A VIBRATIONAL SPECTROSCOPIC STUDY OF THE OXIDATION OF PYRITE BY MOLECULAR OXYGEN

dc.contributor.author	Borda M.J.
dc.contributor.author	Strongin D.R.
dc.contributor.author	Schoonen M.A.
dc.date.accessioned	2022-03-23T07:44:02Z
dc.date.available	2022-03-23T07:44:02Z
dc.date.issued	2004
dc.identifier	https://www.elibrary.ru/item.asp?id=12090603
dc.identifier.citation	Geochimica et Cosmochimica Acta, 2004, 68, 8, 1807-1813
dc.identifier.issn	0016-7037
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/36546
dc.description.abstract	In situ flow-through attenuated total reflectance (ATR) Fourier transform infrared (FTIR) spectroscopy has been used to investigate the formation, and step-wise oxidation, of sulfoxyanions at the pyrite surface during oxidation by molecular oxygen. The surface was studied under two different pH regimes (pH 2.5 and pH 5.6) and under two light conditions (dark and ultraviolet light). It was experimentally observed that multiple sulfoxyanions were present at the pyrite surface during oxidation by molecular oxygen, spectroscopically illustrating the concept of sulfur step-wise oxidation. The results from photochemical experiments were complex and suggest a dependence on both pH and surface speciation.
dc.subject	pyrite
dc.title	A VIBRATIONAL SPECTROSCOPIC STUDY OF THE OXIDATION OF PYRITE BY MOLECULAR OXYGEN
dc.type	Статья

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