Oxygen-Deficient Anatase Precipitated from High-Temperature Plasma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

Oxygen-Deficient Anatase Precipitated from High-Temperature Plasma

Authors:	Yoshikiyo Kato Hiroko Yokobayashi Atsuo Kasuya Masahiro Kagawa Masashi Kawasaki

Affiliation:	Department of Material and Biological Chemistry, Yamagata University, Yamagata 990–8560, Japan;Research Center for Higher Education, Tohoku University, Sendai 980–8576, Japan;Center for Interdisciplinary Research, Tohoku University, Sendai 980–8578, Japan;Institute for Materials Research, Tohoku University, Sendai 980–8577, Japan

Abstract:	Feeding atomized aqueous solutions containing TiCl₄ into an argon high-temperature inductively coupled plasma (ICP) resulted in the formation of mixtures of white and blue particles. The mixtures consisted of anatase and an extra phase of rutile. Adding oxygen to the ICP led to the production of a single phase of white anatase. The blue particles could be characterized as oxygen-deficient anatase. Electrophoretic mobility measurements indicated that Na+ participated in determining the surface potential of the mixtures. The oxygen defects may provide the adsorption sites to Na+.

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