs were compared with functionalized, C60 fullerenes (buckyballs) to probe the general applicability of the method and further characterize the bundling process. This approach may simultaneously be used to purify a functionalization reaction mixture of unreacted small molecules and of residual solvents, such as dimethylformamide.

Original languageEnglish (US)
Pages (from-to)450-465
Number of pages16
Issue number4
StatePublished - Nov 20 2014
Externally publishedYes


  • Amorphous carbon
  • Bundling
  • C
  • Dialysis
  • Functionalization
  • Graphitic carbon
  • Nanotube
  • Purification

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Inorganic Chemistry


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