Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/5090
Title: Characterization and dehydration behavior of a natural, ammonium hydroxide, and thermally treated zeolitic tuff
Authors: Narin, Güler
Balköse, Devrim
Ülkü, Semra
Keywords: Ammonium hydroxide treatment
Characterization
Clinoptilolite
Dehydration
DRIFTS
Fourier transform infrared spectroscopy
Issue Date: Apr-2011
Publisher: Taylor and Francis Ltd.
Source: Narin, G., Balköse, D., and Ülkü, S. (2011). Characterization and dehydration behavior of a natural, ammonium hydroxide, and thermally treated zeolitic tuff. Drying Technology, 29(5), 553-565 . doi:10.1080/07373937.2010.507913
Abstract: Aqueous NH4OH-treated and subsequently calcined forms of local natural zeolitic tuff were characterized by different techniques including scanning electron microscopy (SEM), X-ray powder diffraction, inductively coupled plasma-atomic emission spectroscopy (ICP-AES), volumetric N2 adsorption at -196°C, thermogravimetry (TG), differential scanning calorimetry (DSC), and transmittance infrared spectroscopy. The dehydration behavior of the samples was investigated using an in situ temperature-programmed diffuse reflectance Fourier transform infrared spectroscopy (TP-DRIFTS) method under vacuum. The DRIFTS spectra recorded yielded information about the effect of the NH4OH treatment and subsequent calcination on the dehydration behavior of the natural zeolite.Changes in the infrared bands corresponding to vibrations of the O-H and N-H bonds upon in situ heating under vacuum were analyzed.
URI: https://doi.org/10.1080/07373937.2010.507913
http://hdl.handle.net/11147/5090
ISSN: 0737-3937
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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