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Issue 43, 2015
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Structural, morphological and optical investigation of β-Ag2MoO4 microcrystals obtained with different polar solvents

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Abstract

This communication reports the formation of beta-silver molybdate (β-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, β-Ag2MoO4 microcrystals exhibited a dependence of optical band gap energies (from 3.22 to 3.38 eV) on the intermediary energy levels.

Graphical abstract: Structural, morphological and optical investigation of β-Ag2MoO4 microcrystals obtained with different polar solvents

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Publication details

The article was received on 18 Aug 2015, accepted on 18 Sep 2015 and first published on 25 Sep 2015


Article type: Communication
DOI: 10.1039/C5CE01662B
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Citation: CrystEngComm, 2015,17, 8207-8211

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

    F. S. Cunha, J. C. Sczancoski, I. C. Nogueira, V. G. de Oliveira, S. M. C. Lustosa, E. Longo and L. S. Cavalcante, CrystEngComm, 2015, 17, 8207
    DOI: 10.1039/C5CE01662B

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