Water desalination using charged-carbon nanotube

Using molecular dynamics simulations, we show that a graphene-charged carbon nanotube membrane can beused to separate Na+ and Cl¯ ions from a NaCl solution. The structure contains a movable wall to push the solution towardthe entrance of the CNT. It is observed that this nano-filter can separate the salt’s ions. Two key factors in ion separationprocess are the magnitude of attached electrical point charge to the CNT and the velocity of movable wall. Results showthat ion separation was improved by increasing the magnitude of electrical point charge and by decreasing the velocityof movable wall.

کلیدواژه ها:

Desalination ، Graphene-carbon nanotube membrane ، Ion separation ، Molecular dynamics simulation