An insight into the improved capacitive deionization performance of activated carbon treated by sulfuric acid

Capacitive deionization (CDI) is a promising desalination technique that gains more and more attentions worldwide in recent years due to its high efficiency and feasibility. In this work, the sulfuric acid functionalized activated carbon (FAC) is proposed as electrode for CDI. By compared to pristine AC, FAC electrode shows an improved microspores volume from 0.17 to 0.22 m3 g−1 and therefore a high electrosorption capacity of 3.54 mg g−1 as...