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Integrating FeOOH with bacterial cellulose-derived 3D carbon nanofiber aerogels for fast and stable capacitive deionization based on accelerating chloride insertion.
- Source :
-
Desalination . May2024, Vol. 576, pN.PAG-N.PAG. 1p. - Publication Year :
- 2024
-
Abstract
- Faradic capacitive deionization (FDI), as an emerging research branch of capacitive deionization (CDI), has shown its great potential to relieve global water stress owing to its high desalination capacity/efficiency, flexible scale, and zero secondary pollution characteristics. However, the slow desalination kinetics and poor cyclic stability of the anion-capturing electrode of current FDI systems greatly limit its practical application. Herein, we proposed a strategy of interweaving FeOOH nanospindle inside the 3D network structure of carbon nanofiber aerogel to construct a 3D network structure (CNFAs@FeOOH) and further used it as a chloride capture electrode for FDI. As a result, the FDI system equipped with CNFAs@FeOOH enjoys excellent desalination performance with an ultrahigh desalination rate of up to 0.33 mg g−1 s−1. More importantly, the CNFAs@FeOOH-based FDI system enjoys excellent cycling stability with no significant decrease in 100 cycles and only 17.85 % decrease in 200 cycles. Carbon nanofiber aerogel interweaved FeOOH was introduced as chloride-insertion electrodes for faradic capacitive deionization, achieving durable and fast desalination. [Display omitted] • Carbon nanofiber aerogel interweaved FeOOH (CNFAs@FeOOH) was used as the anode of faradic capacitive deionization (FDI). • The 3D network structure of CNFAs@FeOOH prevents aggregation between FeOOH and enables rapid charge/electron transfer. • The open porous structure of CNFAs@FeOOH allows flow-through water mode to accelerate mass transfer. • The CNFAs@FeOOH-based FDI system displays an ultrahigh desalination rate with excellent long-term stability. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00119164
- Volume :
- 576
- Database :
- Academic Search Index
- Journal :
- Desalination
- Publication Type :
- Academic Journal
- Accession number :
- 175637571
- Full Text :
- https://doi.org/10.1016/j.desal.2024.117329