Table 2.

Number of HB bonds per water molecule and the corresponding water dipolar relaxation time for confined water and NaCl solution in both PG and GO channels.

		PG		GO
		${\tau }_{\text{HB}}\left(\text{ps}\right)$	${\text{n}}_{\text{HB}}/{\text{H}}_2\text{O}$	${\tau }_{\text{HB}}\left(\text{ps}\right)$	${\text{n}}_{\text{HB}}/{\text{H}}_2\text{O}$
Pure water		2.12 ± 0.04	0.05 ± 0.005	2.35 ± 0.10	0.062 ± 0.005
	0.1	1.72 ± 0.06	0.041 ± 0.004	1.98 ± 0.04	0.052 ± 0.004
	0.2	1.63 ± 0.03	0.039 ± 0.002	1.92 ± 0.02	0.051 ± 0.002
	0.3	2.19 ± 0.05	0.053 ± 0.003	1.93 ± 0.01	0.051 ± 0.002
	0.4	2.35 ± 0.07	0.056 ± 0.002	1.89 ± 0.04	0.05 ± 0.004
$c_{\text{Nacl}}$(mol/L)	0.5	2.49 ± 0.06	0.06 ± 0.001	2.84 ± 0.11	0.075 ± 0.005
	0.6	2.59 ± 0.03	0.062 ± 0.001	3.03 ± 0.09	0.08 ± 0.002
	0.8	2.7 ± 0.05	0.065 ± 0.001	3.25 ± 0.12	0.086 ± 0.002
	1	2.81 ± 0.04	0.067 ± 0.001	3.41 ± 0.08	0.09 ± 0.003