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Karya Ilmiah
Synthesis of Silver Nanoparticles using Gandaria Seeds Bioreductor
Catherina M. Bijang1, Nurani Hasanela1, Shielda N. Joris1, Eirene G. Fransina1, Tahril2,
Thamrin Azis3, & Ahmadin Tehuayo
The silver nanoparticles (NPP) are synthesized with the chemical reduction method by using a water extract
bioreductor of gandaria seed (Bouea macrophylla G.) which acts as a reducing precursor, in this case, AgNO3 Ag+
is reduced to AgO. The concentration of AgNO3 is made between 0.5 mm and 1 mm. The characteristic of NPP
is unstable, so a modification is needed with and without the addition of PVA 1%. The process of NPP shaping
was monitored by observing the uptaken of UV-Vis when the color changes occur. The high NPP concentration
of AgNO3 has higher absorbance and is wider if compared to the lower AgNO3 concentration. The result of this
research based on the absorbance value and the wavelength showed the NPP synthesized without the addition of
PVA 1% (b/v) is wider. The addition of PVA 1% (b/v) provides better stability and maintains the absorbance
of spectrum changes from day to day. The maximum uptaken of UV-Vis from NPP AgNO3 0.5 mm by using
green synthesis and 1 mm without adding PVA are 0.946 and 0.980, respectively. However, NPP with the
addition of PVA has 0.968 and 0.978 absorbance. The best concentration of NPP produced was 1 mm AgNO3.
Keywords: Gandaria, silver nanoparticles, bioreductor
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File Lampiran dalam Bentuk PDF Diterbitkan pada: Jurnal Akademika Kimia, 12(2): 142-148, May 2023
ISSN (online) 2477-5185 | ISSN (print) 2302-6030
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