Incorporation of ZnO/Ag-ZnO nanoparticles into a cotton fiber by the LbL method for Self-Cleaning applications

This paper reports the ZnO particles synthesis and characterization stabilized in poly-(diallyldimethylammonium chloride) polymer (ZnO-PDDA). By means of the TEM images, ZnO nanopar-ticles 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 incor-poration 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. (c) 2023 Elsevier B.V. All rights reserved.

Automated summary

This paper presents the synthesis and characterization of ZnO nanoparticles stabilized in poly-(diallyldimethylammonium chloride) polymer (ZnO-PDDA). The TEM images revealed ellipsoid-shaped ZnO nanoparticles with diameters ranging from 100-500 nm. The cotton fibers were functionalized using the LbL method with Ag and ZnO nanoparticles, resulting in excellent photocatalytic activity and minimal particle detachment after multiple washes.