Physics

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Browsing Physics by Author "Aflinaldi, M. Rizki"

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    PEMBUATAN ELEKTRODA KARBON BERBASIS BIOMASSA AKAR ILALANG DENGAN PENGAKTIFAN KIMIA GANDA
    (Elfitra, 2023-04) Aflinaldi, M. Rizki; Farma, Rakhmawati
    ZnO nanoparticles have been prepared through a biosynthetic method using microwave method with the addition of sulfur doping with percentage variations of 1 and 2%. Sulfur doping ZnO particles in the form of flakes from synthesis were characterized using UV-Vis spectroscopy and x-ray diffraction (XRD). The UV-Vis absorption spectrum shows absorption peaks in the UV region of 300-400 nm with bandgap energy ranging from 3.04-3.08 eV. XRD analysis exhibit the crystal size is in the range of 33 nm. The emerging plane peaks in the 30-80° angle range confirm wurtzite-shaped crystals with high purity of ZnO particles.