Article ID Journal Published Year Pages File Type
4907589 Journal of Electroanalytical Chemistry 2017 23 Pages PDF
Abstract
Capacitive deionization (CDI) has been attracted great interest as an emerging desalination technology and the electrode materials play a critical role on improving CDI performance. In this work, nitrogen-enriched activated carbon fibers (AN-CFs) were prepared from the natural based silk cocoon through simple carbonization and CO2 activation. Their electrochemical and electrosorption behaviors were studied in NaCl solution. The results show that AN-CFs exhibit a fibri form porous structure with rich nitrogen element and CO2 activation enhances their specific surface area. Compared with unactivated nitrogen-enriched carbon fibers (196.05 F g− 1 at 1 mV s− 1, 12.02 mg g− 1 in 1000 mg l− 1 NaCl solution), AN-CFs exhibit more excellent capacitive (236.03 F g− 1) and CDI (16.56 mg g− 1) performances, showing that CO2 activation is proved to be an effective method to improve electrochemical and electrosorption performances and the AN-CFs should be a promising electrode material for CDI application.
Related Topics
Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
Authors
, , , ,