Enhancement of UV-Light Fastness and Antibacterial Activity of Natural Dye-Colored Batik Fabric by ZnO Nanoparticles-In Situ Functionalization Synthesized from Electric Arc Furnace Dust Waste 1Centre for Craft and Batik, Ministry of Industry, Jl. Kusumanegara No. 7 Yogyakarta 55166, Indonesia Abstract Natural dye-colored batik fabric has attracted extensive attention due to their unique color and environmental friendliness. However, natural dye-colored batik fabric has weaknesses, including the color is easy to dull and easy to grow bacteria. This study aims to provide functionalization on natural dye-colored batik fabric using ZnO nanoparticles (ZnONP) synthesized from Electric Arc Furnace Dust (EAFD) waste to provide antibacterial properties and UV-light fastness. In situ functionalization was carried out using EAFD-containing nitric acid with a concentration of 0.1 M- pH 9 and temperature of 70oC, 80oC and 90oC. The nanoparticles formed and treated batik fabric were characterized 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 dye-colored batik fabric. Natural dye-colored batik fabric applied by ZnO nanoparticles at 70oC showed better antibacterial properties and UV-Light fastness than that applied at 80oC and 90oC. Keywords: ZnO nanoparticles, Batik fabric, Antibacterial, UV-Light fastness, In situ, Natural dye Topic: Advanced material engineering |
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