• Dr.Anjali Dasari
• Ms. C.Maheswari

: A chemical processing scheme is adopted to recover silver metal from waste radiographic films. The aqueous silver nitrate (1mM) obtained is synthesised to silver nanoparticles by green synthesis. The radiographic films were dissolved in 1N nitric acid (HNO3) solution for approximately 1 hour at 90°C to convert silver into silver nitrate AgNO3(aq). The aqueous silver ions were exposed to leaf broth of Psidium guajava as reductant which resulted the silver nanoparticles. The bio reduced silver nanoparticle are characterized by UV is spectrophotometer, Scanning electron microscope (SEM) and Transmission electron microscope (TEM). The observed peaks in UV a broad spectrum at 390 nm-450 nm wave length. Size of silver nanoparticles range 30 nm - 60 nm observed by TEM. The antibacterial activity of the synthesized silver nanoparticles were tested against E. coli and observed the average zone of inhibition of 20-30 mm.

radiographic films, silver nanoparticles, green technology, Psidium guajava, silver recovery

"Production Of AgNO3 From X-Ray Sheets And Plant Mediated Synthesis Of Silver Nanoparticles", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.487-494, May-2019, Available :http://www.jetir.org/papers/JETIR1905D71.pdf

"Production Of AgNO3 From X-Ray Sheets And Plant Mediated Synthesis Of Silver Nanoparticles", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp487-494, May-2019, Available at : http://www.jetir.org/papers/JETIR1905D71.pdf