人工光合成のための光触媒材料の開発

人工光合作用光催化材料的开发

• 批准号: 14050090
• 负责人: KUDO Akihiko
• 金额: $ 18.75万
• 依托单位: Tokyo University of Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14050090/
• 关键词: Environment; Catalysis; New Energy; Nanomaterials; Hydrogen; Visible Light Response; Photocatalyst; 可視光応答化; クロム; 水素生成; 酸素生成; アンチモン; 二酸化チタン; チタン酸ストロンチウム

Metal cation doping into TiO_2, and SrTiO_3 gave visible light responses for H_2 or O_2 evolution from aqueous solutions containing of sacrificial reagents. The visible light responses were due to the electronic transition from donor levels formed with dopants to conduction bands of the host photocatalysts. Codoping was effective to compensate charge unbalance brought by doping of transition metal cations, resulting in the improvement of visible light response for photocatalytic reactions. Among the transition metal-doped photocatalysts, SrTiO_3 doped with Rh (SrTiO_3:Rh) was the novel metal oxide photocatalyst that produced H_2 under visible light irradiation. Ag_3VO_4, Ag_<0.5>Pr_<0.5>TiO_3, and SnNb_2O_6 were also developed by band engineering of a balance band control. Overall water splitting under visible light irradiation has been achieved by construction of a Z-scheme photocatalysis system employing visible-light-driven photocatalysts for H_2 and O_2 evolution, and an Fe^<3+>/Fe^<2+> redox couple as an electron relay. Moreover, highly efficient sulfide photocatalysts for production of solar hydrogen was developed by making solid solutions of ZnS with narrow band gap semiconductors.

金属阳离子掺杂到tiO_2，而srtio_3从含有牺牲试剂的水溶液中给出了H_2或O_2进化的可见光响应。可见光响应是由于从掺杂剂形成的供体水平到宿主光催化剂的传导带的电子过渡。 CODOPing有效地补偿了通过过渡金属阳离子掺杂带来的电荷不平衡，从而改善了光催化反应的可见光响应。在过渡金属掺杂的光催化剂中，用RH（SRTIO_3：RH）掺杂的SRTIO_3是在可见光光照射下产生H_2的新型金属氧化物光催化剂。 AG_3VO_4，AG__ <0.5> PR_ <0.5> TIO_3和SNNB_2O_6也通过平衡频段控制的频段工程开发。通过构建Z-Scheme光催化系统，采用可见光的光驱动光催化剂来实现可见光照射下的整体水分，用于H_2和O_2进化，以及Fe^<3+>/fe>/fe>/fe^<2+> redox情侣作为电子中继。此外，通过用狭窄的带隙半导体制造ZnS的实心溶液，开发了用于生产太阳能氢的高效硫化物光催化剂。

项目成果

Reduction of nitrate and nitrite ions over Ni-ZnS photocatalyst under visible light irradiation in the presence of a sacrificial reagent

• DOI: 10.1246/cl.2002.838
• 发表时间: 2002-08
• 期刊: Chemistry Letters
• 影响因子: 1.6
• 作者: Osamu Hamanoi;A. Kudo

Recent progress in the development of visible light-driven powdered photocatalysts for water splitting

• DOI: 10.1016/j.ijhydene.2006.09.010
• 发表时间: 2007-09-01
• 期刊: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
• 影响因子: 7.2
• 作者: Kudo, Akihiko

The relationship between photocatalytic activity and crystal structure in strontium tantalates

• DOI: 10.1016/j.jcat.2005.02.021
• 发表时间: 2005-05
• 期刊: Journal of Catalysis
• 影响因子: 7.3
• 作者: Kohtaro Yoshioka;V. Petrykin;M. Kakihana;H. Kato;A. Kudo

工藤昭彦: "水分解光触媒技術の最新動向-太陽光と水で水素を造る-(分担)ワイドバンドギャップ半導体光触媒による高効率な水の分解反応"シーエムシー出版. 69-83 (2003)

Akihiko Kudo：“水分解光催化技术的最新趋势 - 利用阳光和水生产氢气 - （共享）使用宽带隙半导体光催化剂的高效水分解反应”CMC Publishing 69-83（2003）。

工藤昭彦: "図解光触媒のすべて(分担)クリーンエネルギーを作り出す光触媒〜水の光分解による水素生成反応"工業調査会. 30-38 (2003)

工藤明彦：“产生清洁能源的光催化剂图解 - 通过水的光解产生氢的反应”工业研究会 30-38 (2003)。