BIOSINTESIS NANOPARTIKEL PERAK DENGAN MEMANFAATKAN GAMBIR SEBAGAI BIOREDUKTOR
Abstract: Biosynthesis of
silver nanoparticle using
chemical reduction method
from extract gambir
leaves (Uncaria Gambir Roxb)
has been done
successfully. In this
process, there were
two methods used: precipitation and
hydrothermal with two
various stabilizer, polyvinyl
alcohol (PVA) and
diethanol amine (DEA). UV-Vis
analysis showed that
DEA as stabilizer
was more effective
producing silver nanoparticle in
smaller particle size
than using PVA
and without stabilizer
based on the
stability of colloid. XRD
analysis using hydrothermal
method demonstrated peaks
of silver which
was suitable with the standard
peaks of silver. Silver’s crystallinity by using DEA was better than without stabilizer. In
addition, synthesis using
hydrothermal method produced
smaller crystals than precipitation method. Analysis TEM
showed that Ag particle size using DEA (25 nm) with anisotropic shape was smaller
than without using stabilizer (70 nm) with spherical shape.
Penulis: Vivi Gustia, Syukri
Arief, Diana Vanda Wellia
Kode Jurnal: jpkimiadd150281
