Advances and Future Perspectives in Foam Material-Based Electrodes for Capacitive Deionization

Capacitive deionization (CDI) is a promising water treatment technology for removing ions from wastewater. The performance of the CDI System mainly depends on the electrode materials. Foam is also one of the significant materials used as a substrate in the preparation of electrodes for CDI. This mini-review covers the fundamentals of CDI, the importance of foam materials for electrode development, foam-based electrode preparation, characterization of methodologies used in foam electrode material, and a comparative tabulation of foam-based electrode performance. This review also discusses the future extent of the research scope of foam materials-based electrodes for CDI.