Enhanced and Selective Degradation of Pollutants over Cyclodextrin/TiO2 under Visible Light Irradiation

被引：30

作者：

Zhang, Xu ^{[1
]}

Li, Xuankun ^{[1
]}

Deng, Nansheng ^{[1
]}

机构：

[1] Wuhan Univ, Sch Resources & Environm Sci, Wuhan 430079, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2012年 / 51卷 / 02期

关键词：

PHOTOCATALYTIC DEGRADATION; BETA-CYCLODEXTRIN; PHENOLIC-COMPOUNDS; DYE POLLUTANTS; TIO2; SURFACE; INCLUSION; COMPLEXES; PHOTODEGRADATION; NANOPARTICLES;

D O I：

10.1021/ie201694v

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The photocatalytic performance of cyclodextrin modified TiO2 (TiO2/beta-CD) on the degradation of rhodamine B and bisphenol A (BPA) was studied in this work. The interactions between beta-CD and TiO2 varied as the synthesis method changes. When applying TiO2/beta-CD synthesized from photoinduced self-assembly method as photocatalyst, the initial visible light (lambda >= 420 nm) degradation rates R-0 of rhodamine B and BPA increased by 4.6 and 3.2 times respectively. The TiO2/beta-CD hybrid material synthesized from adsorption method only showed enhancement in dye pollutants degradation. The reactivity of TiO2/beta-CD under visible light was correlated with the specific surface area of unmodified semiconductor. The mechanism for the enhanced and selective degradation of pollutants over TiO2/beta-CD was also proposed in this work.

引用

页码：704 / 709

页数：6

共 38 条

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