Photodegradation of phenol in a polymer-modified TiO2 semiconductor particulate system under the irradiation of visible light

被引：112

作者：

Song, Lin

Qiu, Rongliang ^{[1
]}

Mo, Yueqi

Zhang, Dongdong

Wei, Hui

Xiong, Ya

机构：

[1] Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangzhou 510275, Peoples R China

[2] S China Univ Technol, Coll Mat Sci & Engn, Guangzhou 510640, Peoples R China

[3] Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2007年 / 8卷 / 03期

关键词：

photodegradation; nanometer TiO2; conjugated polymer; photosensitizer; visible light;

D O I：

10.1016/j.catcom.2006.07.001

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：

Preparation methods and photocatalytic activity of the photocatalyst nanometer TiO2/poly-(fluorene-co-thiophene) (PFT) were studied under GdI3 lamp irradiation in the present research. The degradation rate of phenol using the target photocatalyst was much higher than it was using TiO2/rhodamine B. Diffuse reflectance spectra showed that the absorbance range of TiO2/PFT was expanded from 387 nm (TiO2) to about 500 nm, and fluorescent emission spectra showed that the spectral shape of TiO2/PFT was identical with that of pure PFT. The fluorescent quantum efficiency of TiO2/PFT was estimated at 3.8% while that of PFT film was about 14.7%, which indicated that electrons transferred from the PFT into the conduction band of TiO2. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：429 / 433

页数：5

共 33 条

[1] Charge transfer in photovoltaics consisting of interpenetrating networks of conjugated polymer and TiO2 nanoparticles [J].