Parkia speciosa as Reduction Agent in Green Synthesis Silver Nanoparticles

Abstract

Synthesis of nanoparticles based on plant extract as reduction agent has been discovered extensively due to its environmental friendly approach. In this work, a facile silver nanoparticles is synthesized via incorporation of silver nitrate aqueous solution with Parkia speciosa leaves extract. Centrifugation is introduces to improve the characteristics of nanoparticles. Chemical interactions have identified –OH stretching vibration, C=O and C=C, proving the presence of phenolic, terpenoid and flavonoid capped on silver nanoparticles. The TEM result demonstrates the silver nanoparticles had consistence spherical nanoparticles shape with average particles size (59.96 nm) in accordance with FESEM analysis. The structural analysis by XRD shows the nanoparticles had high degree of crystallinity (97%) and crystallite size (17.95 nm). The optical analysis by UV‐Vis reveals that the nanoparticle produces brown colour solution with high absorption band (465 nm). This proves that Parkia speciosa extract has potential as reduction agent in synthesis of silver nanoparticles.

Adsorptive behaviour of rutile phased titania nanoparticles supported on acid-modified kaolinite clay for the removal of selected heavy metal ions from mining wastewater

“…The result is indicative of the fact that Parkia biglobossa leaves can be used for the synthesis of the nanoparticles. The confirmed phytochemicals present are in agreement with the findings ofDedehou et al (2016) andYusof et al (2018).…”

Biosynthesis and Characterizations of Silver Nanoparticles from Annona squamosa Leaf and Fruit Extracts for Size-Dependent Biomedical Applications

“…A Shimadzu UV-1800 (Japan) UV-Vis spectroscopy model was employed, which provided us with graphical data shown in relation to wavelength (along the x-axis) and absorbance (along the y-axis). This analysis was used to confirm whether or not we have synthesized the required particles by providing information about the absorption peaks [32]. AgNPs differ from other NPs in that they exhibit a surface plasmon resonance effect [42], which occurs when light interacts with conduction electrons present on the exposed metal surface, resulting in collective electronic oscillations in response to specific light wavelengths [43].…”

“…A reduction process occurred when fruit and leaf extracts were added to the precursor solution, resulting in the creation of AgNPs [32]. Figure 3 depicts a schematic mechanism of AgNPs synthesis in which AgNO 3 was dissolved in deionized water with no color, boiled, and stirred on a hot plate at a boiling temperature prior to the addition of Annona squamosa leaf/fruit extract into the beaker.…”

Microwave-assisted green synthesis ofDesmodium triquetrum-mediated silver nanoparticles: enhanced antibacterial, antibiofilm, and cytotoxicity activities against human breast cancer cell lines

“…The spectrum of the AgNPs showed a reduction in intensity and slight shifts in the position of peaks indicating polyphenols as the main components in the extract assisting in the synthesis and encapsulating of silver nanoparticles. 55…”