Conventional and Microwave‐Hydrothermal Synthesis of TiO <sub>2</sub> Nanopowders

Anna Bonamartini Corradi, Federica Bondioli, B. Focher, Anna María Ferrari, Carmen Grippo, E Mariani, Carla Villa

Journal of the American Ceramic Society · 2005 · 124 citations · 7 references

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Abstract

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.

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