ADSORPTION PROPERTIES OF TITANIA-SILICA MEMBRANES OBTAINED ON CERAMIC SUBSTRАTE
https://doi.org/10.29235/1561-8331-2018-54-3-274-280
Abstract
Titania-silica membranes on a porous quartz substrate are prepared by its direct contact with metal silicate sol at various Ti/Si ratios in the conditions of coagel sedimentation and presence of cetylpyridinium chloride. The study of textural and adsorption properties of membranes is conducted by low-temperature nitrogen adsorption-desorption, including methods of t-plots and DFT theory. It was shown that obtained membranes have mesoporous structure with the specific surface area and pore hydraulic diameter varied in intervals of 64–217 m2 /g and 4–11 nm, respectively. Developed values of surface area remain up to molar ratio of Ti/Si = 50/50.
Keywords
About the Authors
T. F. KouznetsovaBelarus
Tatsiana F. Kuznetsova – Ph. D. (Chemistry), Associate Professor, Senior researcher
9/1, Surganov Str., 220072, Minsk, . E-mail: kouzn@igic.bas-net.by
A. I. Ivanets
Belarus
Andrey I. Ivanets - Ph. D. (Chemistry), Associate Professor, Head of the Laboratory
9/1, Surganov Str., 220072, Minsk
J. D. Sauka
Belarus
Yustyna D. Savka – Junior researcher
9/1, Surganov Str., 220072, Minsk
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