Capacitive Deionization Electrodes for Water Desalination and Ion Recovery
This community develops carbon-based and hybrid electrode materials to remove dissolved ions from water, primarily for desalinating brackish water and recovering specific metals from wastewater.
The research focuses heavily on porous carbon structures, including activated carbon, graphene oxide, and nitrogen-doped carbon nanotubes, which serve as the primary electrode media. A significant portion of the work addresses the selective removal of chloride ions and the design of hybrid capacitive systems that integrate redox-active materials like Prussian blue or metal-organic frameworks to enhance ion capture capacity. The recurring objective is to improve the efficiency and selectivity of these electrodes for treating brackish water and removing specific contaminants such as lead, ammonium, and silver from aqueous streams.
The community is most heavily concentrated in carbon research, accounting for 904 papers, and chlorine research, with 286 papers. It also includes 227 papers related to nitrogen, reflecting the frequent use of nitrogen-doped carbon materials.
The community comprises 1,796 papers, publishing most frequently in Desalination, Separation and Purification Technology, and Chemical Engineering Journal.
Recent work continues to refine electrode architectures, with new papers describing heterostructures of bismuth oxychloride and MXenes, dual-metal modulation in nickel-cobalt telluride systems, and nitrogen-engineered carbon electrodes for the selective recovery of silver and the removal of fluoride and ammonium.