Development of highly visible-light-sensitive photocatalysts withsurface nanostructure controlled by cold plasma

冷等离子体控制表面纳米结构的高可见光敏感光催化剂的开发

• 批准号: 20360338
• 负责人: YAMADA Kenji
• 金额: $ 7.16万
• 依托单位: Kitakyushu National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20360338/
• 关键词: 低温プラズマ; 光触媒; 可視光; ナノ構造; ドーピング; 表面

Highly visible-light-sensitive photocatalysts are developed with the formation of surface nanostructures controlled by plasma-surface interaction, as follows : (1) Nitrogen-doped surface layer are formed on surfaces of TiO_2 and transition metal-doped TiO_2, respectively. It becomes apparent that their band-gaps become narrow with the formation of the surface layer. (2) Cu-contained layer is formed on a surface of TiO_2 with plasma CVD using organometallic compound. Multi-electron-reactivity of the plasma CVD-treated TiO_2 can realize with the contained Cu reduced by visible-light-excited electrons. (3) Composite composed of Nb-doped TiO_2 as n-type semiconductor having nitrogen-doped surface layer and CuBi_2O_4 as p-type semiconductor shows Z-scheme mechanism in which visible-light-excited electron can be transferred form the n-type to the p-type semiconductor after each visible-light excitation in the semiconductors.

通过等离子体-表面相互作用控制表面纳米结构的形成，发展了高可见光敏感的光催化剂，具体如下：(1)分别在二氧化钛和过渡金属掺杂的二氧化钛表面形成氮掺杂表面层。很明显，随着表层的形成，它们的带隙变得很窄。(2)采用有机金属化合物，采用等离子体化学气相沉积技术在二氧化钛表面形成含铜涂层。等离子体CVD处理后的二氧化钛中的铜被可见光激发的电子还原，可以实现多电子反应。(3)Nb掺杂的TiO2n型半导体和CuBi2O4作为p型半导体在每一次可见光激发后，都表现出可见光激发电子从n型半导体向p型半导体转移的Z型机制。

项目成果

CO2 sensing performances of potentiometric sensor based on Na1+xZr2Si2PO12 (0 < x < 3)

• DOI: 10.2109/jcersj2.118.213
• 发表时间: 2010
• 期刊: Journal of the Ceramic Society of Japan
• 影响因子: 1.1
• 作者: K. Obata;S. Matsushima

Preparation and Characterization of Ca4Bi6O13 Complex Oxide

• DOI: 10.1246/cl.2011.288
• 发表时间: 2011-02
• 期刊: Chemistry Letters
• 影响因子: 1.6
• 作者: ObataKenji;MatsumotoKensuke;UeharaTakuya;DoiAkane;ObukuroYuki;MatsushimaShigenori

NASICON-based NO_2 device attached with metal oxide and nitrite compound for the low temperature operation

基于 NASICON 的 NO_2 装置，附有金属氧化物和亚硝酸盐化合物，用于低温操作

• 发表时间: 2008
• 期刊: Sensors & Actuators B 130
• 作者: J. M. Barandiaran;他;H. Abe;Kenji Obata
• 通讯作者: Kenji Obata

Plasma CVD Treatment for Titanium Dioxides to Approach The High Performance of Photocatalysts by Visible Light Irradiation

通过可见光照射对二氧化钛进行等离子体 CVD 处理以达到光催化剂的高性能

• 发表时间: 2010
• 作者: 井上忠信;殷福星;木村勇次;山田憲二;山田憲二;井上忠信;井上忠信;Kenji Yamada
• 通讯作者: Kenji Yamada

酸化チタン微粒子のプラズマCVD処理及び熱処理による可視光応答化に関する研究

通过等离子体CVD处理和热处理制备氧化钛颗粒可见光响应的研究

• 发表时间: 2009
• 作者: Y. Morisada;H.Fujii;T.Mizuno;G.Abe;T. Nagaoka;M. Fukusumi;中村綾子
• 通讯作者: 中村綾子