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

Table 4

The required pressure to complete RO process.

CNT	Diameter (Å)	𝑉 (Å^3)	𝑃 (MPa)
(5, 5)	6.785	88.7503758	285
(6, 6)	8.142	127.8005411	258
(7, 7)	9.499	173.9507366	221
(8, 0)	6.268	139.7187241	109
(10, 0)	7.834	218.3105064	64
(12, 0)	9.401	314.3671292	62