engleski

AFM study of the microsructure of amorphous aluminosilicate precursor (gel) during its hydrothermal transformation

Solid phase (gel) separated from freshly prepared sodium aluminosilicate hydrogel and the samples obtained during its hydrothermal treatment at 353 K was analyzed by different methods such as powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Differential thermal gravimetry (DTG), High-resolution transmission electron microscopy (HR-TEM) and Atomic force microscopy (AFM). Analysis of the obtained results have shown that the freshly prepared gel is mainly composed of disc-shaped primary particles, but also of partially or even fully crystalline entities that act as nuclei for the further crystallization of zeolite.

AFM; Microstructure; Amorphous aluminosilicate; Hydrothermal transformation; Zeolite

nije evidentirano