Comparative Fourier Transform Infrared Investigation of Oltu-Stone (Natural Carbon Black) and Jet
SPECTROSCOPY LETTERS, vol.47, no.3, pp.161-167, 2014 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 47 Issue: 3
- Publication Date: 2014
- Doi Number: 10.1080/00387010.2013.785435
- Journal Name: SPECTROSCOPY LETTERS
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.161-167
- Keywords: FT-IR, jet, natural Turkish carbon black, Oltu-stone, turbostratic carbon
- Dokuz Eylül University Affiliated: Yes
Abstract
Fourier transform infrared (FT-IR) investigation of Oltu-stone (natural carbon black) and jet revealed several differences between these carbonaceous materials. The band peaking at about 1000cm(-1) is the first important difference: while the band in the jet spectra appears as one sharp peak at about 1001cm(-1), the similar band in the Oltu-stone spectra is shifted to about 1026cm(-1) with a broad shoulder toward high frequency. Even though the assignment of the shifted band is at present controversial, it may be attributed to carbon-oxygen stretching mode. Second, the doublet bands at about 2912 and 2843cm(-1) are much more intense in the jet spectra then in the Oltu-stone spectra. They are confidently attributed to aliphatic C-H stretching mode. Finally, the broad water band on setting at about 3750cm(-1) is maturated in Oltu-stone, and it is much more evident than in that of jet. Therefore, FT-IR appears as a favorable identification method for these kinds of carbonaceous materials.