Synthesis and Characterization of Inorganic Pigment Nanoparticles for Textile Coloration Using Microwave Techniques

Coloration of cotton fabric in one step via in situ deposition of manganese oxide or cobalt oxide nanoparticles, using microwave techniques, was performed. The structure and surface morphology of the obtained nanoparticles were studied by x-ray diffraction analysis and transmission electron microscopy (TEM). The cobalt oxide nanoparticles had a nanotube-like shape, with a length of 100–200 nm and a diameter of ∼58 nm, whereas manganese oxide nanoparticles had a linear structure of nanorods with a diameter of 50–55 nm and a length of 70-80 nm. Treated cotton fabrics were characterized by scanning electron microscopy (SEM) and the amount of nanoparticles deposited was quantitatively analyzed by SEM coupled with high energy dispersive x-ray (XRD) analysis. The fastness properties of dyed cotton fabrics containing these nanoparticles were evaluated.