Discoloration of a Basic Dye on Wool Fibers Coated with Nano-ZrO2 under UV Irradiation

The present research carried out to stabilize nano-zirconium dioxide on a wool fabric using citric acid as a crosslinking agent and sodium hypophosphite as a catalyst under UV irradiation. The influence of the amount of nano-ZrO2 on the performance of wool fiber was investigated using Fourier transform infrared spectrophotometer (FTIR)، scanning electron microscope (SEM)، energy dispersive X-ray microanalysis (EDX)، water contact angle test (WCA) and reflectance spectrophotometer (RS). The possible interactions between nano-zirconia particles، cross-linking agent and wool free radicals were elucidated by the FTIR spectroscopy. Results indicated that the stabilized nano-zirconia is capable for discoloration of methylene blue on wool under UV irradiation. J. Color Sci. Tech. 7 (2013)، 1-13© Institute for Color Science and Technology.