1999 Fiscal Year Annual Research Report

イオンビームを利用する特殊形状基板上での高機能酸化チタン光触媒の創製

Research Project

Project/Area Number	10650816
Research Institution	Osaka Prefecture University
Principal Investigator	安保正一大阪府立大学, 工学部, 教授 (70094498)
Co-Investigator(Kenkyū-buntansha)	松岡雅也大阪府立大学, 工学部, 助手 (80305648) 山下弘巳大阪府立大学, 工学部, 助教授 (40200688)
Keywords	光触媒 / ゾルーゲル法 / 酸化チタン / NO直接分解反応 / イオン注入法 / Cr,V / 可視光応答性
Research Abstract	申請者らは前年度までに、イオン交換法やゾルーゲル法を用いるとシリカマトリックスやゼオライトに酸化チタン触媒を高分散に固定化でき、これら高分散酸化チタン光触媒は従来の粉末酸化チタンに比べ常温でNOxを高効率に窒素と酸素に直接分解することを見いだしている。本研究では、これらの知見に基づき、触媒調製技術として新規なイオン注入法を用いることで高分散で高活性な酸化チタン光触媒に可視光応答性を付与することを試みた。ゾル-ゲル法により調製した高分散酸化チタン光触媒にCrやVなどの遷移金属イオンを注入するとこの酸化チタン種のUV吸収領域が長波長側の可視光領域にまでシフトすることを見いだした。この触媒は可視光照射下においてNOを窒素と酸素に直接分解し、また、紫外光照射下においても高いNO分解活性を示することから、CrやVの遷移金属イオンのイオン注入により高活性を有しかつ可視光応答性を有する理想的な高分散で高活性な酸化チタン光触媒の調製が可能となることがわかった。また、ESR、FT-IR、ホトルミネッセンス分光法による触媒のキャラクタリゼーションの結果、注入金属イオン種は高分散四配位チタン種と効率よく相互作用し、注入された遷移金属イオンが酸化チタン種の電子状態に摂動を与えることで触媒の可視光化が実現することがわかった。さらに、in-situでのESRによる光触媒反応機構の詳細な検討から、光励起された高分散な四配位構造の酸化チタン種からNOの反結合性軌道への電子移動を通してNOの光触媒分解が進行することも明らかにした。

Research Products
(19 results)

All Other

All Publications (19 results)

[Publications] Masakazu ANPO: "Design and Development of Unique Titanium Oxide Photocatalysts Capable of Operating under Visible Light Irradiation by an Advanced Metal Ion-implantation Method"Stud. Surf. Sci. Catal.. 121. 104-105 (1999)
[Publications] Masakazu ANPO: "Generation of Superoxide Ions at Oxide Surfaces"Topics in Catal.. 8. 189-198 (1999)
[Publications] Masakazu ANPO: "Characterization of the Local Structure of the Vanadium Silicalite (VS-2) Catalyst and Its Photocatalytic Reactivity for the Decomposition of NO into N2 and O2"J. Phys. Chem.. 103. 9295-9301 (1999)
[Publications] Masakazu ANPO: "The Adsorption and Activation of CO Molecules on ZrO2 Catalysts Having Low Coordinated Surface Sites"Res. Chem. Intermed.. 25. 1-12 (1999)
[Publications] 安保正一: "イオン注入による酸化チタン光触媒の可視光化"表面科学. 20. 60-65 (1999)
[Publications] 安保正一: "酸化チタンや酸化バナジウム種を含有するゼオライト光触媒の構築とその上でのNOxの光触媒分解反応"Eco Industry. 4. 11-19 (1999)
[Publications] Hiromi YAMASHITA: "Characterization of Metal Ion-implanted Titanium Oxide Photocatalysts Operating under Visible Light Irradiation"J. Synchrotron Rad.. 6. 451-452 (1999)
[Publications] Hiromi YAMASHITA: "Characterization and Photocatalytic Reactivities of Cr-HMS Mesoporous Molecular Sieves"J. Synchrotron Rad.. 6. 453-454 (1999)
[Publications] Hiromi YAMASHITA: "Photoluminescence Properties and Photocatalytic Reactivities of the Cr- and V-HMS Mesoporous Zeolite Catalysts"Proc. 12th Intern. Zeolite Conf.. 667-672 (1999)
[Publications] J. L. ZHANG: "Fluorescence Properties of 2, 5-Bis(4-(diethylamino)phenyl)-1, 3, 4-oxadiazole Molecules Encapsulated in SiO2 and Si-Ti Binary Oxide Matrices by the Sol-Gel Method"Langmuir. 15. 77-82 (1999)
[Publications] Tsunehiro FUJII: "Effect of Metals on the Photoinduced Proton Transfer from Anthrone to 9-Anthrol in Glasses Prepared by the Sol-Gel Method"J. Photochem Photobio. A: Chem. 125. 58-91 (1999)
[Publications] Akihiro FURUBE: "Charge Carrier Dynamics of Standard TiO2 Catalysts Revealed by Femtosecond Diffuse Reflectance Spectroscopy"J. Phys. Chem.. 103. 3120-3127 (1999)
[Publications] Keita IKEUE: "Photocatalytic Reduction of CO2 with H2O on Titanium Oxide Prepared within the FSM-16" Mesoporous Zeolites"Chem. Lett.. 1135-1136 (1999)
[Publications] Masaru HARADA: "Preparation of Titanium Oxide Photocatalysts Loaded on Activated Carbon and their Photocatalytic Reactivity for the Degradation of 2-Propanol"Res. Chem. Intermed.. 25. 757-768 (1999)
[Publications] Masaru HARADA: "Preparation of Titanium Oxide Photocatalysts Loaded on Activated Carbon by an Ionized Cluster Beam Method and their Photocatalytic Reactivities"Z. Phys. Chem.. 213. 59-65 (1999)
[Publications] D. R. PARK: "Photocatalytic Oxidation of Ethylene to CO2 and H2O on Ultrafine Powdered TiO2 Photocatalysts in the Presence of O2 and H2O"J. Catal.. 185. 114-119 (1999)
[Publications] Shinya HIGASHIMOTO: "Investigation of the Local Structure of Vanadium Silicalite Catalyst (VS-1) Using XAFS, FT-IR and Photoluminescence Spectroscopic Methods"Jpn. J. Appl. Phys.. 38. 47-50 (1999)
[Publications] 山下弘巳: "酸化チタン光触媒の調製と環境浄化・太陽光利用への応用"ケミカルエンジニアリング. 18. 930-939 (1999)
[Publications] Masakazu ANPO: "Advances in Catalysis"Applications of Photoluminescence Techniques to the Characterization of Solid Surfaces in Relation to Adsorption, Catalysis, and Photocatalysis. 138 (1999)

1999 Fiscal Year Annual Research Report

イオンビームを利用する特殊形状基板上での高機能酸化チタン光触媒の創製

Principal Investigator

安保 正一 大阪府立大学, 工学部, 教授 (70094498)

Research Products

[Publications] Masakazu ANPO: "Design and Development of Unique Titanium Oxide Photocatalysts Capable of Operating under Visible Light Irradiation by an Advanced Metal Ion-implantation Method"Stud. Surf. Sci. Catal.. 121. 104-105 (1999)

[Publications] Masakazu ANPO: "Generation of Superoxide Ions at Oxide Surfaces"Topics in Catal.. 8. 189-198 (1999)

[Publications] Masakazu ANPO: "Characterization of the Local Structure of the Vanadium Silicalite (VS-2) Catalyst and Its Photocatalytic Reactivity for the Decomposition of NO into N2 and O2"J. Phys. Chem.. 103. 9295-9301 (1999)

[Publications] Masakazu ANPO: "The Adsorption and Activation of CO Molecules on ZrO2 Catalysts Having Low Coordinated Surface Sites"Res. Chem. Intermed.. 25. 1-12 (1999)

[Publications] 安保 正一: "イオン注入による酸化チタン光触媒の可視光化"表面科学. 20. 60-65 (1999)

[Publications] 安保 正一: "酸化チタンや酸化バナジウム種を含有するゼオライト光触媒の構築とその上でのNOxの光触媒分解反応"Eco Industry. 4. 11-19 (1999)

[Publications] Hiromi YAMASHITA: "Characterization of Metal Ion-implanted Titanium Oxide Photocatalysts Operating under Visible Light Irradiation"J. Synchrotron Rad.. 6. 451-452 (1999)

[Publications] Hiromi YAMASHITA: "Characterization and Photocatalytic Reactivities of Cr-HMS Mesoporous Molecular Sieves"J. Synchrotron Rad.. 6. 453-454 (1999)

[Publications] Hiromi YAMASHITA: "Photoluminescence Properties and Photocatalytic Reactivities of the Cr- and V-HMS Mesoporous Zeolite Catalysts"Proc. 12th Intern. Zeolite Conf.. 667-672 (1999)

[Publications] J. L. ZHANG: "Fluorescence Properties of 2, 5-Bis(4-(diethylamino)phenyl)-1, 3, 4-oxadiazole Molecules Encapsulated in SiO2 and Si-Ti Binary Oxide Matrices by the Sol-Gel Method"Langmuir. 15. 77-82 (1999)

[Publications] Tsunehiro FUJII: "Effect of Metals on the Photoinduced Proton Transfer from Anthrone to 9-Anthrol in Glasses Prepared by the Sol-Gel Method"J. Photochem Photobio. A: Chem. 125. 58-91 (1999)

[Publications] Akihiro FURUBE: "Charge Carrier Dynamics of Standard TiO2 Catalysts Revealed by Femtosecond Diffuse Reflectance Spectroscopy"J. Phys. Chem.. 103. 3120-3127 (1999)

[Publications] Keita IKEUE: "Photocatalytic Reduction of CO2 with H2O on Titanium Oxide Prepared within the FSM-16" Mesoporous Zeolites"Chem. Lett.. 1135-1136 (1999)

[Publications] Masaru HARADA: "Preparation of Titanium Oxide Photocatalysts Loaded on Activated Carbon and their Photocatalytic Reactivity for the Degradation of 2-Propanol"Res. Chem. Intermed.. 25. 757-768 (1999)

[Publications] Masaru HARADA: "Preparation of Titanium Oxide Photocatalysts Loaded on Activated Carbon by an Ionized Cluster Beam Method and their Photocatalytic Reactivities"Z. Phys. Chem.. 213. 59-65 (1999)

[Publications] D. R. PARK: "Photocatalytic Oxidation of Ethylene to CO2 and H2O on Ultrafine Powdered TiO2 Photocatalysts in the Presence of O2 and H2O"J. Catal.. 185. 114-119 (1999)

[Publications] Shinya HIGASHIMOTO: "Investigation of the Local Structure of Vanadium Silicalite Catalyst (VS-1) Using XAFS, FT-IR and Photoluminescence Spectroscopic Methods"Jpn. J. Appl. Phys.. 38. 47-50 (1999)

[Publications] 山下 弘巳: "酸化チタン光触媒の調製と環境浄化・太陽光利用への応用"ケミカルエンジニアリング. 18. 930-939 (1999)

[Publications] Masakazu ANPO: "Advances in Catalysis"Applications of Photoluminescence Techniques to the Characterization of Solid Surfaces in Relation to Adsorption, Catalysis, and Photocatalysis. 138 (1999)

安保正一大阪府立大学, 工学部, 教授 (70094498)

[Publications] 安保正一: "イオン注入による酸化チタン光触媒の可視光化"表面科学. 20. 60-65 (1999)

[Publications] 安保正一: "酸化チタンや酸化バナジウム種を含有するゼオライト光触媒の構築とその上でのNOxの光触媒分解反応"Eco Industry. 4. 11-19 (1999)

[Publications] 山下弘巳: "酸化チタン光触媒の調製と環境浄化・太陽光利用への応用"ケミカルエンジニアリング. 18. 930-939 (1999)