Original title: Use of Water- And Ethanol-Modified Supercritical Carbon Dioxide for Direct Preparation of Crystalline Monolithic TiO2 Aerogels.
Authors: Cerhová, Marie ; Sajfrtová, Marie ; Matějová, L. ; Dřínek, Vladislav ; Daniš, E. ; Jandová, Věra
Document type: Papers
Conference/Event: International Conference on Chemical Technology /5./, Mikulov (CZ), 20170410
Year: 2017
Language: eng
Abstract: We studied a combination of supercritical CO2, water and ethanol for the preparation of crystalline and pure nanostructured TiO2 without any thermal processing. The effect of temperature (40-150 °C) and sequence on structural and textural properties was investigated at constant pressure of 30 MPa. The prepared aerogels were characterized with respect to the (micro)structural properties by Raman spectroscopy and X-ray diffraction. The textural properties such as specific surface area, content of mesoporous and volume of microporous were determined from nitrogen physisorption and skeletal density by helium pycnometry measurements.
Keywords: carbon dioxide; photocatalytic activity; titania aerogels
Host item entry: Book of Abstracts, ISBN 978-80-86238-62-3
Rights: This work is protected under the Copyright Act No. 121/2000 Coll.

Institution: Institute of Chemical Process Fundamentals AS ČR (web)
Original record: http://hdl.handle.net/11104/0277415

Permalink: http://www.nusl.cz/ntk/nusl-369637


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