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Versatility of Laser Pyrolysis Applied to the Synthesis of TiO 2 Nanoparticles – Application to UV Attenuation
Author(s) -
Pig Bruno,
Maskrot Hicham,
Guyot Ferreol Véronique,
Leconte Yann,
Coste Servane,
Gervais Monique,
Pouget Thierry,
Reynaud Cécile,
Tranchant JeanFrançois,
HerlinBoime Nathalie
Publication year - 2008
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200700990
Subject(s) - anatase , pyrolysis , materials science , rutile , nanoparticle , doping , absorption (acoustics) , photocatalysis , titanium , chemical engineering , laser , nanotechnology , catalysis , optoelectronics , optics , chemistry , organic chemistry , composite material , metallurgy , physics , engineering
TiO 2 nanoparticles show interesting catalytic and optical properties and are therefore highly demanded for several applications. In this paper, we show that pure and N‐doped TiO 2 powders with an average diameter as low as 8 nm can be synthesized by laser pyrolysis, with the use of an aerosol of TTIP (titanium tetraisopropoxide) as the main precursor sensitized by C 2 H 4 . We demonstrate the possibility to control the anatase/rutile phase ratio over a large range, which was not achieved before, by tuning the experimental parameters. N‐doped particles have also been produced for the first time by this method by using a one‐step process through addition of NH 3 . First results illustrating the consequences in terms of UV absorption properties are also presented and correlated with the structural evolution and the presence of a doping element.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)