Selectivity adsorption of sulfate by amino-modified activated carbon during capacitive deionization

Enhancing capacitive deionization for water desalination: the role of activated carbon in contaminant removal

“…107 In addressing the challenge of sulfate removal, recent research has demonstrated that activated carbon materials modified with amino groups exhibit significantly enhanced sulfate selectivity and adsorption capacity. 108 This modification is achieved through acid treatment to graft amino groups onto activated carbon. Consequently, the material can form a strong hydrogen bonding interaction with sulfate, hence providing a promising approach to selectively adsorb sulfate from water.…”