New Research on Innovative Electrode Material for Dissolved Ion Removal from Wastewater

RESURGENCE partners from the KTH Royal Institute of Technology have worked on the paper ”Microstructural engineering of high-entropy Prussian blue analogues for capacitive deionization of saline water” addressing the need for sustainable water treatment solutions, particularly for removing dissolved ions from wastewater without relying on additional chemicals.

Capacitive deionisation (CDI) has emerged as a promising technology to tackle this challenge. CDI operates by applying an electrical potential between electrodes, traditionally made from porous carbon, to effectively remove charged ions from water.

In this latest research, KTH scientists have enhanced CDI’s efficiency through high-entropy materials. By synthesizing hollow-concave high-entropy Prussian blue analogues and integrating them into CDI electrodes, they demonstrated significantly improved ion intercalation capabilities. This simple yet innovative process marks a substantial step forward in electrode performance.

With rising costs of chemical regeneration and waste neutralisation, industries are actively seeking sustainable alternatives to conventional ion exchange systems for producing high-purity water. The superior electrochemical and capacitor performance of the CDI system showcased in this research offers a promising solution, with potential for scalability in real-life applications. For more details, read the full study here.