Photocatalytic Activities of TiO2 Modified by Poly(fluorene-co-bithiophene) under Visible Light

被引：0

作者：

Song, Lin ^{[1
]}

Zeng, Xiaolong ^{[1
]}

Zhang, Xin ^{[1
]}

机构：

[1] Jinan Univ, Dept Environm Engn, JNU, Guangzhou, Guangdong, Peoples R China

来源：

BIOLOGY, ENVIRONMENT AND CHEMISTRY | 2011年

关键词：

Photocatalytic; TiO2; Polymer; Photosensitizer; Visible light; SEMICONDUCTOR PARTICULATE SYSTEM; ORGANIC POLLUTANTS; PHOTODEGRADATION; DEGRADATION; IRRADIATION; OXIDATION; POLYMER;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Photocatalytic removal of phenol was studied using the photocatalyst poly(fluorine-co-bithiophene) (PFB)/TiO2 under visible light. After two hours irradiation with a three watts GaN LEDs (light emitting diode) cluster, about 75% removal of phenol. the degradation reaction showed the firs order behavior and the reaction rate constants (k) of PFB/TiO2 was calculated to be 0.0169 min(-1). Diffuse reflectance spectra showed that the absorbance range of PFB/TiO2 was expanded from 387 nm (TiO2) to above 500 nm. Photoluminescent spectra and photoluminescent quantum efficiency indicated that electrons were transferred from PFB to the conduction band of TiO2. The surface modification using PFB did not decrease the photocatalytic activity of TiO2 under the UV light irradiation.

引用

页码：364 / 367

页数：4

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