1. Regeneration of carbon nanotube and nanofibre composite film electrode for electrical removal of cupric ions.
- Author
-
Yankun Zhan, Haibo Li, Likun Pan, Yanping Zhang, Yiwei Chen, and Zhuo Sun
- Subjects
CARBON nanotubes ,NANOFIBERS ,ANTHOLOGY films ,NANOTUBES ,ELECTRODES ,SHORT circuits ,SOLID freeform fabrication ,IONS ,ELECTROFORMING - Abstract
Low cost and large scale carbon nanotube and nanofibre (CNT-CNF) composite films have been fabricated and employed as electrodes for electrosorption of cupric ions. The regeneration of the saturated CNT-CNF film electrode has been investigated. Three methods (short-circuiting, short-circuiting and then reversing voltage, reversing voltage and then short-circuiting) are used for regeneration. The results show that low regeneration efficiency of CNT-CNF film electrode due to electrodeposition of Cu on the electrode surface can be highly improved by regeneration applying reverse voltage combined with short circuit. 93% regeneration efficiency can be achieved when 0.8 V reverse voltage is applied before short-circuiting during regeneration of CNT-CNF film electrode. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
- View/download PDF