Synthesis of 伪-Fe₂O₃/TiO₂ nanotube arrays for photoelectro-Fenton degradation of phenol

详细信息	查看全文 | 推荐本文 |

• 作者：Yanqing Cong ; ^{yqcong@yahoo.cn} ; Zhe Li ; Yi Zhang ; Qi Wang ; Qian Xu
• 关键词：伪-Fe2O3/TiO2 nanotubes ; 伪-Fe2O3 nanoparticles ; Photoelectro-Fenton ; Visible light ; Phenol degradation
• 刊名：Chemical Engineering Journal
• 出版年：2012
• 期刊代码：16_13858947
• 类别：ce
• 出版时间：15 May, 2012
• 卷：191
• 期：Complete
• 页码：356-363
• 文件大小：1398 K

摘要

Developing new nanophotocatalysts and identifying their roles are highly attractive in environmental protection and energy utilization. Photoelectro-Fenton process is an environmentally friendly technology and has a wide application in the control of environmental pollutants. However, efficient nanophotocatalysts responsive to visible light are still few. In this work, we have successfully synthesized a uniformly dispersed 伪-Fe₂O₃/TiO₂ nanotubes hetero-nanostructure by electrochemical deposition method for the degradation of phenol. Compared with the separate 伪-Fe₂O₃ nanoparticles and TiO₂ nanotubes, the composite 伪-Fe₂O₃/TiO₂ nanotubes electrodes were more effective in the photoelectro-Fenton degradation of phenol and a 100%removal efficiency of phenol was obtained after 60 min treatment. The composite 伪-Fe₂O₃/TiO₂ electrodes showed an enhanced absorbance in visible light region and had good stability to photoelectro-Fenton reactions. The role of 伪-Fe₂O₃ nanoparticles in various Fenton-related processes were systematically investigated. The results indicate that 伪-Fe₂O₃/TiO₂ nanotubes are promising material for pollution prevention.