Morphology and photoluminescence of BaMoO4 micro- andnano-crystals synthesized by coprecipitation method
(1. Institute of Nano Science and Nano Technology, University of Kashan, Kashan, P. O. Box. 87317-51167, Iran;
2. Nanotechnology and Advanced Materials Institute, Isfahan University of Technology,
Isfahan, P. O. Box 84156-83111, Iran;
3. Nuclear Fuel Cycle Research School, NSTRI, Tehran, P. O. Box 11365-8486, Iran)
2. Nanotechnology and Advanced Materials Institute, Isfahan University of Technology,
Isfahan, P. O. Box 84156-83111, Iran;
3. Nuclear Fuel Cycle Research School, NSTRI, Tehran, P. O. Box 11365-8486, Iran)
Abstract: Barium molybdate (BaMoO4) micro- and nano-crystals were synthesized by the coprecipitation method. Utilizing the water as the solvent provides octahedron-like nanostructures. These nano-crystals were structurally characterized by X-ray diffraction, energy dispersive X-ray micro-analysis, Fourier transform infrared spectra. The size and shape were observed by scanning electron microscopy. The optical properties were studies by ultraviolet-visible diffuse reflectance spectroscopy and photoluminescence measurements at room temperature. The effects of temperature, solvent, surfactant and barium source were considered to obtain a controlled shape. It is found that the morphology, particle size and phase of the final products are extremely affected by these parameters.
Key words: BaMoO4; microcrystals; nanocrystals; coprecipitation; photoluminescence