Abstract
Transmission infrared spectra of different kaolinites were studied by curve fitting. These spectra generally exhibit four hydroxyl stretching bands. In this article we show that a fifth OH band (already identified in Raman and photoacoustic IR spectra of kaolinites) is also observed in transmission IR spectra of hydrothermal and authigenic kaolinites, which have a high degree of crystallinity. This additional band is weak or undetectable for kaolinites with a low degree of crystallinity.
| Original language | English |
|---|---|
| Pages (from-to) | 523-529 |
| Number of pages | 7 |
| Journal | Journal of Colloid and Interface Science |
| Volume | 212 |
| Issue number | 2 |
| DOIs | |
| State | Published - 15 Apr 1999 |
Keywords
- Band Z
- Hydroxyl-stretching bands
- Infrared spectra
- Kaolinite
- Raman spectra