Enhanced photocatalytic activity of TiO2 by polydimethylsiloxane deposition and subsequent thermal treatment at 800 °C

被引：21

作者：

Jeong, Myung-Geun ^{[1
]}

Seo, Hyun Ook ^{[1
]}

Kim, Kwang-Dae ^{[1
]}

Kim, Young Dok ^{[1
]}

Lim, Dong Chan ^{[2
]}

机构：

[1] Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea

[2] Korea Inst Mat Sci, Mat Proc Div, Chang Won 641010, South Korea

来源：

THIN SOLID FILMS | 2012年 / 520卷 / 15期

关键词：

Photocatalysis; Evaporation polydimethylsiloxane; Titanium Dioxide; Powders; Hydrophilic Interaction; Methylene Blue; ABSORPTION; ANATASE; OXIDE;

D O I：

10.1016/j.tsf.2012.03.004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A thin film of polydimethylsiloxane (PDMS) was coated on TiO2 nanoparticles (P-25, Dagussa), and surface structures of the thin films were analyzed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. Furthermore, photocatalytic activity of PDMS-coated TiO2 samples with various annealing temperatures was determined using UV irradiation. We show that the 800 degrees C-annealed sample of PDMS-coated TiO2 showed a two-fold higher photocatalytic activity with respect to the bare TiO2. The enhanced photocatalytic activity was attributed to the greater hydrophilicity of the annealed PDMS coating. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：4929 / 4933

页数：5

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