Spectroscopic study of gamma-irradiated Mongolian natural quartz
Автор: Tuvjargal N., Baatarkhuu D., Ochirkhuyag T., Davaasambuu J., Zuzaan P.
Журнал: Вестник Бурятского государственного университета. Химия. Физика @vestnik-bsu-chemistry-physics
Статья в выпуске: 2-3, 2016 года.
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In this work we performed a spectroscopic characterization of natural quartz samples from Mongolia. These materials were examined by X-ray powder diffraction (XRD), UV-visible spectroscopy (UV-vis) and electron paramagnetic resonance (EPR). Samples were used in this study in as-received, gamma- irradiated and heat-treated conditions. The color formation in natural quartz through this procedure is explained based on XRD, EPR, and UV-VIS studies of gamma irradiated and heat-treated samples. Smoky quartz shows absorption bands in the visible region and a strong EPR signal. After heat-treatment it shows absorption bands in the near UV region with extensions into the visible region and a weak EPR signal.
Quartz, heat treatment, spectroscopy, electron paramagnetic resonance, uv-visible spectroscopy, powder diffraction
Короткий адрес: https://sciup.org/148317760
IDR: 148317760 | DOI: 10.18101/2306-2363-2016-2-3-26-34
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