PEMBUATAN DAN KARAKTERISASI NANOPARTIKEL PERAK MENGGUNAKAN EKSTRAK KULIT BUAH NAGA MERAH SEBAGAI PENDEGRADASI METILEN BIRU

Abstract

This search has been done manufacture and characterization of silver nanoparticles using red dragon skin extract as a methylene blue degradation. This research was aims to synthesize nanoparticles using red dragon fruit peel extract characterized using a UV-Vis spectrophotometer and characterization using TEM and determining the degradation activity of methylene blue which was tested absorption using a UV-Vis spectrophotometer. Silver nanoparticles with a volume of 5 ml red dragon fruit peel extract and 35 ml silver solution (1:7). Synthesis of silver nanoparticles in red dragon fruit peel extract using a UV-Vis spectrophotometer which is produced an absorbance of 0,9878 a.u at a wavelength of 433 nm. Characterization using TEM was to produce a particle size of 10,17-18,15 nm with a particle structure of FCC. The degradation activity of methylene blue for the absorption test using UV-Vis spectrophotometer at a concentration of 25 ppm, 50 ppm dan 75 ppm in an optimal time of 8 hours resulted in degradation efficiency values of 99,64%, 99,17% and 99,27%.