Table of Contents Author Guidelines Submit a Manuscript
Journal of Analytical Methods in Chemistry
Volume 2017 (2017), Article ID 9629532, 6 pages
https://doi.org/10.1155/2017/9629532
Research Article

Preparation of TiO2 Nanotubes Loaded on Polyurethane Membrane and Research on Their Photocatalytic Properties

1College of Chemical Engineering, Guizhou University of Engineering Science, Bijie 551700, China
2School of Chemical Engineering, Guizhou Institute of Technology, Guiyang 550003, China
3School of Light Industry, Guizhou Institute of Technology, Guiyang 550003, China

Correspondence should be addressed to Xun Gong; moc.361@mmlpnuxgnog

Received 19 November 2016; Accepted 26 December 2016; Published 17 January 2017

Academic Editor: Miren Lopez de Alda

Copyright © 2017 Longli Lin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

To solve the problem of separation and recovery of photocatalyst in water, the modification of TiO2 was studied as well as its immobilization and photocatalytic properties. To improve surface properties, TiO2 nanotubes were synthesized by a hydrothermal method and silylated by silane coupling agents to introduce a certain functional group. Supported on polyurethane (PU) membrane, TiO2 nanotubes were prepared to produce immobilized PU/TiO2. Catalysts were characterized and identified by means of Fourier-transform infrared spectroscopy (FTIR), attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR), and scanning electron microscopy (SEM). Results showed that silylated TiO2 nanotubes were well grafted on the surface of the activated PU membrane. With a 300 W high pressure mercury lamp as light source, the photocatalytic activity and stability of immobilized PU/TiO2 were investigated with degrading methyl orange. It was showed that the target is degraded by immobilized PU/TiO2 with high activation and the catalytic performance is stable for a long time if catalyst is washed with ethanol.