Impact of Uniaxial Mechanical Perturbation on Structural Properties and Smectite Porosity Features: Ion Exchanger Efficiency and Adsorption Performance Fate

Table 4

The basic physical approximations adopted for the PSD analysis.

Technical side	Fundamental side
P0 is the vapor pressure of the bulk liquid nitrogen at the liquid nitrogen temperature (∼77 K)	Cylindrical pores shape
P is the equilibrium pressure of desorption at the liquid nitrogen temperature (∼77 K)	Cylindrical pores radius (r) approximatively half of its width
The volumes of micropores, mesopores, and macropores, including nanopores in one gram solid, are labelled, respectively, VMi, VMe, and VMa (all in mL/g)	Cylindrical mesopores with radii (r) corresponding to V values calculated from the corrected Kelvin equation using P/P0 values
Specific micromesopore volumes (V = VMi + VMe) is determined using the desorption data (at the relative equilibrium pressure P/P0)	Macropores do not affect the adsorptive properties [76]