Synthesis of silver nanoparticles and their optical properties

Abstract

Silver nanoparticles have been synthesised by chemical reduction of silver nitrate solution by ethanol. The samples have been characterised by X-ray diffraction study. Transmission electron microscopy reveals the nanostructure of the particles produced. This study infers that the particles are mostly spherical in shape and the sizes are within 18 nm. The surface plasmon resonance peak in the UV-Vis absorption spectra shows maximum absorption at 422 nm. Fluorescence spectra of silver nanoparticles, which show an emission peak at 470 nm have also been studied.

One-pot synthesis of PVA-capped silver nanoparticles their characterization and biomedical application

“…polyvinyl pyrrolidone PVP) [18]. The synthesis of silver nanoparticles by chemical route controls particle size, particle shape and morphology [19]. Polyvinyl alcohol (PVA) is a bio-friendly polymer since it is water soluble and has extremely low cytotoxicity.…”

Plant-mediated synthesis of silver nanoparticles using parsley (Petroselinum crispum) leaf extract: spectral analysis of the particles and antibacterial study

“…Research on advanced nanomaterials of noble metals like silver has gained a lot of interest among scientists during the past decades due to their unique properties that originate from high number of surface atoms and their versatile utilities and innovative applications in various engineering fields like catalysis (Santos et al 2012), optical (Das et al 2010) and antimicrobial activity (Soo-Hwan et al 2011;Venkatesham et al 2014;El-Nour et al 2010), etc. Synthesis method of nanoparticles plays an important role in its technological advancement as it is the primary step to tune their physical, electronic, and optical properties of the synthesized nanoparticles by varying size, shape and surface chemistry (Wiley et al 2007;Sharma et al 2009;Naik et al 2002).…”

Copper nano-sol loaded woven fabrics: structure and color characterization

“…, O-CH 2 stretching at 973 cm −1 and benzenoid group (Das et al 2009) at 868 cm −1 are present by default. It will be seen that the absorption spectrum of treated p-c blended fabric samples does not show much of change (Fig.…”