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.

研制了一种用于可见光敏化光催化剂表征的拉曼散射光谱仪。当入射光子能量与物体的电子跃迁共振时，拉曼散射概率增强104倍或更多。这种共振增强是众所周知的，并有意用于表征液体中的有色溶质或标记的生物材料。本研究采用442 nm光激发，研究了硫、氮掺杂TiO_2光催化剂的晶格振动与掺杂剂诱导的电子跃迁的共振。

项目成果

Aqueous Solution Structure over α-Al2O3(011̅2) Probed by Frequency-Modulation Atomic Force Microscopy

• DOI: 10.1021/jp1057447
• 发表时间: 2010-11
• 期刊: Journal of Physical Chemistry C
• 影响因子: 3.7
• 作者: Takumi Hiasa;K. Kimura;H. Onishi;M. Ohta;Kazuyuki Watanabe;Ryohei Kokawa;N. Oyabu;K. Kobayashi;Hirofumi Yamada

Dynamics of Doped NaTaO3Photocatalysts (招待講演)

掺杂NaTaO3光催化剂的动力学（特邀报告）

• 发表时间: 2011
• 作者: Baba;S.;Kinoshita;H.;Nihira;T;織田将史ら;Hiroshi Onishi
• 通讯作者: Hiroshi Onishi

AFM でみる光触媒と太陽電池(招待講演)

用 AFM 观察光催化剂和太阳能电池（特邀报告）

• 发表时间: 2010
• 作者: Mihoko Ui;Yoshikazu Tanaka;Takeshi Tsumuraya;Ikuo Fujii;Masayuki Inoue;Masahiro Hirama;and Kouhei Tsumoto;大西洋
• 通讯作者: 大西洋

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.