Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 598, Issue -, Pages 511-518Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2021.04.051
Keywords
Na-3(VO)(2)(PO4)(2)F nanocuboid; Graphene; Faradic electrode; NASICON; Desalination
Categories
Funding
- National Natural Science Foundation of China [21777118]
Ask authors/readers for more resources
The hybrid capacitive deionization (HCDI) using modified NASICON material shows superior desalination performance, with high deionization capacity, low energy consumption, and excellent energy recovery rate.
Capacitive deionization (CDI) is considered as a promising desalination technology due to its low energy consumption and no two-second pollution. But the development of traditional CDI is limited by its two drawbacks, which are low deionization capacity and unavoidable parasitic reactions. Hybrid capacitive deionization (HCDI), which is composed of a faradic electrode and an electrical-double-layer electrode, effectively solves the above problem. Herein, we report a typical NASICON material Na-3(VO)(2)(PO4)(2)F and modify it with rGO, then apply it in HCDI firstly and receive a superior desalination performance. Five samples are prepared by adding different contents GO solution and we choose the best one (NVOPF-4) with the lowest resistance for the desalination tests according to electrochemical performance. The result of desalination shows a high desalination capacity of 175.94 mg.g(-1), low energy consumption of 0.35 kWh.kg-NaCl-1, and the energy recovery is 20% at a current density of 25 mg.g(-1). NVOPF@rGO displays a promising ability for desalination in capacitive deionization, further confirming NASICON be a suitable material type for HCDI electrode materials. (C) 2021 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available