As can be observed, zeolite has a crystalline structure and the
observed peaks are related to the phases of TO4 (T = Si or Al) in
the structure of zeolite. Considering the results from the spectra
of X-ray scattering, the adaptation between the polyurethane and
zeolite peaks in the sample of polyurethane–zeolite and the
increase in the intensity of peaks corresponding to zeolite resulting
from the higher percent of zeolite in the samples of polyurethane–
zeolite, the presence of particles in the sample structure is
deduced. Reduction in d-spacing indicates the enfolded atomic layers
of crystals in zeolites and the flattened or sharpened peak
changes the spatial shape of crystals. The increase in the crystals
results in the increased intensity of the peak as well as its sharpness.
Consequently the broadened peak indicates the reduction in
the crystalline phases.