ABSTRACT
Prepare a measured amount of deionized water (DI-H1. 2O). Add sodium dodecyl sulfate (SDS) to the DI-H2. 2O at 1 percent concentration. is will serve as a surfactant for the nanotubes, which are hydrophobic and normally do not disperse well in water. Prepare an amount of single-walled carbon nanotubes (SWNTs) that measure1nm to 2nm in diameter 3. and are 90 percent pure. Add the SWNTs to the DI-H4. 2O and SDS solution. Aer sonication, the nanotubes are well dispersed in solution.5. Prepare a wash of methanol or ethanol (MeOH/EtOH) and DI-H6. 2O. Introduce the nanotube solution into a vacuum microltration system.7. Set the vacuum pressure of the ltration system to 35 kPa.8. Draw the solution down into the bottom chamber of the ltration system, leaving the SWNTs on the 9. microltration membrane. Add the MeOH/EtOH and DI-H10. 2O wash, and pass it through the ltration system. e SWNTs form a buckypaper sheet due to intermolecular non-covalent bonds (van der Waals 11. attraction). Slowly dry the buckypaper and remove it from the microltration membrane.12.
