Hello sir,

Please see below previous RG discussion:-

https://www.google.com/amp/s/www.researchgate.net/post/What_is_the_difference_between_bentonite_and_smectite_as_Clay_Minerals/amp

https://www.google.com/amp/s/www.researchgate.net/post/What_are_the_difference_between_Na-montmorillonite_or_Sodium_Montmorillonite_with_K10_Montmorillonite/amp

This article will be helpful for your study (d001 Na-MMT), please check:

https://link.springer.com/article/10.1007/s40820-016-0086-4

Thank you madam Nirmla devi