Cunha, F. S.Sczancoski, J. C. [UNESP]Nogueira, I. C.Oliveira, V. G. deLustosa, S. M. C.Longo, E. [UNESP]Cavalcante, L. S.2018-11-272018-11-272015-01-01Crystengcomm. Cambridge: Royal Soc Chemistry, v. 17, n. 43, p. 8207-8211, 2015.1466-8033http://hdl.handle.net/11449/164958This communication reports the formation of beta-silver molybdate (beta-Ag2MoO4) microcrystals synthesized by a simple precipitation method using different polar solvents (water, methanol, ethanol, 1-propanol and 1-butanol). These crystals were structurally characterized by means of X-ray diffraction (XRD) and Rietveld refinement. The crystal shapes and sizes were observed by field emission scanning electron microscopy (FE-SEM). Their optical properties were analyzed by ultraviolet-visible (UV-vis) diffuse reflectance spectroscopy. XRD patterns and Rietveld refinement data indicated all crystals have a spinel-type cubic structure. FE-SEM images revealed the crystals tend to increase the average size with reduction in the degree of polarity of the solvent. Finally, beta-Ag2MoO4 microcrystals exhibited a dependence of optical band gap energies (from 3.22 to 3.38 eV) on the intermediary energy levels.8207-8211engArtigo10.1039/c5ce01662bWOS:000364323300004Acesso restrito