HYDROTHERMAL SYNTHESIS OF Mn-DOPED ZnO NANO MATERIAL WITH ENHENCEMENT PHOTOCATALYTIC ACTIVITY UNDER VISIBLE LIGHT

Abstract

Mn doped ZnO (Mn-ZnO) material has been synthesized by a hydrothermal method. Its characterization and properties investigated using X-ray diffraction analysis (XRD), Fourier-tranform infrared spectroscopy (FT-IR), UV-Vis diffuse reflectance spectroscopy (UV-VIS), energy-dispersive xray (EDX), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM).The XRD, XPS and UV-VIS results proved the successful doping of Mn2+ ions in the host ZnO. Mn doping induce the band gap decrease and thus significantly enhance the absorption of ZnO in the range of visiblelight. As a results, the Mn-ZnO nanomaterials exhibited higher photocatalytic activity under visible light irradiation compared with undoped ZnO nanomaterials.