Photoinduced charge separation in titania nanotubes

被引：112

作者：

Tachikawa, Takashi ^{[1
]}

Tojo, Sachiko ^{[1
]}

Fujitsuka, Mamoru ^{[1
]}

Sekino, Toru ^{[1
]}

Majima, Tetsuro ^{[1
]}

机构：

[1] Osaka Univ, SANKEN, Inst Sci & Ind Res, Osaka 5670047, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2006年 / 110卷 / 29期

关键词：

D O I：

10.1021/jp063800q

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：

The photocatalytic one-electron oxidation reaction of an aromatic compound during UV light irradiation of titania nanotubes and nanoparticles was investigated using time-resolved diffuse reflectance spectroscopy. Remarkably long-lived radical cations of the aromatic compound and trapped electrons were observed for the nanotubes when compared to those for nanoparticles. The influences of the morphology on the one-electron oxidation process of an aromatic compound adsorbed on the surface were discussed in terms of the charge recombination dynamics between the radical cation and electrons in TiO2.

引用

页码：14055 / 14059

页数：5

共 39 条

[11] Role of defects in the adsorption of aliphatic alcohols on the TiO2(110) surface [J].

Farfan-Arribas, E ;

Madix, RJ .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (41) :10680-10692

[12] Charge carrier dynamics of standard TiO2 catalysts revealed by femtosecond diffuse reflectance spectroscopy [J].

Furube, A ;

Asahi, T ;

Masuhara, H ;

Yamashita, H ;

Anpo, M .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (16) :3120-3127

[13] Parameters influencing charge recombination kinetics in dye-sensitized nanocrystalline titanium dioxide films [J].

Haque, SA ;

Tachibana, Y ;

Willis, RL ;

Moser, JE ;

Grätzel, M ;

Klug, DR ;

Durrant, JR .

JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (03) :538-547

[14]

Kasuga T, 1999, ADV MATER, V11, P1307, DOI 10.1002/(SICI)1521-4095(199910)11:15<1307::AID-ADMA1307>3.0.CO

[15]

2-H

[16] REACTIONS OF METHANOL ON TIO2(001) SINGLE-CRYSTAL SURFACES [J].

KIM, KS ;

BARTEAU, MA .

SURFACE SCIENCE, 1989, 223 (1-2) :13-32

[17] Coadsorption of horseradish peroxidase with thionine on TiO2:: Nanotubes for biosensing [J].

Liu, SQ ;

Chen, AC .

LANGMUIR, 2005, 21 (18) :8409-8413

[18] TI3+ DEFECT SITES ON TIO2(110) - PRODUCTION AND CHEMICAL-DETECTION OF ACTIVE-SITES [J].

LU, GQ ;

LINSEBIGLER, A ;

YATES, JT .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (45) :11733-11738

[19] Photocatalytic transformation of organic compounds in the presence of inorganic anions. 1. Hydroxyl-mediated and direct electron-transfer reactions of phenol on a titanium dioxide-fluoride system [J].

Minero, C ;

Mariella, G ;

Maurino, V ;

Pelizzetti, E .

LANGMUIR, 2000, 16 (06) :2632-2641

[20] Kinetic analysis of photoinduced reactions at the water semiconductor interface [J].

Minero, C .

CATALYSIS TODAY, 1999, 54 (2-3) :205-216

← 1 2 3 4 →