Cd²⁺ Exchange for Na⁺ and K⁺ in the Interlayer of Montmorillonite: Experiment and Molecular Simulation

Table 1

Chemical composition of Mts and their chemical formula.

Chemical composition (%)	Na + Mt	Na + Mt after Cd^2+ exchange	K + Mt	K + Mt after Cd^2+ exchange
SiO2	68.00	62.56	65.38	66.33
Al2O3	15.43	14.60	15.16	15.23
Fe2O3	5.64	6.75	6.62	6.55
MgO	3.35	2.86	3.51	2.87
CaO	2.36	2.95	3.35	2.12
Na2O	1.70	0.00	0.24	0.00
K2O	0.00	0.00	4.73	2.04
CdO	0.00	9.48	0.00	3.66
Chemical formula	(); (); Si4O10(OH)4	(); (); Si4O10(OH)4	(); (); Si4O10(OH)4	(); (); Si4O10(OH)4