 Morinda tinctoria leaf extract was used to reduce silver ions into silver nanoparticles, which were then characterized by UVV spectrophotometry, SEM, XRD, EDX, and FDIR. The photocatalytic activity of the synth-sized silver nanoparticles was also tested against methylene blue under sunlight irradiation. This article was authored by M. Venager, K. Paul Kumar, M. Barbaraja, and others.