FT-IR and FT-Raman spectroscopic investigations of adsorption of 2,2 '-biquinoline by smectite group clay minerals from Anatolia

Akyuz S., Akyuz T., Davies J.

VIBRATIONAL SPECTROSCOPY, vol.22, pp.11-17, 2000 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 22
  • Publication Date: 2000
  • Doi Number: 10.1016/s0924-2031(99)00058-2
  • Journal Name: VIBRATIONAL SPECTROSCOPY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.11-17
  • Istanbul University Affiliated: No

Abstract

The sorption of 2,2'-biquinoline onto natural and ion-exchanged montmorillonite (Fe-, Co- or Cu-montmorillonite) and saponite from Anatolia have been investigated using FT-IR and FT-Raman Spectrometry. The intercalation of 2,2'-biquinoline within natural and ion-exchanged montmorillonite and saponite has been shown by X-ray diffraction to increase the interlayer spacing, The difference of basal spacing of air-dried clays and biquinoline treated ones shows monolayer arrangement. Raman spectroscopy was particularly useful for investigation of clay-organic interaction. Vibrational spectroscopy indicates that intercalated 2,2'-biquinoline molecules are coordinated to exchangeable cations (directly and indirectly through water bridges) and/or Lewis acid sites or as bidentate ligand. (C) 2000 Elsevier Science B.V. All rights reserved.