Green synthesis and characterization of α-MnO nanoparticles for antibacterial activity and efficient visible-light photocatalysis.

In this study, green synthesis, characterizations, photocatalytic performance, and antibacterial applications of α-MnO nanoparticles are reported. The synthesized nanoparticles were characterized by Fourier transform infrared spectroscopy (FT-IR), powder X-ray diffraction (XRD), transmission electron microscope (TEM), Scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), Brunauer Emmett Teller (BET), Electrochemical Impedance Spectroscopy (EIS), Photoluminescence (PL), and Differential reflectance spectroscopy (DRS) analysis. The investigation verified that the α-MnO nanoparticles possessed a cubic structure, with a crystallite size of 23 nm.