Design and Development of Second-generation TiO2 Photocatalyst Operating under Solar Beam Irradiation for the Decomposition of NOx
太阳光照射下分解氮氧化物的第二代TiO2光催化剂的设计与开发
基本信息
- 批准号:09555272
- 负责人:
- 金额:$ 6.85万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:1997
- 资助国家:日本
- 起止时间:1997 至 1998
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
In this research project, the design and development of TiO_2 photocatalysts which can absorb visible light and operate efficiently and effectively not only under ultraviolet light but also upon irradiation with visible light or solar beam for the decomposition of NO into N_2 and 0_2 were carried out. Until now, photocatalytic reactions involving TiO_2 photocatalysts for the decomposition reaction of nitrogen oxides (NOx) in the atmosphere are known to proceed only under irradiation of TiO2 photocatalysts with ultraviolet light having shorter wavelength than 380nm, allowing the use of 3% of solar beam. In order to use solar beam more efficiently, we have elucidated the modification of TiO_2 photocatalyst by applying the advanced metal ion-implantation with various transition metal ions such as Cr highly accelerated by high voltage. A combination of such metal ion-implantation and the subsequent calcination of the catalyst in oxygen at around 723 K enables a large shift in the absorption bands of TiO_2 toward visible-light regions, its extent depending on the amount of Cr ions implanted. Such Cr ion-implanted TiO_2 catalysts successfully decompose NO into N_2, 0_2 and N_2O even at 275 K under irradiation with visible light longer than 450nm. Furthermore, the reaction proceeded at exactly the same rate to that of the unimplanted TiO_2 catalysts under band-gap UV light irradiation. Under outdoor solar light irradiation at ordinary temperatures, the Cr ion-implanted TiO_2 catalyst exhibited photocatalytic reactivity several times higher than the original unimplanted TiO_2 photocatalyst. It can be said that present research has opened the way to many innovative possibilities, significantly to address urgent environmental problems, and can also be considered an important breakthrough in the utilization of solar energy.
在该研究项目中,TIO_2光催化剂的设计和开发可以吸收可见光并有效地操作,不仅在紫外线下,而且在用可见光或太阳能光束进行照射下,将NO分解为N_2和0_2。到目前为止,已知涉及涉及TIO_2光催化剂的光催化反应,用于大气中氮氧化物(NOX)的分解反应,仅在Tio2光催化剂的带有紫外线的Tio2光催化剂的辐射下才能进行,其波长比380nm较短,从而允许使用3%的Solar Beb。为了更有效地使用太阳束,我们通过将高级金属离子植入物与各种过渡金属离子(例如高压高度加速的Cr)施加了高级金属离子植入术,从而阐明了TiO_2光催化剂的修饰。这种金属离子植入术和随后在氧气中催化剂在723 k处的钙化的结合使TiO_2的吸收带向可见光的灯区域发生了很大的转移,其程度取决于所植入的CR离子的量。这种cr离子植入的TIO_2催化剂即使在辐照下,在275 K下,仍将NO分解为N_2、0_2和N_2O,可见光长于450nm。此外,该反应以与带隙紫外线光照射下未植入的TIO_2催化剂的速率完全相同的速率进行。在普通温度下的室外太阳光照射下,CR离子植入的TIO_2催化剂表现出比原始未植入的TIO_2光催化剂的光催化反应性。可以说,目前的研究为许多创新的可能性开辟了道路,可以大大解决紧急环境问题,也可以被认为是太阳能利用的重要突破。
项目成果
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Hiromi YAMASHITA: "Preparation of Titanium Oxide Photocatalysts Anchored on Porous Silica Glass by a Metal Ion-Implantation Method and Their Photocatalytic Reactivities for the Degradation of 2-Propanol Diluted in Water" J.Phys.Chem.B. 102. 10707-10711 (1
Hiromi YAMASHITA:“通过金属离子注入法制备锚定在多孔二氧化硅玻璃上的二氧化钛光催化剂及其降解水中稀释的 2-丙醇的光催化反应性”J.Phys.Chem.B。
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Sinya.HIGASHIMOTO: "Investigation of the Local Structure of Vanadium Silicalite Catalyst(VS-l) Using XAFS,FT-IR and Photoluminescence Spectroscopic Methods" Jpn.J.Appl.Phys.(In-press). In-press (1998)
Sinya.HIGASHIMOTO:“利用 XAFS、FT-IR 和光致发光光谱方法研究钒硅沸石催化剂 (VS-1) 的局部结构”Jpn.J.Appl.Phys.(印刷中)。
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Sinya HIGASHIMOTO: "Photoluminescence Properties of the Vanadium Silicalite-1 Catalyst and Its Photocatalytic Reactivity for the Reduction of NO with Propane" Chem.Lett.1127-1128 (1997)
Sinya HIGASHIMOTO:“Vanadium Silicalite-1 催化剂的光致发光特性及其用丙烷还原 NO 的光催化反应性”Chem.Lett.1127-1128 (1997)
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Shu,Guo.zhang: "Characterization of V-oxide/ZSM-5 Zeolite Catalysts Prepared by the Solid-State Reaction and Their Photocatalytic Reactivity: In Situ Photoluminescence,XAFS,ESR,FT-IR,and UV-VIS Investigation" J.Phys.Chem.B. 102. 5590-5594 (1998)
舒国章:“固相反应制备的V-Oxide/ZSM-5沸石催化剂的表征及其光催化反应活性:原位光致发光、XAFS、ESR、FT-IR和UV-VIS研究”,J.
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M.Anpo: "Applications of Metal Ion-implantation Method for the Design and Development of Unique Titanium Oxide Photocatalysts Able to Operate under Visible Light Irradiation" Proc.3rd Japan-Eu Joint Workshop on the Frontiers of Catalytic Science, (Tsukuba
M.Anpo:“应用金属离子注入方法设计和开发能够在可见光照射下运行的独特氧化钛光催化剂”Proc.3rd Japan-Eu Joint Workshop on the Frontiers of Catalytic Science(筑波)
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ANPO Masakazu的其他基金
Development of Efficient Water Splitting System Enabling Separate Evolution of H_2 and O_2 from Water Using an Unique Titanium Oxide Thin Film and Solar Light
开发高效水分解系统,利用独特的氧化钛薄膜和太阳光从水中分离出 H_2 和 O_2
- 批准号:2036036620360366
- 财政年份:2008
- 资助金额:$ 6.85万$ 6.85万
- 项目类别:Grant-in-Aid for Scientific Research (B)Grant-in-Aid for Scientific Research (B)
Design and Development of Unique Photocatalytic Systems for the Decomposition of NOx
设计和开发用于分解氮氧化物的独特光催化系统
- 批准号:1004417010044170
- 财政年份:1998
- 资助金额:$ 6.85万$ 6.85万
- 项目类别:Grant-in-Aid for Scientific Research (B).Grant-in-Aid for Scientific Research (B).
The Design and Development of Novel Titanium Oxide Photocatalysts Prepared on the Various Plate Materials by an Advanced Ion Engineering Techniques
采用先进离子工程技术在各种板材上制备新型氧化钛光催化剂的设计与开发
- 批准号:1065081610650816
- 财政年份:1998
- 资助金额:$ 6.85万$ 6.85万
- 项目类别:Grant-in-Aid for Scientific Research (C)Grant-in-Aid for Scientific Research (C)
Design of Active Photocatalytic System for Removal of NOx
活性光催化脱硝系统设计
- 批准号:0504411005044110
- 财政年份:1993
- 资助金额:$ 6.85万$ 6.85万
- 项目类别:Grant-in-Aid for international Scientific ResearchGrant-in-Aid for international Scientific Research
Preparation of Photocatalysts in Micro-pores of Zeolite and Their Reaction Dynamics
沸石微孔光催化剂的制备及其反应动力学
- 批准号:0545312305453123
- 财政年份:1993
- 资助金额:$ 6.85万$ 6.85万
- 项目类别:Grant-in-Aid for General Scientific Research (B)Grant-in-Aid for General Scientific Research (B)
Design of Highly Active Photocatalytic System for the Removal of NOx
高活性光催化脱硝系统设计
- 批准号:0204412502044125
- 财政年份:1990
- 资助金额:$ 6.85万$ 6.85万
- 项目类别:Grant-in-Aid for international Scientific ResearchGrant-in-Aid for international Scientific Research
Preparation of Ultra-Thin-Film Anchored Metal Oxide Catalysts Via Laser Excitation and Their Photocatalytic Activities
激光激发超薄膜锚定金属氧化物催化剂的制备及其光催化活性
- 批准号:0155063201550632
- 财政年份:1989
- 资助金额:$ 6.85万$ 6.85万
- 项目类别:Grant-in-Aid for General Scientific Research (C)Grant-in-Aid for General Scientific Research (C)
Preparation of Highly Dispersed Anchored Catalysts by Photochemical Activation of Adsorbed Species and Their Photocatalytic Activities
吸附物质光化学活化制备高分散锚定催化剂及其光催化活性
- 批准号:6255059562550595
- 财政年份:1987
- 资助金额:$ 6.85万$ 6.85万
- 项目类别:Grant-in-Aid for General Scientific Research (C)Grant-in-Aid for General Scientific Research (C)
相似国自然基金
面向高效分解水制氢的TiO2-非贵金属单原子光催化剂的原位构筑及协同作用机制
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- 资助金额:30 万元
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TiO2/共轭聚合物复合S型异质结光催化剂构建及产H2O2性能增强机理研究
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- 批准年份:2022
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Development of visible-driven plasmonic heterojunction N-TiO2/BiVO4 photocatalyst for water splitting
用于水分解的可见光驱动等离子体异质结N-TiO2/BiVO4光催化剂的开发
- 批准号:567746-2022567746-2022
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Development of an additive accelerates the detoxification of aqueous harmful metal ions by TiO2 photocatalyst
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Hydrogen peroxide synthesis by Au nanoparticle-TiO2-SnO2 plasmonic photocatalyst
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