TY - JOUR
T1 - Rapid microwave-hydrothermal synthesis of anatase form of titanium dioxide
AU - Baldassari, Sara
AU - Komarneni, Sridhar
AU - Mariani, Emilia
AU - Villa, Carla
PY - 2005/11
Y1 - 2005/11
N2 - Pure anatase titanium dioxide was synthesized by a microwave (MW)-assisted hydrolysis of diluted acidic solutions of titanium tetrachloride. MW irradiation combined with hydrothermal process has proved to be a very efficient and fast alternative to conventional hydrothermal technique, as an almost complete crystallization of anatase occurred in reaction times as short as 30 min. The addition of small amounts of sulfuric acid was necessary to obtain a pure anatase phase, as the presence of sulfate prevented the crystallization of trace amounts of brookite. Transmission electron micrographs showed nanoparticles arranged in spherical aggregates with 1% sulfuric acid, while less aggregated nanoparticles were obtained with 0.1% sulfuric acid.
AB - Pure anatase titanium dioxide was synthesized by a microwave (MW)-assisted hydrolysis of diluted acidic solutions of titanium tetrachloride. MW irradiation combined with hydrothermal process has proved to be a very efficient and fast alternative to conventional hydrothermal technique, as an almost complete crystallization of anatase occurred in reaction times as short as 30 min. The addition of small amounts of sulfuric acid was necessary to obtain a pure anatase phase, as the presence of sulfate prevented the crystallization of trace amounts of brookite. Transmission electron micrographs showed nanoparticles arranged in spherical aggregates with 1% sulfuric acid, while less aggregated nanoparticles were obtained with 0.1% sulfuric acid.
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U2 - 10.1111/j.1551-2916.2005.00562.x
DO - 10.1111/j.1551-2916.2005.00562.x
M3 - Article
AN - SCOPUS:33745420084
SN - 0002-7820
VL - 88
SP - 3238
EP - 3240
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 11
ER -