Single-molecule fluorescence imaging of the remote TiO2 photocatalytic oxidation

被引：33

作者：

Naito, K ^{[1
]}

Tachikawa, T ^{[1
]}

Fujitsuka, M ^{[1
]}

Majima, T ^{[1
]}

机构：

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

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2005年 / 109卷 / 49期

关键词：

D O I：

10.1021/jp0556005

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 remote TiO2 photocatalytic oxidation reaction of single dyes has been investigated by the single-molecule fluorescent imaging technique. The present results suggest that the active oxygen species (Ox) is most probably the center dot OH radical, which is generated from the photodecomposition of H2O2 by UV light. The analyses of the number, intensity, and spectrum of individual fluorescence spots at the single-molecule level also indicate that unoxidized and oxidized dyes exist during the bleaching processes of single dyes.

引用

页码：23138 / 23140

页数：3

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