Abstract
This paper reports the ZnO particles synthesis and characterization stabilized in poly-(diallyldimethylammonium chloride) polymer (ZnO-PDDA). By means of the TEM images, ZnO nanoparticles showed ellipsoid-shaped particles, with diameters ranging from 100–500 nm. The LbL method was utilized for the cotton fibers functionalization, using Ag and ZnO nanoparticles. The nano-hybrids incorporation through this method was carried out after a chemical modification in the cotton fabric surface. The functionalized cotton fibers characterization was performed and showed an excellent photocatalytic activity, degrading about 75 % of methylene blue (MB) in 8 h of sun exposure. The presence of one layer of Ag nanoparticles improved photocatalytic efficiency reasonably, completely degrading the MB dye in 4 h. Fabric washing tests showed that even after 15 consecutive-cycle washes, the particle detachment is minimal (about 0.1 ppm), so the LbL technique is a good alternative for the functionalization of new materials, including textile materials.
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