ZINGIBER OFFICINALE EXTRACT MEDIATED GREEN SYNTHESIS OF SILVER NANOPARTICLES AND THEIR INTENSIFIED CATALYTIC ACTIVITY

Abstract

The payoff to using plants and plant metabolic pathway over the other biotic process for silver nanoparticles (AgNPs) synthesis have excited researchers to search mechanism of Ag+ ion reduction to Ag0. Here we report an aqueous based simple route using ginger (Zingiber officinale) extract as capping and reducing agent which neither makes the need for high temperature nor toxic chemicals to produce spherical and well-distributed silver nanoparticles. The appearance of flavonoids, phenolic, and enzymatic functional group in the fabrication of AgNPs was investigated using the absorption spectroscopy and FT-IR. A various physiochemical set-up like pH, extract concentration, time and, the temperature varied for adjusting the shape and size of synthesized AgNPs and analyzed via absorption spectroscopy in the range of 250 to 700nm. For examining the size, shape and surface nature of synthesized nanoparticles (NPs) several characterization techniques such as absorption and photoluminescence (PL) spectroscopy, XRD, Fourier transformation infrared spectroscopy and, transmission electron microscope were used. In this study, we interpret the homogeneous catalytic activity of synthesized silver nanoparticles on methylene blue (MB) dye reduction and analyzed the percentage of reduced capacity using absorption spectroscopy in the range of 250 to 800 nm. In this study also comparative study with different methods using different parts of plants (leaf, peel), honey and, fructose and analyzed via absorption spectroscopy in the range of 250 700 nm.