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Open AccessArticle

In-Line Measurement of Water Contents in Ethanol Using a Zeolite-Coated Quartz Crystal Microbalance

1
Department of Advanced Materials and Chemical Engineering, Kyungnam College of Information & Technology, Pusan 617-701, Korea
2
Department of Chemical Engineering, University of Hyogo, Himeji 671-2201, Japan
3
Department of Chemical Engineering, Dong-A University, Pusan 604-714, Korea
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: W. Rudolf Seitz
Sensors 2015, 15(10), 27273-27282; https://doi.org/10.3390/s151027273
Received: 5 September 2015 / Revised: 22 October 2015 / Accepted: 23 October 2015 / Published: 27 October 2015
(This article belongs to the Section Chemical Sensors)
A quartz crystal microbalance (QCM) was utilized to measure the water content in ethanol. For the improvement of measurement sensitivity, the QCM was modified by applying zeolite particles on the surface with poly(methyl methacrylate) (PMMA) binder. The measurement performance was examined with ethanol of 1% to 5% water content in circulation. The experimental results showed that the frequency drop of the QCM was related with the water content though there was some deviation. The sensitivity of the zeolite-coated QCM was sufficient to be implemented in water content determination, and a higher ratio of silicon to aluminum in the molecular structure of the zeolite gave better performance. The coated surface was inspected by microscopy to show the distribution of zeolite particles and PMMA spread. View Full-Text
Keywords: quartz crystal microbalance; ethanol dehydration; zeolite-coated sensor quartz crystal microbalance; ethanol dehydration; zeolite-coated sensor
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MDPI and ACS Style

Kim, B.C.; Yamamoto, T.; Kim, Y.H. In-Line Measurement of Water Contents in Ethanol Using a Zeolite-Coated Quartz Crystal Microbalance. Sensors 2015, 15, 27273-27282. https://doi.org/10.3390/s151027273

AMA Style

Kim BC, Yamamoto T, Kim YH. In-Line Measurement of Water Contents in Ethanol Using a Zeolite-Coated Quartz Crystal Microbalance. Sensors. 2015; 15(10):27273-27282. https://doi.org/10.3390/s151027273

Chicago/Turabian Style

Kim, Byoung C.; Yamamoto, Takuji; Kim, Young H. 2015. "In-Line Measurement of Water Contents in Ethanol Using a Zeolite-Coated Quartz Crystal Microbalance" Sensors 15, no. 10: 27273-27282. https://doi.org/10.3390/s151027273

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