Title :
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
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);
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
DOI :
10.1109/ICONN.2010.6045248
