2003 年度実績報告書

太陽光下の水環境系における光機能界面での活性酸素の生成と計測

研究課題

研究課題/領域番号	15033221
研究機関	東京工業大学
研究代表者	大坂武男東京工業大学, 大学院・総合理工学研究科, 教授 (80152099)
研究分担者	岡島武義東京工業大学, 大学院・総合理工学研究科, 助手 (70194347)
キーワード	光機能界面 / 活性酸素 / 過酸化水素 / 酸素 / スーパーオキシドイオン / 電気化学測定 / 光触媒 / 過酢酸
研究概要	本研究は、自然界の太陽光下水環境系での光機能界面モデルとして,光照射下の空気・水溶液界相を設定し,この界相での活性酸素の生成の検証及びそのための新たな検出法の開発を目的として行われ、次の成果を得た。 1.H_2O_2は窒素雰囲気下では生成せず,酸素雰囲気下で生成し,その生成速度はpHに依存し、クロモフォアとして機能する腐植酸(humic acid、HA)の濃度が高いほどH_2O_2の生成速度は大きい。また、H_2O_2の生成速度は照射する光の波長に大きく依存し,同じエネルギーの光を照射した場合,可視光に比べて紫外光を照射した場合にH_2O_2の生成速度ははるかに大きく、光量とともにH_2O_2の生成量は増加することを明らかにした。 2.昨年度開発したO_2^-センサを用いて,O_2^-の生成を確認した。 3.海水の標準化学組成からなる水溶液においては,クロモフォア(HA、フェノールなど)が存在しないとH_2O_2は生成しないことを明らかにし、さらに海水を用いてH_2O_2の生成を確認した。 4.redox-potential bufferとしてl^-/l_3^-レドックス系を用いて,H_2O_2、過酢酸などの過酸化物の定量を可能にする新たな検出装置の開発に成功し,その商品化をすすめた。この検出装置は各種水溶液中の過酸化物,酸化剤の定量分析に使用できることを明らかにした。

研究成果
(38件)

すべてその他

すべて文献書誌 (38件)

[文献書誌] S.Kishioka: "Electrochemical Studies of Acid - Promoted Disproportionation of Nitroxyl Radical"Electrochim.Acta. 48. 1589-1594 (2003)
[文献書誌] P.R.Roy: "Simultaneous Electroanalysis of Dopamine and Ascorbic Acid Using Poly(N,N-dimethylanine)-Modified Electrodes"Bioelectrochemistry. 59. 11-19 (2003)
[文献書誌] M.I.Awad: "Kinetic Studies of the Oxidation of Iodide by Peroxyacetic Acid"Inorg.Chim.Acta. 344. 253-256 (2003)
[文献書誌] F.Matsumoto: "Electrogeneration of Superoxide Ion and Its Mechanism at Thiol-Modified Au Electrode in Alkaline Aqueous Solution"Electrochemistry. 71. 266-273 (2003)
[文献書誌] D.Zhang: "Hydrodynamic Chronocoulometric Estimation of Diffusion Coefficients and Saturated Concentrations of Dioxygen in KOH Solutions"Indian J.Chem.(A). 42. 801-806 (2003)
[文献書誌] M.S.El-Deab: "Quasi-Reversible Two-Electron Reduction of Oxygen at Gold Electrodes Modified with a Self-Assembled Submonolayer of Cysteine"Electrochem.Commun.. 5. 214-219 (2003)
[文献書誌] M.S.Saha: "A New Method for the Preparation of Peroxyacetic Acid Using Solid Superacid Catalysts"Tetrahedron Lett.. 44. 5535-5537 (2003)
[文献書誌] M.S.El-Deab: "Electrocatalysis by Nanoparticles : Oxygen Reduction on Gold Nanoparticles-Electrodeposited Platinum Electrodes"J.Electroanal.Chem.. 553. 107-115 (2003)
[文献書誌] M.S.Saha: "Synthesis of Peroxyacetic Acid Using in situ Electrogenerated Hydrogen Peroxide on Gas Diffusion Electrode"Electrochem.Commun.. 5. 445-448 (2003)
[文献書誌] M.I.Awad: "Simultaneous Potentiometric Determination of Peroxyacetic Acid and Hydrogen Peroxide"Anal.Chem.. 75. 2688-2693 (2003)
[文献書誌] M.I.Awad: "Potentiometric Analysis of Peroxyacetic Acid in the Presence of a Large Excess of Hydrogen Peroxide"J.Electroanal.Chem.. 544. 35-40 (2003)
[文献書誌] K.Arihara: "Multiple Voltammetric Waves for Reductive Desorption of Cysteine and 4-Mercaptobenzoic Acid Monolayers Self-Assembled on Gold Substrates"Phys.Chem.Chem.Phys.. 5. 3758-3761 (2003)
[文献書誌] M.S.El-Deab: "Electrochemical Reduction of Oxygen on Gold Nanoparticles-electrodeposited Glassy Carbon Electrodes"J.Electrochem.Soc.. 150. A851-A857 (2003)
[文献書誌] C.R.Raj: "Gold Nano-Particle Arrays for the Voltammetric Sensing of Dopamine"J.Electroanal.Chem.. 543. 127-133 (2003)
[文献書誌] L.Mao: "Mechanistic Study of the Reduction of Oxygen in Air Electrode with Manganese Oxides as Electrocatalysts"Electrochim.Acta. 48. 1015-1021 (2003)
[文献書誌] C.R.Raj: "Voltammetric Detection of Uric Acid in the Presence of Ascorbic Acid at a Gold Electrode Modified with a Self-assembled Monolayer of Heteroaromatic Thiol"J.Electroanal.Chem.. 540. 69-77 (2003)
[文献書誌] T.Okajima: "Chemiluminescence of Lucigenin by Electrogenerated Superoxide Ions in Aqueous Solution"Luminescence. 18. 49-57 (2003)
[文献書誌] R.Wang: "Cyclic and Normal Puls Voltammetric Studies of 2,3,6,7,10,11-Hexaphenyl-Rexazatriphenylene Using a Benzonitrile Thin Layer-Coated Glassy Carbon Electrode"J.Phys.Chem.B. 107. 9452-9458 (2003)
[文献書誌] F.Matsumoto: "Enhancement of Electrochemical Reduction of Hydrogen Peroxide and Observation of Current Oscillatory phenomena during its Reduction on a Mercury Adatom-modified Au electrode"J.Electroanal.Chem.. 549. 71-80 (2003)
[文献書誌] L.Mao: "A Novel Electrochemical Strategy for Developing Alkaline Air Electrodes by a Combined Use of Dual Functional Catalysts"Chem.Commun.. 2003. 2818-2819 (2003)
[文献書誌] F.Matsumoto: "Electrochemical Reduction of Molecular Oxygen on Hg Adatom-Modified Au Electrodes in Organic Media Containing a Small amount of Water"Electrochemistry. 71. 927-932 (2003)
[文献書誌] R.Wang: "Electrochemical Behavior of Conjugated Quinoxaline Derivatives"J.Electroanal.Chem.. (in press). (2004)
[文献書誌] R.Wang: "Catalytic Reduction of O_2 by Pyrazine Derivative"J.Phys.Chem.A. (in press). (2004)
[文献書誌] M.S.El-Deab: "Molecular-Level Design of Binary Self-Assembled Monolayers on Polycrystalline Gold Electrodes"Electrochim.Acta. 49. 2189-2194 (2004)
[文献書誌] T.Ohsaka: "Bifunctional Catalytic Activity of Manganese Oxide toward O_2 Reduction-Novel Insight into the Mechanism of Alkaline Air Electrode"Electrochem.Commun.. 6. 273-277 (2004)
[文献書誌] P.R.Roy: "Selective Detection of Dopamine and Its Metabolite, DOPAC, in the Presence of Ascorbic Acid Using Diamond Electrode Modified by the Polymer Film"Electroanalysis. (in press). (2004)
[文献書誌] M.S.Saha: "Electrolytic Synthesis of Peroxyacetic Acid Using in situ Generated Hydrogen Peroxide on Gas Diffusion Electrodes"J.Electrochem.Soc.. (in press). (2004)
[文献書誌] L.Mao: "A Novel Alkaline Air Electrode Based on a Combined Use of Cobalt Hexadecafluoro-phthalocyanine and Manganese Oxide"Electrochim.Acta. (in press). (2004)
[文献書誌] R.Wang: "A Novel Amperometric O_2 Gas Sensor Based on Supported Room-Temperature Ionic Liquid Porous Polyethylene Membrane-coated Electrodes"Electroanalysis. 16. 66-72 (2004)
[文献書誌] R.Wang: "O_2 Gas Sensor Using Supported Hydrophobic Room- Temperature Ionic Liquid Membrane- coated Electrode"Chem. Lett.. 33. 6-7 (2004)
[文献書誌] T.Oritani: "Electrochemical and Spectroscopic Studies on Electron-Transfer Reaction between Novel Water-Soluble Tetrazolimu Salts and a Superoxide Ion"Inorg.Chim.Acta. 357. 436-442 (2004)
[文献書誌] P.R.Roy: "Simultaneous Electrochemical Detection of Uric Acid and Ascorbic Acid at Poly (N,N-Dimethylaniline) Film-Coated GC Electrode"J.Electroanal.Chem.. 561. 75-82 (2004)
[文献書誌] D.Zhang: "Electro-reduction of Dioxygen in 1-n- Alkyl-3-methylimidazolium Tetrafluoroborate Room-temperature Ionic Liquids"J.Electrochem.Soc.. (in press). (2004)
[文献書誌] M.S.El-Deab: "A Fabrication of Au(111) -like Polycrystalline Gold Electrodes and Their Applications to the Oxygen Reduction"J.Electrochem.Soc.. (in press). (2004)
[文献書誌] P.R.Roy: "Electrooxidation and Amperometric Detection of Ascorbic Acide at GC Electrode Modified by Electropolymerization of N,N-Dimethylaniline"Electroanalysis. (in press). (2004)
[文献書誌] T.Ohsaka(分担): "Metal Complexes and Metals in Macromolecules"Wiley-VCH. 667 (2003)
[文献書誌] 大坂武男(分担): "第3版高分子辞典"朝倉書店(印刷中). (2004)
[文献書誌] 大坂武男(分担): "新訂版・表面科学基礎と応用"(株)エヌ・ティー・エス(印刷中). (2004)

2003 年度 実績報告書

太陽光下の水環境系における光機能界面での活性酸素の生成と計測

研究代表者

大坂 武男 東京工業大学, 大学院・総合理工学研究科, 教授 (80152099)

研究成果

[文献書誌] S.Kishioka: "Electrochemical Studies of Acid - Promoted Disproportionation of Nitroxyl Radical"Electrochim.Acta. 48. 1589-1594 (2003)

[文献書誌] P.R.Roy: "Simultaneous Electroanalysis of Dopamine and Ascorbic Acid Using Poly(N,N-dimethylanine)-Modified Electrodes"Bioelectrochemistry. 59. 11-19 (2003)

[文献書誌] M.I.Awad: "Kinetic Studies of the Oxidation of Iodide by Peroxyacetic Acid"Inorg.Chim.Acta. 344. 253-256 (2003)

[文献書誌] F.Matsumoto: "Electrogeneration of Superoxide Ion and Its Mechanism at Thiol-Modified Au Electrode in Alkaline Aqueous Solution"Electrochemistry. 71. 266-273 (2003)

[文献書誌] D.Zhang: "Hydrodynamic Chronocoulometric Estimation of Diffusion Coefficients and Saturated Concentrations of Dioxygen in KOH Solutions"Indian J.Chem.(A). 42. 801-806 (2003)

[文献書誌] M.S.El-Deab: "Quasi-Reversible Two-Electron Reduction of Oxygen at Gold Electrodes Modified with a Self-Assembled Submonolayer of Cysteine"Electrochem.Commun.. 5. 214-219 (2003)

[文献書誌] M.S.Saha: "A New Method for the Preparation of Peroxyacetic Acid Using Solid Superacid Catalysts"Tetrahedron Lett.. 44. 5535-5537 (2003)

[文献書誌] M.S.El-Deab: "Electrocatalysis by Nanoparticles : Oxygen Reduction on Gold Nanoparticles-Electrodeposited Platinum Electrodes"J.Electroanal.Chem.. 553. 107-115 (2003)

[文献書誌] M.S.Saha: "Synthesis of Peroxyacetic Acid Using in situ Electrogenerated Hydrogen Peroxide on Gas Diffusion Electrode"Electrochem.Commun.. 5. 445-448 (2003)

[文献書誌] M.I.Awad: "Simultaneous Potentiometric Determination of Peroxyacetic Acid and Hydrogen Peroxide"Anal.Chem.. 75. 2688-2693 (2003)

[文献書誌] M.I.Awad: "Potentiometric Analysis of Peroxyacetic Acid in the Presence of a Large Excess of Hydrogen Peroxide"J.Electroanal.Chem.. 544. 35-40 (2003)

[文献書誌] K.Arihara: "Multiple Voltammetric Waves for Reductive Desorption of Cysteine and 4-Mercaptobenzoic Acid Monolayers Self-Assembled on Gold Substrates"Phys.Chem.Chem.Phys.. 5. 3758-3761 (2003)

[文献書誌] M.S.El-Deab: "Electrochemical Reduction of Oxygen on Gold Nanoparticles-electrodeposited Glassy Carbon Electrodes"J.Electrochem.Soc.. 150. A851-A857 (2003)

[文献書誌] C.R.Raj: "Gold Nano-Particle Arrays for the Voltammetric Sensing of Dopamine"J.Electroanal.Chem.. 543. 127-133 (2003)

[文献書誌] L.Mao: "Mechanistic Study of the Reduction of Oxygen in Air Electrode with Manganese Oxides as Electrocatalysts"Electrochim.Acta. 48. 1015-1021 (2003)

[文献書誌] C.R.Raj: "Voltammetric Detection of Uric Acid in the Presence of Ascorbic Acid at a Gold Electrode Modified with a Self-assembled Monolayer of Heteroaromatic Thiol"J.Electroanal.Chem.. 540. 69-77 (2003)

[文献書誌] T.Okajima: "Chemiluminescence of Lucigenin by Electrogenerated Superoxide Ions in Aqueous Solution"Luminescence. 18. 49-57 (2003)

[文献書誌] R.Wang: "Cyclic and Normal Puls Voltammetric Studies of 2,3,6,7,10,11-Hexaphenyl-Rexazatriphenylene Using a Benzonitrile Thin Layer-Coated Glassy Carbon Electrode"J.Phys.Chem.B. 107. 9452-9458 (2003)

[文献書誌] F.Matsumoto: "Enhancement of Electrochemical Reduction of Hydrogen Peroxide and Observation of Current Oscillatory phenomena during its Reduction on a Mercury Adatom-modified Au electrode"J.Electroanal.Chem.. 549. 71-80 (2003)

[文献書誌] L.Mao: "A Novel Electrochemical Strategy for Developing Alkaline Air Electrodes by a Combined Use of Dual Functional Catalysts"Chem.Commun.. 2003. 2818-2819 (2003)

[文献書誌] F.Matsumoto: "Electrochemical Reduction of Molecular Oxygen on Hg Adatom-Modified Au Electrodes in Organic Media Containing a Small amount of Water"Electrochemistry. 71. 927-932 (2003)

[文献書誌] R.Wang: "Electrochemical Behavior of Conjugated Quinoxaline Derivatives"J.Electroanal.Chem.. (in press). (2004)

[文献書誌] R.Wang: "Catalytic Reduction of O_2 by Pyrazine Derivative"J.Phys.Chem.A. (in press). (2004)

[文献書誌] M.S.El-Deab: "Molecular-Level Design of Binary Self-Assembled Monolayers on Polycrystalline Gold Electrodes"Electrochim.Acta. 49. 2189-2194 (2004)

[文献書誌] T.Ohsaka: "Bifunctional Catalytic Activity of Manganese Oxide toward O_2 Reduction-Novel Insight into the Mechanism of Alkaline Air Electrode"Electrochem.Commun.. 6. 273-277 (2004)

[文献書誌] P.R.Roy: "Selective Detection of Dopamine and Its Metabolite, DOPAC, in the Presence of Ascorbic Acid Using Diamond Electrode Modified by the Polymer Film"Electroanalysis. (in press). (2004)

[文献書誌] M.S.Saha: "Electrolytic Synthesis of Peroxyacetic Acid Using in situ Generated Hydrogen Peroxide on Gas Diffusion Electrodes"J.Electrochem.Soc.. (in press). (2004)

[文献書誌] L.Mao: "A Novel Alkaline Air Electrode Based on a Combined Use of Cobalt Hexadecafluoro-phthalocyanine and Manganese Oxide"Electrochim.Acta. (in press). (2004)

[文献書誌] R.Wang: "A Novel Amperometric O_2 Gas Sensor Based on Supported Room-Temperature Ionic Liquid Porous Polyethylene Membrane-coated Electrodes"Electroanalysis. 16. 66-72 (2004)

[文献書誌] R.Wang: "O_2 Gas Sensor Using Supported Hydrophobic Room- Temperature Ionic Liquid Membrane- coated Electrode"Chem. Lett.. 33. 6-7 (2004)

[文献書誌] T.Oritani: "Electrochemical and Spectroscopic Studies on Electron-Transfer Reaction between Novel Water-Soluble Tetrazolimu Salts and a Superoxide Ion"Inorg.Chim.Acta. 357. 436-442 (2004)

[文献書誌] P.R.Roy: "Simultaneous Electrochemical Detection of Uric Acid and Ascorbic Acid at Poly (N,N-Dimethylaniline) Film-Coated GC Electrode"J.Electroanal.Chem.. 561. 75-82 (2004)

[文献書誌] D.Zhang: "Electro-reduction of Dioxygen in 1-n- Alkyl-3-methylimidazolium Tetrafluoroborate Room-temperature Ionic Liquids"J.Electrochem.Soc.. (in press). (2004)

[文献書誌] M.S.El-Deab: "A Fabrication of Au(111) -like Polycrystalline Gold Electrodes and Their Applications to the Oxygen Reduction"J.Electrochem.Soc.. (in press). (2004)

[文献書誌] P.R.Roy: "Electrooxidation and Amperometric Detection of Ascorbic Acide at GC Electrode Modified by Electropolymerization of N,N-Dimethylaniline"Electroanalysis. (in press). (2004)

[文献書誌] T.Ohsaka(分担): "Metal Complexes and Metals in Macromolecules"Wiley-VCH. 667 (2003)

[文献書誌] 大坂武男(分担): "第3版高分子辞典"朝倉書店(印刷中). (2004)

[文献書誌] 大坂武男(分担): "新訂版・表面科学基礎と応用"(株)エヌ・ティー・エス(印刷中). (2004)

2003 年度実績報告書

大坂武男東京工業大学, 大学院・総合理工学研究科, 教授 (80152099)