How the Solid/Liquid Ratio Affects the Cation Exchange Process and Porosity in the Case of Dioctahedral Smectite: Structural Analysis?

Table 6

Structural parameters of SWy-Ba and SWy-Ni complexes.

	%MLS	_excha.cat	L.Th (Å)
	54.3		12.2	0.5	1	1	12	9	8.49
	39.1		12.2	1	1	1	5
	3.25		12.2	0.1	0.4	0.5	5
			15.2	0.3	0.6
				0.3
	3.35		10	0	1	1	4
	52.36		12.2	0.8	1	1	12	9	7.12
	33.84		12.2	0.1	0.7	0.59	5
			15.2	0.1	0.3
				0.1
	12.30		12.2	0.4	0.5	0.5	5
			15.2	0.3	0.5
				0.3
	1.5		10	0	1	1	4
	59.44		12.65	0.5	1	1	12	9	7.43
	39.52		12.2	0.15	0.7	0.71	5
			15.2	0.1	0.3
				0.1
	1.04		10	0	1	1	4
	68.61		12.55	0.4	1	1	12	10	8.33
	30		12.2	0.1	0.7	0.72	5
			15.2	0.1	0.3
				0.1
	1.39		10	0	1	1	4
	65.21		12.65	0.7	1	1	12	10	6.84
	33.52		12.2	0.1	0.7	0.6	5
			15.2	0.1	0.3
				0.1
	1.27		10	0	1	1	4
	72.22		12.6	0.5	1	1	12	10	8.66
	25.48		12.2	0.1	0.7	0.7	5
			15.2	0.1	0.3
				0.1
	2.30		10	0	1	1	4
	70.47		12	0.1	0.3	0.3	8	7	4.37
			15	0.1	0.7
				0.1
	27.57		12.5	0.5	0.7	0.7	5
			15.5	0.8	0.3
				0.8
	1.96		10	0	1	1	5
	77.91		12.5	0.1	0.3	0.3	8	7	5.74
			15.5	0.1	0.7
				0.1
	20.38		12.5	0.6	0.6	0.65	5
			15.5	0.85	0.4
				0.85
	1.71		10	0	1	1	5
	76.45		12.5	0.1	0.3	0.3	8	7	3.39
			15.5	0.1	0.7
				0.1
	22.01		12.5	0.7	0.7	0.7	5
			15.5	0.9	0.3
				0.9
	1.54		10	0	1	1	5
	73.33		12.5	0.1	0.3	0.3	8	7	4.86
			15.5	0.1	0.7
				0.1
	24.59		12.5	0.68	0.82	0.8	5
			15.5	1	0.18
				1
	2.08		10	0	1	1	5
	82.77		12.5	0.1	0.3	0.2	8	7	6.09
			15.5	0.1	0.7
				0.1
	15.01		12.5	0.8	0.75	0.7	5
			15.5	1.1	0.25
				1.1
	2.22		10	0	1	1	5
	78.67		12.5	0.1	0.3	0.35	8	7	4.19
			15.5	0.1	0.7
				0.1
	19.20		12.5	1	0.8	0.75	5
			15.5	1.1	0.2
				1.1
	2.13		10	0	1	1	5

_excha.cat: layer type and the associated exchangeable cation; L.Th: layer thickness in Å. , , and are attributed to the layer hydration state. : the number of H₂O molecules per half-unit cell; : the position along the axis of the H₂O molecule is fixed to 9.5 Å and 11.3 Å - 13.9 Å for the and hydration states, respectively. The position of exchangeable cations per half-unit cell calculated along the axis is fixed to 8.30 Å, 9.50 Å, and 12.25 Å for the , , and hydration states, respectively [80]. : the number of exchangeable cation per half-unit cell is fixed to 0.33 (for Na⁺ cation) and 0.165 (for Ba²⁺ and Ni²⁺ cation), indicating full saturation of the cation exchange capacity (CEC).