Table 3.

Salt rejection performance achieved by key reported CNT membrane types

CNT density	CNT inner diameter (nm)	Membrane type	Salt rejection (%)
2.5 × 1011 (Corry 2008)	0.8	Vertically aligned (VA)	100
2.5 × 1011 (Corry 2008)	1.5	Vertically aligned (VA)	95
5 × 109 (this paper)			96.92
1 × 1010 (this paper)	5	Vertically aligned	96.99
5 × 1010 (this paper)		(VA)	97.10
1 × 1011 (this paper)			97.26
20 wt% CNT (Thomas and Corry 2015)	1.5	Mixed matrix (MM)	93
0.05 wt% CNT (Ocvirk et al. 2000)	5	Mixed matrix (MM)	87