Adsorption of Thymol onto Natural Clays of Morocco: Kinetic and Isotherm Studies

Table 2

Vibration bands of the Rh-P and Rh-CTAB.

Vibration frequencies (cm^−1)		Functions
Rh-P	Rh-CTAB
—	3680	Stretching vibration of N–H groups
3439	3416	Stretching vibration of hydroxyl O–H
—	2927 and 2855	Symmetric and asymmetric stretching vibrations of C–H in CH2 and CH3
1632	1632	Vibration deformation of the H–OH water molecules
1446	1464	Vibrations due to the presence of carbonates and C–H deformation vibration of Rhassoul modified
1024	1024	Stretching vibration of silica Si–O–Si
884	880	Bending vibration (CO3) and Al2OH
676 and 468	672 and 471	Vibration deformation of Si–O–Si