Title: A Non-Aqueous Synthesis of TiO2/SiO2 Composites in Supercritical CO2 for the Photodegradation of Pollutants
Authors: Jammaer, Jasper ×
Aprile, Carmela
Verbruggen, Sammy
Lenaerts, Silvia
Pescarmona, Paolo
Martens, Johan #
Issue Date: 2011
Publisher: Wiley - V C H Verlag GmbH & Co. KGaA
Series Title: ChemSusChem: Chemistry & Sustainability, Energy & Materials vol:4 issue:10 pages:1457-1463
Abstract: Titania/silica composites with different Ti/Si ratios are synthesized via a nonconventional synthesis route. The synthesis involves non-aqueous reaction of metal alkoxides and formic acid at 75 degrees C in supercritical carbon dioxide. The as-prepared composite materials contain nanometer-sized anatase crystallites and amorphous silica. Large specific surface areas are obtained. The composites are evaluated in the photocatalytic degradation of phenol in aqueous medium, and in the elimination of acetaldehyde from air. The highest photocatalytic activity in both processes is achieved with a composite containing 40 wt% TiO2.
ISSN: 1864-5631
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

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