Open AccessOptimization of precursor concentration and timing of stirring in the formation of silver nanoparticles with and without polyvinyl alcohol (PVA)
Author(s) -
R. Z. Maarebia,
Yorinda Buyang,
Evy Nurvitasari,
Novike Bela Sumanik
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/343/1/012245
Subject(s) - absorbance , polyvinyl alcohol , silver nanoparticle , nanoparticle , materials science , stabilizer (aeronautics) , nuclear chemistry , metal , alcohol , reducing agent , chemical engineering , chemistry , nanotechnology , chromatography , organic chemistry , composite material , mechanical engineering , engineering , metallurgy
The biosynthesis of silver nanoparticles using plants as reducing agents has been reported. In this study used plant extracts Myrmecodia pendans which function as reducing agents and AgNO3 as metal precursors. Silver nanoparticles were successfully synthesized by using plant extracts of Myrmecodia pendans by doing them on variations in concentration and stirring time. In this case a variation of 0.5 mM is used; 1mM; 1.5 mM; 2 mM; and 2.5 mM and the time variation used was 120 minutes and 150 minutes. Analysis using UV-Vis spectrophotometer to determine silver nanoparticles formed in a wavelength range of 400-500 nm. From the results of the study, it was obtained that the concentration of 1 mM with 120 minutes stirring time was the best concentration and the time of formation of silver nanoparticles without stabilizer with absorbance of 2.125 at a wavelength of 408 nm and at a concentration of 2.5 mM with 120 minutes stirring time was the best concentration and stirring time formation of silver nanoparticles with a stabilizer at a wavelength of 413.5 nm with absorbance of 2,636.