Electrolytic Synthesis and Characterizations of Silver Nanopowder

TL;DR

This paper presents a rapid, eco-friendly electrolytic method for synthesizing silver nanoparticles with high crystallinity, characterized by various techniques, and demonstrates their effectiveness against bacteria, highlighting the importance of surface area in antimicrobial activity.

Contribution

Introduces a novel, cost-effective electrolytic synthesis method for silver nanoparticles suitable for large-scale production with detailed characterization and antibacterial testing.

Findings

Nanoparticles are 24 nm in size with high crystallinity.

The synthesis method is faster and more scalable than existing techniques.

Silver nanoparticles show effective antibacterial activity against E.coli and B. megaterium.

Abstract

This work reports a simple, novel, cost effective and eco-friendly electrolytic synthesis of silver nanoparticles using AgNO3 as metal precursor. The synthesis rate is much faster than other methods and this approach is suitable for large scale production. They are characterized by XRD, SEM and FT-IR techniques to analyze size, morphology and functional groups. XRD studies reveal a high degree of crystallinity and monophasic Ag nanoparticles. Their particle size is found to be 24 nm and specific surface area (SSA) is 24 m2/g. Analysis of Ag nanoparticles SSA reports that increasing their SSA improves their antibacterial actions. Microbiology assay founds that Ag nanoparticles are effective against E.coli and B.megaterium bacteria. SSA of bacteria analysis reveals that it plays a major role while reacting with antimicrobial agents.