Water transport through nanoporous materials: Porous silicon and single walled carbon nanotubes

Author

Shearer, Cameron ; Velleman, Leonora ; Acosta, Fernando ; Ellis, Amanda ; Voelcker, Nicolas ; Mattia, Davide ; Shapter, Joseph

Author_Institution

Centre for NanoScale Sci. & Technol., Flinders Univ., Bedford Park, SA, Australia

fYear

2010

fDate

22-26 Feb. 2010

Firstpage

196

Lastpage

199

Abstract

We report upon the pressure driven water transport through porous silicon (pSi) and single walled carbon nanotube (SWCNT) membranes. Fabrication of the membranes was monitored by AFM and SEM. Water permeability as high as 16926 mm³ cm^-2 s^-1 atm^-1 is found for the pSi membrane. The SWCNT membrane is built upon the pSi membrane and a water permeability of 0.02 mm³ cm^-2 s^-1 atm^-1 is achieved. Performance comparisons to similar CNT membranes are made and future improvements to the system are proposed.

Keywords

atomic force microscopy; carbon nanotubes; elemental semiconductors; membranes; nanofabrication; nanoporous materials; permeability; porous semiconductors; scanning electron microscopy; self-assembly; silicon; water; AFM; C; H₂O; SEM; Si; nanoporous materials; porous silicon membranes; pressure driven water transport; self-assembly; single walled carbon nanotube membranes; water permeability; Biomembranes; Carbon nanotubes; Etching; Permeability; Polymers; Silicon; Substrates; Carbon nanotube (CNT); carbon nanotube membrane; nanoscale water transport; porous silicon (pSi);

fLanguage

English

Publisher

ieee

Conference_Titel

Nanoscience and Nanotechnology (ICONN), 2010 International Conference on

Conference_Location

Sydney, NSW

Print_ISBN

978-1-4244-5261-3

Electronic_ISBN

978-1-4244-5262-0

Type

conf

DOI

10.1109/ICONN.2010.6045248

Filename

6045248