Visible-light sensitized photocatalysts characterized by resonance Raman spectroscopy

通过共振拉曼光谱表征可见光敏化光催化剂

• 批准号: 21360395
• 负责人: ONISHI Hiroshi
• 金额: $ 11.56万
• 依托单位: Kobe University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21360395/
• 关键词: 光触媒; 共鳴ラマン散乱; 構造解析; 振動分光; 光励起状態; 不純物ドープ; 電子-フォノンカップリング; 酸化チタン; 半導体

A Raman scattering spectrometer has been developed for characterizing visible-light sensitized photocatalysts. When the incident photon energy is resonant to an electronic transition of the object, Raman scattering probability is enhanced by 104times or more. This resonance enhancement is well known and intentionally used in characterizing colored solutes or labeled biomaterials in liquid. In the present study, the lattice vibration of sulfur- or nitrogen-doped TiO_2 photocatalysts are examined using 442 nm light for excitation to be in resonance with the dopant-induced electronic transition.

已经开发出一种拉曼散射光谱仪来表征可见光敏化光催化剂。当入射光子能与物体的电子过渡共振时，拉曼散射概率会增加104倍或更多。这种共振的增强是众所周知的，并且有意地用于表征液体中的有色溶质或标记的生物材料。在本研究中，使用442 nm的光与掺杂剂诱导的电子过渡产生共振，对硫或氮掺杂的TIO_2光催化剂的晶格振动进行了检查。

项目成果

FM-AFM Study of Hydration at Water-Metal Oxides Interfaces

水-金属氧化物界面水合的 FM-AFM 研究

• 发表时间: 2010
• 作者: T. KUSUMI;K. ISHIHARA;H. MIZUMOTO;K. NAKAZAWA;H. IJIMA;K. FUNATSU;T. KAJIWARA;塚原保徳,山内智央,山田勝弘,河野巧,川端亮次,和田雄二;Takumi Hiasa
• 通讯作者: Takumi Hiasa

Low-Frequency Vibrations of TiO2Surface Observed by Fourth-order Coherent Raman Spectroscopy (招待講演)

四阶相干拉曼光谱观察TiO2表面的低频振动（特邀报告）

• 发表时间: 2010
• 作者: Tomonori Nomoto;Hiroshi Onishi.
• 通讯作者: Hiroshi Onishi.

Infrared absorption studies of photocatalysts for the water-splitting reaction

光催化剂水分解反应的红外吸收研究

• 发表时间: 2009
• 作者: 堀之内貴明;玉岡邦康;古澤力;平沢敬;小野直亮;鈴木真吾;四方哲也;清水浩;Hiroshi Onishi
• 通讯作者: Hiroshi Onishi

FM-AFM Study of Thiol-Modified Gold Films Immersed in Organic Solvents

有机溶剂中硫醇改性金膜的 FM-AFM 研究

• 发表时间: 2010
• 作者: Siriwach;R.;Kinoshita;H.;Kitani;S.;Igarashi;Y.;Pansuksan;K.;Panbangred;W.;Nihira;T.;和田雄二;Takeo Yamaguchi;Takumi Hiasa
• 通讯作者: Takumi Hiasa

Kelvin Probe Force Microscope Study of a Pt/TiO_2 Catalyst Model Placed in an Atmospheric Pressure of N_2 Environment

大气压N_2环境下Pt/TiO_2催化剂模型的开尔文探针力显微镜研究

• 发表时间: 2012
• 期刊: Chemistry - An Asian Journal
• 作者: Ryohei Kokawa;Masahiro Ohta;Akira Sasahara;Hiroshi Onishi.
• 通讯作者: Hiroshi Onishi.