2.6. Characterization
XRD were obtained using INEL, model EQUINOX3000, in order
to investigation the crystal size and phase of the nanomaterials.
Also microscopic investigation on fabric samples were carried out
using a Philips XL30 (Netherlands) scanning electron microscope
(SEM) equipped with Philips-EDAX/DX4 energy-dispersive spectroscope
(EDS).
In the CIELAB system, color is expressed in terms of CIE L*, a*
and b* values, where L* defines lightness, a* denotes the red-green