Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/1997
Title: The effect of HCl treatment on water vapor adsorption characteristics of clinoptilolite rich natural zeolite
Authors: Çakıcıoğlu Özkan, Fehime
Ülkü, Semra
Keywords: Acid treatment
Adsorption
Clinoptilolite
Dealumination
Water vapor
Zeolites
Publisher: Elsevier Ltd.
Source: Çakıcıoğlu Özkan, S.F., and Ülkü, S. (2005). The effect of HCl treatment on water vapor adsorption characteristics of clinoptilolite rich natural zeolite. Microporous and Mesoporous Materials, 77(1), 47-53. doi:10.1016/j.micromeso.2004.08.013
Abstract: In this study, water vapor adsorption properties of the clinoptilolite rich zeolite tuff, from Bigadic (Turkey), and its modified forms were examined. The modified forms were obtained by treating the tuff with HCl solutions (0.032, 0.16, 0.32, 1.6 or 5 M) at 25,40,75 and 100°C for 3 h. Infrared spectroscppy and water vapor adsorption were used for the characterization of the zeolites. Langmuir, BET and Dubinin-Raduschevich methods were applied in the analysis of water vapor adsorption data. Applications of Dubinin Raduschevich equation to the water adsorption data displayed that the super-micropore volume was not very sensitive to acid treatment. It was found out that the Langmuir surface area and ultra-micropore volume depend on the degree of the removal of aluminum from the structure.
URI: https://doi.org/10.1016/j.micromeso.2004.08.013
http://hdl.handle.net/11147/1997
ISSN: 1387-1811
1387-1811
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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