Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/8811
Title: Use, preparation, and characterization of copper-containing silica gel
Authors: Ulutan, Sevgi
Tüzüm Demir, Ayşe Pınar
Balköse, Devrim
Publisher: American Chemical Society
Abstract: The preparation and characterization of humidity-indicating silica gel containing copper sulfate were aimed at in the present study. The equilibrium and kinetics of Cu(II) sorption were investigated by contacting 200-1600 mg dm(-3) Cu ion-containing solutions with silica hydrogel slabs having 10% silica. The diffusion coefficient of Cu(II) in silica hydrogel was determined to be on the order of 10(-10) m(2) s(-1). X-ray diffraction indicated that the gels contained mainly CuSO4 center dot 3H(2)O, CuSO4 center dot H2O, and small amounts of CuSO4 and CuSiO3 center dot 2H(2)O. The silica gel with Cu(II) can be used as a humidity indicator since its color changes from light blue to dark blue upon moisture adsorption.
URI: https://doi.org/10.1021/acs.iecr.9b06950
https://hdl.handle.net/11147/8811
ISSN: 0888-5885
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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