“…This is in agreement with the standard spectra of zeolite X (JCPDS No. 01-089-8235) and since the ratio Si/Al used in this study is lower than 1.1, the obtained results confirm that the synthesis process produced successfully LSX zeolite [39] . The scanning electron microscopy (SEM) micrograph of crystalline phase is a useful technique that can identify the morphology and size of resulted crystals.…”