Citation
Ja. Ayllon et al., Preparation of anatase powders from fluorine-complexed titanium(IV) aqueous solution using microwave irradiation, J MAT CHEM, 10(8), 2000, pp. 1911-1914
Citations number
25
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS CHEMISTRY
ISSN journal
09599428
→ ACNP
Volume
10
Issue
8
Year of publication
2000
Pages
1911 - 1914
Database
ISI
SICI code
0959-9428(2000)10:8<1911:POAPFF>2.0.ZU;2-R
Abstract
The microwave radiation activated precipitation of titanium dioxide from ho
mogeneous aqueous solutions of titanium-fluoro complexes and boric acid has
been carried out in batch reactors. Crystalline anatase powders with narro
w monodisperse size distribution have been obtained in a short time, at low
temperature and atmospheric pressure. Microwave power, irradiation time an
d precursor concentration determine the properties of the obtained material
s, i.e. crystal size, powder aggregate morphology and BET surface area. The
obtained materials do not show photocatalytic activity, probably due to a
considerable fluoride content that is in the range of 2-5%.