Crystallized Zn3(VO4)2: Synthesis, characterization and optical property

Well-crystallized zinc vanadium oxide Zn3(VO4)2 micro-particles were successfully synthesized by annealing Zn3(OH)2V2O7·nH2O at 600 °C for 10 h in N2 atmosphere. X-ray diffraction pattern of the sample is in agreement with the standard pattern of orthorhombic Zn3(VO4)2. Scanning electron microscopy (SEM) image reveals that the as-synthesized particles are about 2 μm in mean diameter. The structure and composition of the as-synthesized sample were further characterized by Fourier transform infrared spectra (FTIR), Raman spectrum, and X-ray photoelectron spectroscopy (XPS). Furthermore, the photoluminescence properties of the as-synthesized Zn3(VO4)2 were characterized via room temperature photoluminescence (PL) measurement, which exhibit excellent visible light emission ranging from 500 to 700 nm.