Physical stabilization of anatase (TiO2) by freeze-drying
- 1 January 1997
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry
- Vol. 7 (6) , 855-856
- https://doi.org/10.1039/a701755c
Abstract
The anatase phase of titania has been stabilized without chemically modifying the system, by changing the level of packing within the aggregates by freeze-drying the water-washed precipitate obtained by the hydrolysis of titanium isopropoxide. After calcination at 700 °C for 8 h, freeze-dried samples showed more than 97% anatase phase with a surface area and porosity of 29 m 2 g -1 and 37% respectively. The oven-dried samples showed a surface area and porosity of 5 m 2 g -1 and 10% respectively.Keywords
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