1999 Fiscal Year Annual Research Report

環境浄化のための酸化チタン光触媒反応の基礎的研究

Research Project

Project/Area Number	09555268
Research Institution	The University of Tokyo
Principal Investigator	藤嶋昭東京大学, 大学院・工学系研究科, 教授 (30078307)
Co-Investigator(Kenkyū-buntansha)	橋本和仁東京大学, 先端科学技術研究センター, 教授 (00172859)
Keywords	環境浄化 / 酸化チタン / 光触媒 / 有害物質 / 吸収剤
Research Abstract	藤嶋らは、環境安全の問題の一つである、水および空気の清浄化に注目し、比較的少量の有害物質をターゲットとした場合、光触媒の適用は実用的観点から非常に有用であることを見い出した。また、吸着剤との組み合わせなどで多量の物質も対象とできるような発展も考えられる。その技術を確立することを最終目的とした。光触媒反応で通常の生活空間内に存在する微弱な紫外線のみを消費して、空気の清浄化や雑菌の除去。さらに空中窒素酸化物の固定化などの環境浄化機能を発現する、全く新しいタイプ建築材料を開発することが可能になる。この光インテリジェント建材と呼ぶ材料は、地球規模の環境問題から身近な院内感染問題を解決するものとして、社会へ与える影響は非常に大きいと予想されている。これらのことを踏まえた上で研究目的を遂行してきた。本年度の研究成果を下記に述べる。 1.反応機能を全貌を明らかにする。・反応ラジカル中間体および反応中間生成物の光触媒反応への寄与・表面吸着水および表面水酸基の影響・表面酸性度の影響 2.実用化可能なシステムの確立・高分子バインダーやセメント中に高活性酸化チタンを分散させる技術の確立・これからの材料の耐食性、対抗性評価・フィールドテストと実用性の評価

Research Products
(19 results)

All Other

All Publications (19 results)

[Publications] R.D.Sun: "Effect of ZnO Film Thicknesses on the Adhesive Strength of Electroless Cu Deposits"Chem.Lett.. 1999. 11-12 (1999)
[Publications] T.N.Rao: "Band-Edge Movements of Semiconducting Diamond in Aqueous Electrolyte Induced by Anoddic Surface treatment"J.Electrochem.Soc.. 146(2). 680-684 (1999)
[Publications] E.Popa: "Selective Electrochemical Detection of Dopamin in the Presence of Ascorbic Acid at Anodized Thin Film Electrodes"Electochem.Solid-State Lett.. 2(1). 49-51 (1999)
[Publications] T.Yano: "Electrochemical Behavior of Highly Conductive Boron-Doped Diamond Electrodes for Oxygen Reduction in Acid Solution"J.Electrochem.Soc.. 146(3). 1081-1087 (1999)
[Publications] Y.Einaga: "Photofunctional Vesicle Containing Prussian Blue and Azobenzene"J.Amer.Chem Soc.. 121(15). 3745-3750 (1999)
[Publications] A.Fujishima: "Interfacial Photochemistry : Fundamentals and Applications"Pure & Appl.Chem.. 70(11). 2177-2187 (1999)
[Publications] B.V.Sarada: "Electrochemical Characterization of Highly Boron-Doped Diamond Mictroelectrodes in Aqueous Electrolyte"J.Electrochem.Soc.. 146(4). 1469-1471 (1999)
[Publications] T.N.Rao: "Electrochemical Oxidation of NADH at Highly Boron-Doped Diamond Electrodes"Anal.Chem.. 71(13). 2506-2511 (1999)
[Publications] A.Manivannan: "Abrasive Stripping Voltammetry at Polycrystalline Diamond Electrodes"Chem.Lett.. 1999. 851-852 (1999)
[Publications] I.Yagi: "Electrochemical Selectivity for Redox Systems at Oxygen-Terminated Diamond Electrodes"J.Electroanal.Chem.. 473. 173-178 (1999)
[Publications] A.Fujishima: "Electroanalysis of Dopamine and NADH at Conductive Diamond Electrodes"J.Electroanal.Chem.. 473. 179-185 (1999)
[Publications] T.Tatsuma: "Remote Bleaching of Methylene Blue by UV-Irradiate TiO2 in the Gas Phase"J.Phys.Chem.B. 103(38). 8033-8035 (1999)
[Publications] B.V.Sarada: "Electrochemical Detection of Serotonin Using Conductive Diamond Electrodes"Chem.Lett.. 1999. 1213-1214 (1999)
[Publications] I.Yagi: "Contral of the Dyanamics of Photogenerated Cariers at the Boron-Doped Diamond/Electrolyte Interface by Variation of the Surface Termination"Electrochem.Solid-State Lett.. 2(9). 457-460 (1999)
[Publications] H.Notsu: "Introduction of Oxygen-Containing Functional Groups onto Diamond Electrode Surfaces by Oxygen Plasma and Anodic Polarization"Electrochem.Solid-State Lett.. 2(10). 522-524 (1999)
[Publications] M.Yanagisawa: "Surface Morphology and Electrochemical Properties Of Highly Boron-Doped Homoepitaxial Diamond Films"Diamond and Related Mater.. 8. 2059-2063 (1999)
[Publications] Y.Ohko: "Photocatalytic Reaction Kinetics on TiO2 Thin Films under Light-Limited and Mass Transport-Limited Conditions"Zeitschrift fur Physikalische Chemie. 213. 33-42 (1999)
[Publications] S.I.Matsushita: "Light Propagation in Composite Two-Dimensional Arrays of Polystyrene Spherical Particles"Langmuir. 16(2). 636-642 (2000)
[Publications] A.Fujishima: "TiO_2 Photocatalysis --Fundamenals and Applications--"Bkc Inc.. 176 (1999)

1999 Fiscal Year Annual Research Report

環境浄化のための酸化チタン光触媒反応の基礎的研究

Principal Investigator

藤嶋 昭 東京大学, 大学院・工学系研究科, 教授 (30078307)

Research Products

[Publications] R.D.Sun: "Effect of ZnO Film Thicknesses on the Adhesive Strength of Electroless Cu Deposits"Chem.Lett.. 1999. 11-12 (1999)

[Publications] T.N.Rao: "Band-Edge Movements of Semiconducting Diamond in Aqueous Electrolyte Induced by Anoddic Surface treatment"J.Electrochem.Soc.. 146(2). 680-684 (1999)

[Publications] E.Popa: "Selective Electrochemical Detection of Dopamin in the Presence of Ascorbic Acid at Anodized Thin Film Electrodes"Electochem.Solid-State Lett.. 2(1). 49-51 (1999)

[Publications] T.Yano: "Electrochemical Behavior of Highly Conductive Boron-Doped Diamond Electrodes for Oxygen Reduction in Acid Solution"J.Electrochem.Soc.. 146(3). 1081-1087 (1999)

[Publications] Y.Einaga: "Photofunctional Vesicle Containing Prussian Blue and Azobenzene"J.Amer.Chem Soc.. 121(15). 3745-3750 (1999)

[Publications] A.Fujishima: "Interfacial Photochemistry : Fundamentals and Applications"Pure & Appl.Chem.. 70(11). 2177-2187 (1999)

[Publications] B.V.Sarada: "Electrochemical Characterization of Highly Boron-Doped Diamond Mictroelectrodes in Aqueous Electrolyte"J.Electrochem.Soc.. 146(4). 1469-1471 (1999)

[Publications] T.N.Rao: "Electrochemical Oxidation of NADH at Highly Boron-Doped Diamond Electrodes"Anal.Chem.. 71(13). 2506-2511 (1999)

[Publications] A.Manivannan: "Abrasive Stripping Voltammetry at Polycrystalline Diamond Electrodes"Chem.Lett.. 1999. 851-852 (1999)

[Publications] I.Yagi: "Electrochemical Selectivity for Redox Systems at Oxygen-Terminated Diamond Electrodes"J.Electroanal.Chem.. 473. 173-178 (1999)

[Publications] A.Fujishima: "Electroanalysis of Dopamine and NADH at Conductive Diamond Electrodes"J.Electroanal.Chem.. 473. 179-185 (1999)

[Publications] T.Tatsuma: "Remote Bleaching of Methylene Blue by UV-Irradiate TiO2 in the Gas Phase"J.Phys.Chem.B. 103(38). 8033-8035 (1999)

[Publications] B.V.Sarada: "Electrochemical Detection of Serotonin Using Conductive Diamond Electrodes"Chem.Lett.. 1999. 1213-1214 (1999)

[Publications] I.Yagi: "Contral of the Dyanamics of Photogenerated Cariers at the Boron-Doped Diamond/Electrolyte Interface by Variation of the Surface Termination"Electrochem.Solid-State Lett.. 2(9). 457-460 (1999)

[Publications] H.Notsu: "Introduction of Oxygen-Containing Functional Groups onto Diamond Electrode Surfaces by Oxygen Plasma and Anodic Polarization"Electrochem.Solid-State Lett.. 2(10). 522-524 (1999)

[Publications] M.Yanagisawa: "Surface Morphology and Electrochemical Properties Of Highly Boron-Doped Homoepitaxial Diamond Films"Diamond and Related Mater.. 8. 2059-2063 (1999)

[Publications] Y.Ohko: "Photocatalytic Reaction Kinetics on TiO2 Thin Films under Light-Limited and Mass Transport-Limited Conditions"Zeitschrift fur Physikalische Chemie. 213. 33-42 (1999)

[Publications] S.I.Matsushita: "Light Propagation in Composite Two-Dimensional Arrays of Polystyrene Spherical Particles"Langmuir. 16(2). 636-642 (2000)

[Publications] A.Fujishima: "TiO_2 Photocatalysis --Fundamenals and Applications--"Bkc Inc.. 176 (1999)

藤嶋昭東京大学, 大学院・工学系研究科, 教授 (30078307)