• Katla Shivani
• Dr. P. Ranjith Reddy

Silver-doped ZnO (Ag-ZnO) nanoparticles were synthesized via the sol-gel method using polyvinylpyrrolidone (PVP) as a stabilizer to achieve uniform nanoscale morphology. Ag incorporation enhanced photocatalytic activity under visible light by promoting electron-hole separation and extending light absorption. Structural, morphological, and optical properties were confirmed through XRD, UV-Vis, and FTIR analyses. Photocatalytic performance was evaluated using methylene orange (MO) dye under visible irradiation, where Ag-ZnO achieved over 90% degradation within 90 minutes, surpassing pure ZnO. The improved efficiency arises from the synergistic effects of Ag doping and PVP capping, demonstrating the potential of Ag-Zno nanomaterials for efficient photocatalytic wastewater treatment.

Ag-ZnO nanoparticles, Sol-gel method, Polyvinylpyrrolidone (PVP), Photocatalysis, Visible light degradation, Methylene orange (MO), Environmental remediation.

"Synthesis And Characterization Of Ag-Doped ZnO Nanoparticles For Photocatalytic Activity", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 9, page no.c236-c240, September-2025, Available :http://www.jetir.org/papers/JETIR2509229.pdf

"Synthesis And Characterization Of Ag-Doped ZnO Nanoparticles For Photocatalytic Activity", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 9, page no. ppc236-c240, September-2025, Available at : http://www.jetir.org/papers/JETIR2509229.pdf