Band Gap Energies of Magnesium Oxide Nanomaterials Synthesized by the Sol-Gel Method

Nurhanna Badar; Nor Fadilah Chayed; Rusdi Roshidah; Norashikin Kamarudin; Norlida Kamarulzaman

doi:10.4028/www.scientific.net/AMR.545.157

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 545Band Gap Energies of Magnesium Oxide Nanomaterials...

Band Gap Energies of Magnesium Oxide Nanomaterials Synthesized by the Sol-Gel Method

Abstract:

In this work, the band gap energies of magnesium oxide (MgO) were investigated to see if calcination time affects the band gap energies of the MgO. MgO nanomaterials have been prepared by a sol-gel method. MgO precursors produced were calcined at a temperature of 600 °C for 24 hours and 48 hours. The structural characterization of samples is achieved using X-Ray Diffraction (XRD) and the morphology as well as particle size of MgO were examined by Field Emission Scanning Electron Microscopy (FESEM). UV-Vis NIR spectroscopy was used to determine the band gap energies of the materials. From the results, the band gap energy of the MgO with a longer heating time exhibited a higher value.

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Periodical:

Advanced Materials Research (Volume 545)

Pages:

157-160

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.545.157

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Online since:

July 2012

Authors:

Nurhanna Badar, Nor Fadilah Chayed, Rusdi Roshidah, Norashikin Kamarudin, Norlida Kamarulzaman

Keywords:

Annealing Time, Bandgap, MgO, Sol-Gel (SG)

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