A molecular dynamics simulation of water transport through C and SiC nanotubes: Application for desalination

International Journal of Nano Dimension

مقاله 2، دوره 2، شماره 3، خرداد 2012، صفحه 151-157   

نوع مقاله: Reasearch Paper

شناسه دیجیتال (DOI): 10.7508/ijnd.2011.03.001

نویسندگان

F. Moradi Garakani^* ؛ R. Kalantarinejad

Aerospace research Institute, Tehran, Iran.

چکیده

In this work the conduction of ion-water solution through two discrete bundles of armchair carbon and silicon carbide nanotubes, as useful membranes for water desalination, is studied. In order that studies on different types of nanotubes be comparable, the chiral vectors of C and Si-C nanotubes are selected as (7,7) and (5,5), respectively, so that    a similar volume of fluid is investigated flowing through two similar dimension membranes. Different hydrostatic pressures are applied and the flow rates of water and ions are calculated through molecular dynamics simulations. Consequently, according to conductance of water per each nanotube, per nanosecond, it is perceived that at lower pressures (below 150 MPa) the Si-C nanotubes seem to be more applicable, while  higher hydrostatic pressures make carbon nanotube membranes more suitable for water desalination.

کلیدواژه‌ها

Carbon Nanotube؛ Silicon carbide nanotube؛ molecular dynamics؛ Desalination