In situ functionalization of ZnO nanoparticles for enhancing UV-light fastness and antibacterial activity of natural dye-colored batik fabric

Natural dye-colored batik fabric has attracted extensive attention due to their unique color and environmentally friendly. However, natural dyed batik fabric has weaknesses, it is an ideal medium for microbial growth especially bacteria, and the natural dyes is easily become dull. This study purposes to provide functionalization on natural dyed batik fabric using ZnO nanoparticles (ZnONPs) synthesized from Electric Arc Furnace Dust (EAFD) waste to provide antibacterial properties and UV-light fastness. In situ functionalization was conducted using EAFD-containing nitric acid with a concentration of 0.1 M; pH 9 and temperature of 70°C, 80°C and 90°C. The nanoparticles formed and treated batik fabric were tested using FESEM and XRD to observe the morphology and size of the nanoparticles, respectively. Antibacterial properties and UV-Light fastness were tested using the agar diffusion method and UV lamp-photoreactor, respectively. Based on the characterization using FESEM and XRD showed that ZnO nanoparticles were successfully synthesized and imparted to natural dyed batik fabric. Natural dyed batik fabric applied by ZnO nanoparticles at 70°C showed better antibacterial properties and UV-Light fastness than that applied at 80°C and 90°C. © 2024 Author(s).