Advanced search
Start date
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Structural, morphological and optical investigation of beta-Ag2MoO4 microcrystals obtained with different polar solvents

Full text
Cunha, F. S. [1] ; Sczancoski, J. C. [2] ; Nogueira, I. C. [3] ; de Oliveira, V. G. [1] ; Lustosa, S. M. C. [1] ; Longo, E. [2] ; Cavalcante, L. S. [1]
Total Authors: 7
[1] PPQG DQ CCN Univ Estadual Piaui, BR-64002150 Teresina, PI - Brazil
[2] Univ Estadual Paulista, BR-14801907 Araraquara, SP - Brazil
[3] Inst Fed Maranhao, PPG Engn Mat, BR-65030005 Sao Luid, MA - Brazil
Total Affiliations: 3
Document type: Journal article
Source: CrystEngComm; v. 17, n. 43, p. 8207-8211, 2015.
Web of Science Citations: 11

This 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. (AU)

FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
Grantee:Elson Longo da Silva
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC