Abstract

Capacitive deionization (CDI), as a novel, energy-efficient, and environment-friendly desalination technology, has received substantial attention in the scientific community during the last five decades, while the electrode materials, acting as the ion storage media, play a vital role during its desalination process. Meanwhile, developing electrode materials from biomass has been proven to be a feasible strategy due to their abundance in nature, unique microstructure, as well as feasibility for further modifications. In this review, various bio-mass-based electrode materials and their unique advantages as CDI electrodes are systematically presented.

Keywords: Capacitive deionization, electrosorption, desalination, bio-mass derived carbon, electrode material, activated carbon, water purification.