Conventional and Microwave-Hydrothermal Synthesis of TiO<sub><nobr>2</nobr></sub> Nanopowders期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Conventional and Microwave-Hydrothermal Synthesis of TiO₂ Nanopowders

Authors:	Anna Bonamartini Corradi Federica Bondioli Bonaventura Focher Anna Maria Ferrari Carmen Grippo Emilia Mariani Carla Villa

Affiliation:	Dipartimento di Ingegneria dei Materiali e dell'Ambiente, Universitàdi Modena e Reggio Emilia, Modena, Italy; Dipartimento di Scienze e Metodi dell'Ingegneria, Universitàdi Modena e Reggio Emilia, Reggio Emilia, Italy; Dipartimento di Scienze Farmaceutiche, Universitàdi Genova, Genova, Italy

Abstract:	The objective of this study was to compare the conventional and microwave hydrothermal treatment of TiOCl₂ 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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