New water-soluble complexes of titanium with amino acids and their application for synthesis of TiO_2 nanoparticles

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概要

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• We prepared two new water-soluble complexes of titanium with L-serine and L(-)-threonine amino acids. It was demonstrated that these compounds can be outstanding precursors for a hydrothermal synthesis of nanocrystalline TiO_2. The obtained powders were composed of anatase or a mixture of anatase and brookite. Particles diameters were 〜10 nm and BET surface areas were 〜120 m^2/g. The powder composed of anatase and brookite synthesized by hydrothermal treatment of the titanium-threonine complex aqueous solution at 200℃ for 24 h exhibited higher photocatalytic activity for oxalic acid oxidation than the commercial anatase-type TiO_2 photocatalyst (ST-01, Ishihara Sangyo Kaisya, average diameter: 7 nm, specific surface area: 257.5 m^2/g).

• 社団法人日本セラミックス協会の論文
• 2008-04-01

著者

• TOMITA Koji

  Department of Physics, Kyushu University

• PETRYKIN Valery

  東北大学多元物質科学研究所

• PETRYKIN Valery

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• Tomita Koji

  Department Of Physics Kyushu University

• Petrykin Valery

  Institute Of Multidisciplinary Research For Advanced Materials Tohoku University

• KAKIHANA Masato

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• Kakihana Masato

  Institute Of Multidisciplinary Research For Advanced Materials Tohoku University

• KOBAYASHI Makoto

  Institute of Basic Medical Sciences, Graduate School of Comprehensive Human Sciences, University of

• Kakihana Masato

  Inst. Of Multidisciplinary Res. For Advanced Materials Tohoku Univ.

• PETRYKIN Valery

  J. Heyrovsky Institute of Physical Chemistry

• Kobayashi Makoto

  Institute Of Basic Medical Sciences Graduate School Of Comprehensive Human Sciences University Of Tsukuba

• Tomita Koji

  Department of Chemistry, School of Science, Tokai University

• TOMITA Koji

  Department of Chemistry School of Science, Tokai University

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