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

Salih Okur; Mahmut Kuş; Faruk Ozel; Vildan Aybek; Mustafa Yilmaz

doi:10.1016/j.talanta.2009.11.065

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

Talanta. 2010 Apr 15;81(1-2):248-51. doi: 10.1016/j.talanta.2009.11.065. Epub 2009 Dec 5.

Authors

Salih Okur¹, Mahmut Kuş, Faruk Ozel, Vildan Aybek, Mustafa Yilmaz

Affiliation

¹ Izmir Institute of Technology, Department of Physics, Urla, Izmir, Turkey. salihokur@iyte.edu.tr

PMID: 20188916
DOI: 10.1016/j.talanta.2009.11.065

Abstract

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.

Publication types

Research Support, Non-U.S. Gov't