Journal
APPLIED SURFACE SCIENCE
Volume 258, Issue 24, Pages 9593-9598Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2012.05.154
Keywords
TiO2 nanotube; Silane coupling agents; Polyurethane membrane; Photocatalysis
Categories
Funding
- National Natural Science Foundation of China [20677012]
- Scientific Research Project of Guangdong Province [2009B090300342, 2009B030802045]
- Government Key Project of Water Pollution Controlling of China [2009ZX07211-005-03]
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TiO2 nanotubes have been synthesized by a hydrothermal method and their surface has been effectively modified with silane coupling agents. TiO2 nanotubes-polyurethane photocatalytic composites were then successfully synthesized through a series of activation reactions using polyurethane (PU) membrane as a solid carrier. All of these products have been characterized and identified by means of scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), and attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR). The results have shown that the TiO2 nanotubes treated by silicon alkylation could efficiently combine with the solid carrier (PU) and that the surface multilayer structure was very stable and compact. In addition, the new composite showed very good photocatalytic activity and was recyclable, which was demonstrated by the photocatalytic degradation of Rhodamine B. (C) 2012 Published by Elsevier B. V.
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