Humidity adsorption kinetics of water soluble calix[4]arene derivatives measured using QCM technique
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- 作者：Salih Okur ; Mahmut Kuş ; Faruk Ö ; zel ; Mustafa Yı ; lmaz
- 关键词：Carboxylated calix[4]arene film ; Humidity sensor ; QCM ; Langmuir model
- 刊名：Sensors and Actuators B: Chemical
- 出版年：2010
- 出版时间：4 March 2010
- 年：2010
- 卷：145
- 期：1
- 页码：93-97
- 全文大小：689 K
文摘
We report on the optimization and characterization of water soluble calix[4]arene derivative as a humidity sensor based on quartz crystal microbalance technique. The moisture adsorption and desorption kinetics of calix[4]arene were investigated. The Langmuir model was used to determine the kinetic parameters such as adsorption, desorption rates and Gibbs free energy between relative humidity between 29 % and 78 % . Reproducible experimental results were obtained showing that water soluble calix[4]arene films have a great potential for humidity sensing applications at room temperature operations.