Development of The Third-generation Active Photocatalysts: Crystalline Shape-controlled Metal Oxide Particles

第三代活性光催化剂的开发：晶体形状控制的金属氧化物颗粒

• 批准号: 22245033
• 负责人: OHTANI Bunsho
• 金额: $ 26.87万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22245033/
• 关键词: 光触媒; 酸化チタン; アナタース; 十面体形状; アスペクト比; 光触媒活性; 酸化チタン光触媒; 急速加熱・急速冷却; 十面体形状微結晶; 赤外線電気炉; 結晶欠陥; 統計解析手法

Historically, semiconductor photocatalysts have been developed with the design of composition and crystalline structure (the first generation) and with that of particle size and specific surface area (the second generation). As the third-generation development of highly active photocatalysts, crystal morphology, which must be in relation with the crystal-lattice defects affecting the photocatalytic activity, is designed in this study. Here, titanium(IV) oxide (titania) particles exposing eight {101} facets and two {001} facets are prepared through gas-phase reaction of titanium(IV) chloride and oxygen, characterized mainly by X-ray diffraction measurement and examined their high photocatalytic activity in several reaction systems to clarify the effect of particle morphology on the photocatalytic activity.

从历史上看，半导体光催化剂的开发是通过成分和晶体结构的设计（第一代）以及粒度和比表面积的设计（第二代）。作为第三代高活性光催化剂的发展方向，本研究设计了与影响光催化活性的晶格缺陷有关的晶体形貌。在此，通过氯化钛（IV）和氧的气相反应制备暴露出八个{101}面和两个{001}面的氧化钛（IV）（二氧化钛）颗粒，主要通过X射线衍射测量来表征，并在几种反应体系中检查它们的高光催化活性，以澄清颗粒形态对光催化活性的影响。

项目成果

不均一系光触媒反応の新展開-光-化学エネルギー変換と環境浄化

多相光催化反应新进展——光化学能量转换与环境净化

• 发表时间: 2012
• 期刊: 化学と工業
• 作者: Y. Shiota;G. Juhasz;and K. Yoshizawa;大谷文章
• 通讯作者: 大谷文章

Preparation, Characterization and Photo- catalytic Activity of Octahedral Anatase Titania Photocatalysts

八面体锐钛矿二氧化钛光催化剂的制备、表征及光催化活性

• 发表时间: 2013
• 作者: Zhishun Wei;Bunsho Ohtani
• 通讯作者: Bunsho Ohtani

Revisiting Photocatalysis Studies in Their Thermodynamics and Kinetics for the Design of Highly Efficient Systems

重新审视光催化的热力学和动力学研究，以设计高效系统

• 发表时间: 2012
• 作者: S. Tojo;M. Fujitsuka;T. Majima;Hiroshi Kageyama;Bunsho Ohtani
• 通讯作者: Bunsho Ohtani

Revisiting Principle of Photocatalytic Reactions and Design of Highly Active Photocatalyst Materials

重温光催化反应原理及高活性光催化材料设计

• 发表时间: 2012
• 作者: 阿部志保美;伊野浩介;珠玖仁;末永智一;Bunsho Ohtani
• 通讯作者: Bunsho Ohtani

What we know and we dont know in photocatalysis: from conventional to plasmonic photocatalysis

光催化中我们所知道和不知道的：从传统光催化到等离子体光催化

• 发表时间: 2012
• 作者: T. Tachikawa;M. Fujitsuka;T. Majima;Bunsho Ohtani
• 通讯作者: Bunsho Ohtani