Research Article

Ab Initio Density Functional Theory Investigation of the Interaction between Carbon Nanotubes and Water Molecules during Water Desalination Process

Table 3

The energy of CNT with water, , , band gap, the interaction energy ( ), and the change in band gap.

CNT (eV)HOMO (eV)LUMO (eV) (eV) (Kcal/mol) (eV)

(5, 5)−22693.537−4.467−1.9232.5443.6342.608
(6, 6)−26819.828−6.179−1.8194.360−4.7381.013
(7, 7)−30946.226−6.604−1.8184.786−5.5430.714
(8, 0)−35067.597−5.059−3.4281.631−2.1850.046
(10, 0)−43320.898−5.138−3.6671.471−2.0010.004
(12, 0)−51573.369−4.483−4.2750.2072.8290.021