Prussian blue immobilized on covalent organic polymer-grafted granular activated carbon for cesium adsorption from water

Technologies for removing radioactive waste in the form of 137Cs, released during nuclear power plant accidents, are essential. Prussian blue (PB) is a pigment with a face-centered cubic structure that can selectively adsorb cesium. However, due to its very small size (5–200 nm), PB can be found in water as a fine powder and it is difficult to separate its disposal to the water system. Thus, in this study, PB was immobilized on granular...