SINTESIS NANOPARTIKEL PERAK MENGGUNAKAN EKSTRAK DAUN JABON PUTIH (Anthocephalus cadamba Miq.)
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Date
2023-12
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Elfitra
Abstract
Biosynthesis is one of the synthesis methods that used plants as reductor. The
secondary metabolite compund in plants can be used as bioreductor fo synthesize
silver nanoparticles. The purpose of this research was to synthesize silver
nanoparticles using jabon putih leaf extract (Anthocephalus cadamba Miq.) using
biosynthesis method. The extract was obtained from maseration method by
mixing 5 g jabon putih leaves with 250 mL Aqua demineralized. After that, silver
nanoparticles was synthesized with biosynthesis method that accompanied with
variation of pH and AgNO3 solution’s concetration. The pH was variated in 3, 5,
7, 9, and 11 and AgNO3 solution’s concetration was variated in 0.1 mM, 1 mM,
and 10 mM. the formed silver nanoparticles were analyzed using UV-Vis
Spectrophotometry and Fourier Transform Infra Red (FTIR). The result of this
research are showed in UV-Vis and FTIR’s Spectra. UV-Vis spectra analysis
showed the existence of an optimum stable absorbance peak at wavelength of 431
nm with the absorbance of 1.331. This result was further supported by FTIR
spectra, which shows the presence of the O-H group, a functional group that
reduce Ag+ ions into Ag0. The best conditions to synthesize silver nanoparticles in
this research were found to be at pH 3 with a concentration of AgNO3 solution of
1 mM.
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Keywords
biosynthesis, jabon putih leaf extract, silver nanoparticles