Katoh, Masahiro The University of Tokushima Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Koide, Ryuhei The University of Tokushima
Yamada, Kenzo The University of Tokushima
Yoshida, Takanori The University of Tokushima
Horikawa, Toshihide The University of Tokushima Tokushima University Educator and Researcher Directory KAKEN Search Researchers
IR Spectroscopic Analysis
In this study, we measured the IR spectra of water adsorbed at a differential temperature under constant pressure. Our purpose is to present a simple estimation method for the recycled temperature condition of water adsorbents. For a NaY zeolite, the IR integrated intensity of the bending vibration band of adsorbed water was increased with a decrease of temperature. The IR spectra were measured from 230℃ to 30℃ for several ion-exchanged Y-type zeolites. On the other hand, the adsorption isotherms of water on these zeolites were measured at 30℃. The result of this work is that the best correlation between the IR integrated intensity and the amount of adsorbed water was found for some of the zeolites. We concluded that the obtained correlation equation could easily estimate the amount of water desorbed between arbitrary temperatures.
International Journal of Modern Physics: Conference Series
This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CCBY)(https://creativecommons.org/licenses/by/4.0/).
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ijmpcs_6_437.pdf 310 KB
Science and Technology