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Industrial Chemistry | ISSN: 2469-9764 | Volume 4
17
th
International Conference on
May 21-22, 2018 | New York, USA
Industrial Chemistry and Water Treatment
Ind Chem 2018, Volume 4
DOI: 10.4172/2469-9764-C1-009
Green synthesis of silver nanoparticles using
Moringa oleifera
fruit extract and its application to
the photocatalytic degradation of methylene blue
Jervee M Punzalan
and
A P J Juliani P Padaong
University of the Philippines Manila, Philippines
G
reen synthesis of stabilized silver nanoparticles (AgNPs) using aqueous extract of
Moringa oleifera
fruit is presented in
this study. The reduction of Ag+ to Ag0 was confirmed by the formation of reddish-brown solution and the appearance
of surface plasmon resonance band at around 400nm. The optimum conditions of the synthesized AgNPs were at 30% extract
concentration, pH10 and contact time of 7 days. Further, the stable AgNPs were characterized using UV-Vis spectroscopy,
Fourier-Transform Infra-Red (FTIR) spectroscopy and Transmission Electron microscopy (TEM) analysis. TEM images
revealed that the average diameter of the synthesized AgNPs was 31.3±13.7nm. Photocatalytic degradation of methylene blue
was measured spectrophotometrically by using silver as nanocatalyst under visible light, UV light and solar irradiation. Results
showed that the biosynthesized AgNPs were found to be notable in degrading methylene blue under solar irradiation of nearly
40% decolorization at 6 hour of exposure time.
jerveegv@yahoo.com