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XPS investigation of titanium in melanites from Monte Vulture (Italy)

Cosimino Malitesta, Ilario Losito, Fernando Scordari and Emanuela Schingaro
XPS investigation of titanium in melanites from Monte Vulture (Italy)
European Journal of Mineralogy (August 1995) 7 (4): 847-858


X-ray photoelectron spectroscopy has been used to study the oxidation state and structural role of titanium in two melanites differing in TiO (sub 2) content ( approximately 3 and approximately 6 wt.%). The Ti2p-XPS spectra can be satisfactorily fitted when Ti (super 3+) is lodged on octahedral and Ti (super 4+) distributed over octahedral and tetrahedral sites. The XPS direct estimates of Ti site populations match well with those obtained indirectly from Moessbauer spectroscopy through the Fe distribution. In addition, there is good agreement between the Fe (super 2+) /Fe (super 3+) ratios estimated by both XPS and Moessbauer spectroscopy, using Fe (sub 3) O (sub 4) as a standard for interpreting Fe2p photoelectron spectra.

ISSN: 0935-1221
Serial Title: European Journal of Mineralogy
Serial Volume: 7
Serial Issue: 4
Title: XPS investigation of titanium in melanites from Monte Vulture (Italy)
Affiliation: Universita di Bari, Dipartimento di Chimica, Bari, Italy
Pages: 847-858
Published: 199508
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Federal Republic of Germany
References: 32
Accession Number: 1995-056100
Categories: Mineralogy of silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: 6 tables
N36°30'00" - N47°30'00", E06°30'00" - E19°00'00"
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United KingdomTwickenhamUKUnited Kingdom
Update Code: 199520
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