The infrared analysis of the prepared ASAC was performed
by using an IR spectrophometer of FT Bomen–Michelson type.
The IR spectrum was obtained by grinding 2mg of the ASAC
sample with 98mg of spectroscopic KBr. The mixture was
pressed at elevated pressure into a small disc of 1 cm in
diameter and 2mm in thickness. To study the morphology
of the prepared ASAC before and after adsorption of the CR
molecules, scanning electron micrographs were taken with
different resolutions by using a scanning electron microscope
(SEM, JOEL-5910).