Green Synthesis Nanopartikel Perak dari Limbah Fotografi dengan Menggunakan Ekstrak Kulit Buah Naga (Hylocereus undatus)

Abstract

Green synthesis of nanoparticle utilizing plant extract is developing technique recently. A relative cheap and non-hazardous substance is an advantageous for this. Regarding to the potency of dragon fruit (Hylocereus undatus), this research employed the extract of dragon fruit waste (skin) and also photography waste as sources for synthesis. Effect of preparation method was studied by varying reflux and aging method. Bioreductor of Hylocereus undatus was prepared by maceration of dried Hylocereus undatus skin. The extract was mixed with photograph wastewater followed by reflux and Aging method separately. The nanoparticle formation was measured by using UV-Vis Spectrophotometry and Particle Size Analyzer (PSA). The nanoparticle solution was tested for antioxidant activity by DPPH method. The result indicates that the extract of Hylocereus undatus is potential to be used as bioreductor in silver nanoparticle synthesis. The nanoparticles are found to have particle size in between 20-100nm. Nanoparticles are active antioxidant. The antioxidant activity of derived nanoparticles is influenced by method in that by reflux method the antioxidant activity is at around 88% while by Aging method the activity is 81.78%. Both values are higher compared to synthesis by using silver standard solution with the same methods.