Adsorption of 3-and 4-aminopyridine on loughlinite-An IR spectroscopic study

AKYÜZ S., Akyuz T.

VIBRATIONAL SPECTROSCOPY, cilt.53, sa.1, ss.136-139, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 53 Sayı: 1
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.vibspec.2010.01.007
  • Dergi Adı: VIBRATIONAL SPECTROSCOPY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.136-139
  • İstanbul Kültür Üniversitesi Adresli: Evet

Özet

In this study adsorption of 3- and 4-aminopyridine on loughlinite (Na-sepiolite) have been investigated by FT-IR spectroscopy. Spectroscopic results indicate that sorbed aminopyridine molecules onto loughlinite are coordinated to Lewis acidic centers, zeolitic/bound water molecules, and surface silanol groups by hydrogen bonding interaction through pyridine ring nitrogen lone pairs. Some of the adsorbed molecules coordinate to Bronsted acidic centers and aminopyridinium cationic surface species are also generated. (C) 2010 Elsevier B.V. All rights reserved.