Humidity adsorption kinetics of calix[4]arene derivatives measured using QCM technique

Okur S., Kuş M., Özel F., Aybek V., Yilmaz M.

Talanta, cilt.81, sa.1-2, ss.248-251, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 81 Sayı: 1-2
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.talanta.2009.11.065
  • Dergi Adı: Talanta
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.248-251
  • Anahtar Kelimeler: Calix[4]arene, Humidity sensor, Quartz crystal microbalance
  • Recep Tayyip Erdoğan Üniversitesi Adresli: Hayır

Özet

This study focuses on the characterization of sulphonated calix[4]arene derivative films coated on a quartz substrate with a thickness of 40 nm by spin coating method for humidity detection. The humidity adsorption kinetics of the sulphonated calix[4]arene films was investigated by quartz crystal microbalance (QCM) technique. The Langmuir model was used to determine the adsorption rates and Gibbs free energy for various relative humidities between 11% and 97%. Our reproducible experimental results show that suphonated calix[4]arene films have a great potential for humidity sensing applications at room temperature operations. © 2009 Elsevier B.V. All rights reserved.