The role of carbon electrode parameters on capacitive deionization efficiency

Capacitive deionization (CDI) is an alternative promising desalination technology due to its environmen-tally friendly and cost-effective process. In this study, the effects of carbon electrode parameters, such as porous carbon layer thickness and water channel gap distance on CDI efficiency, were systematically evaluated in terms of salt adsorption capacity (SAC). In addition, kinetic salt adsorption rate was discussed. The study demonstrated that appropriate carbon layer thickness of electrode and gap distance between electrodes were crucial parameters for CDI cell fabrication to optimize the desalination performance.