One-electron oxidation of aromatic sulfides adsorbed on the surface of TiO2 particles studied by time-resolved diffuse reflectance spectroscopy

被引：27
|
作者：
Tachikawa, T [1 ]
Tojo, S [1 ]
Fujitsuka, M [1 ]
Majima, T [1 ]
机构：
[1] Osaka Univ, SANKEN, Ibaraki, Osaka 5650047, Japan
来源：
CHEMICAL PHYSICS LETTERS | 2003年 / 382卷 / 5-6期
关键词：
D O I：
10.1016/j.cplett.2003.10.110
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
One-electron oxidation of 4-methyl-p-tolylsulfide (NITS) and 4-methylthiophenylmethanol (MTPM) adsorbed on the surface of TiO2 powder slurried in acetonitrile has been investigated by the time-resolved diffuse reflectance spectroscopy. Relatively high concentration of the adsorbed MTPM determined by UV absorption spectral measurements clearly indicates that the -OH group of MTPM plays an important role in adsorbing on the surface of TiO2 particles. The initial concentration of the radical cations of substrates generated from one-electron oxidation with valence band holes or trapped hydroxyl radical significantly depended on the substrate concentration adsorbed on the TiO2 surface. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：618 / 625
页数：8
相关论文
共 50 条
  • [1] Influences of adsorption on TiO2 photocatalytic one-electron oxidation of aromatic sulfides studied by time-resolved diffuse reflectance spectroscopy
    Tachikawa, T
    Tojo, S
    Fujitsuka, M
    Majima, T
    JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (19): : 5859 - 5866
  • [2] Evaluation of the efficiency of the photocatalytic one-electron oxidation reaction of aromatic compounds adsorbed on a TiO2 surface
    Tachikawa, T
    Yoshida, A
    Tojo, S
    Sugimoto, A
    Fujitsuka, M
    Majima, T
    CHEMISTRY-A EUROPEAN JOURNAL, 2004, 10 (21) : 5345 - 5353
  • [3] Photocatalytic oxidation reactivity of holes in the sulfur- and carbon-doped TiO2 powders studied by time-resolved diffuse reflectance spectroscopy
    Tachikawa, T
    Tojo, S
    Kawai, K
    Endo, M
    Fujitsuka, M
    Ohno, T
    Nishijima, K
    Miyamoto, Z
    Majima, T
    JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (50): : 19299 - 19306
  • [4] Charge-Carrier Dynamics in Nitrogen-Doped TiO2 Powder Studied by Femtosecond Time-Resolved Diffuse Reflectance Spectroscopy
    Yamanaka, Ken-ichi
    Morikawa, Takeshi
    JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (01): : 1286 - 1292
  • [5] Luminescence process in anatase TiO2 studied by time-resolved spectroscopy
    Watanabe, M
    Hayashi, T
    Yagasaki, H
    Sasaki, S
    INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2001, 15 (28-30): : 3997 - 4000
  • [6] Luminescence process in anatase TiO2 studied by time-resolved spectroscopy
    Watanabe, M
    Hayashi, T
    Yagasaki, H
    Sasaki, S
    PROCEEDINGS OF THE 2000 INTERNATIONAL CONFERENCE ON EXCITONIC PROCESSES IN CONDENSED MATTER, 2001, : 429 - 432
  • [7] Direct observation of one-electron oxidation processes of aromatic sulfides in TiO2 colloidal solution by laser flash photolysis
    Tojo, S
    Tachikawa, T
    Fujitsuka, M
    Majima, T
    PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2004, 6 (05) : 960 - 964
  • [8] Primary photocatalytic reactions in TiO2 nanoparticles studied by time-resolved laser spectroscopy
    Katoh, Ryuzi
    Tamaki, Yoshiaki
    Furube, Akihiro
    SOLAR HYDROGEN AND NANOTECHNOLOGY VI, 2011, 8109
  • [9] Photoinduced One-Electron Oxidation of Benzyl Methyl Sulfides in Acetonitrile: Time-Resolved Spectroscopic Evidence for a Thionium Ion Intermediate
    Bettoni, Marta
    Del Giacco, Tiziana
    Stradiotto, Marina
    Elisei, Fausto
    JOURNAL OF ORGANIC CHEMISTRY, 2015, 80 (16): : 8001 - 8008
  • [10] Effects of water addition on the methanol oxidation on Pt/TiO2 photocatalyst studied by time-resolved infrared absorption spectroscopy
    Yamakata, A
    Ishibashi, TA
    Onishi, J
    JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (36): : 9820 - 9823
12345