Template synthesis of polyaniline/TiO₂ bilayer microtubes

详细信息	查看全文 | 推荐本文 |

• 作者：Xiong ; Shanxin ; Wang ; Qi ; Xia ; Hesheng
• 关键词：Template synthesis ; Microtubes ; Polyaniline (PANI) ; Titanium dioxide (TiO₂) ; Photocatalysis
• 刊名：Synthetic Metals
• 出版年：2004
• 期刊代码：77_03796779
• 类别：ph
• 出版时间：October 14, 2004
• 卷：146
• 期：1
• 页码：37-42
• 文件大小：363 K

摘要

In this article, highly ordered PANI/TiO₂ bilayer microtubes were prepared with two-step method. Firstly, anodic aluminum oxide (AAO) membrane with regular channel structure was chosen as the template, the PANI microtubes were synthesized in the channels of template by in situ polymerization. Secondly, the TiO₂ microtubes were synthesized with sol–gel method in the channels of PANI microtubes. The structure and morphology of PANI/TiO₂ bilayer microtubes were characterized by SEM, energy dispersive spectroscopy (EDS), TEM, and UV–vis. The results showed that the bilayer microtubes were successfully synthesized in the microchannels of template, the diameter and length of microtubes were closed to the pore diameter and thickness of AAO template, respectively, the arrangement of bilayer microtubes was very regular and uniform, also, a bilayer structure was found. UV–vis spectra confirmed that the photocatalysis property of PANI/TiO₂ bilayer microtubes in sunlight was better than that of TiO₂ microtubes, due to the existence of sensitizer, PANI.