Structural characteristics of organo-modified bentonites of different origin

Tabak A., Afsin B., Aygun S. F., Koksal E.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, cilt.87, sa.2, ss.375-381, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 87 Sayı: 2
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1007/s10973-006-7886-6
  • Dergi Adı: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.375-381
  • Anahtar Kelimeler: cetylpyridinium, hydration state, ion exchange, organo-bentonite, CATIONIC SURFACTANTS, CLAYS, REMOVAL, MONTMORILLONITES, COMPLEXES, SORPTION, WATER
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

Organobentonites were synthesized by treating Na-bentonites (Wyoming and Resadiye) with cetylpyridinium chloride (CPC) using ion exchange method. The difference in the basal spacing by 0.65 angstrom and a higher mass loss by 13.32% of organobentonite (Wyoming) in the temperature range 200-550 degrees C comparing with that of organobentonite (Resadiye) were in conformity with the CEC values of organobentonites. The HOH stretching and bending peaks of bentonites became sharper following the treatment with the organo-cation. The intensity decrease of the Al-OH band for organobentonite (Resadiye) and in particular, the significantly higher amount of m-cresol retained by the organobentonite of lower CEC than that by the organobentonite (Wyoming) indicate the influence of the CP cation on the adsorption process.