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Conventional and Microwave‐Hydrothermal Synthesis of TiO 2 Nanopowders
Author(s) -
Corradi Anna Bonamartini,
Bondioli Federica,
Focher Bonaventura,
Ferrari Anna Maria,
Grippo Carmen,
Mariani Emilia,
Villa Carla
Publication year - 2005
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2005.00474.x
Subject(s) - crystallinity , hydrothermal circulation , materials science , microwave , transmission electron microscopy , hydrothermal synthesis , nanoparticle , chemical engineering , thermal stability , diffraction , thermal analysis , colloid , mineralogy , analytical chemistry (journal) , nanotechnology , thermal , chemistry , composite material , chromatography , optics , quantum mechanics , physics , engineering , meteorology
The objective of this study was to compare the conventional and microwave hydrothermal treatment of TiOCl 2 solutions. Colloidal titania suspensions were prepared by forced hydrolysis at 195°C for different times ranging from 1 to 32 h for the conventional synthesis and from 5 min to 1 h for the microwave ones. The effect of the microwave technology on both the synthesis conditions and titania nanoparticles properties has been evaluated. Particles morphology and crystallinity were studied by using transmission electron microscopy and X‐ray diffraction. The thermal and chemical stability of the obtained powders were determined by TG/DTA analysis.