Influence of Water-Ethanol-Modified Supercritical Carbon Dioxide at the Preparation of Crystalline Monolithic TiO2 Aerogels.

0494070 - ÚCHP 2019 CZ eng C - Conference Paper (international conference)
Cerhová, Marie - Sajfrtová, Marie - Matějová, L. - Dřínek, Vladislav - Daniš, S. - Jandová, Věra
Influence of Water-Ethanol-Modified Supercritical Carbon Dioxide at the Preparation of Crystalline Monolithic TiO2 Aerogels.
Program. Prague: Czech Society of Chemical Engineering, 2018, s. 31, č. článku B6.7. ISBN N.
[International Congress of Chemical and Process Engineering CHISA 2018 /23./. Prague (CZ), 25.08.2018-29.08.2018]
Institutional support: RVO:67985858
Keywords : TiO2 aerogels * temperature * supercritical carbon dioxide
OECD category: Chemical process engineering

This work is focused on a study of TiO2 aerogel SFC with scCO2 modified by mixture of ethanol and water in a ratio 1:1. The effect of temperature (40-100 °C), pressure (10-30 MPa) and modifie concentration in scCO2 (5-15 wt.%) and the additional drying with pure CO2 on microstructure, purity and textural properties of TiO2 aerogel was investigated. Processed monoliths were characterized by XRD analysis, Raman spectroscopy and N2 physisorption.
Permanent Link: http://hdl.handle.net/11104/0287299