Fabrication and Cs removal performance of various metal-ferrocyanide functionalized magnetic adsorbents

A variety of cesium adsorbents, including zeolites, ammonium molybdophosphate (AMP), silicotitanate (CST), and metal-ferrocyanide were extensively investigated for their ability to remove radioactive cesium from water. Metal-ferrocyanide; such as iron ferrocyanide (prussian blue) is known as a low cost adsorbent which has a high selectivity for cesium and high stability for decomposition. In the present study, metal-ferrocyanide functionalized magnetic nanoclusters were fabricated for the removal of cesium and rapid magnetic separation of absorbent from contaminated water.In this study, we successfully fabricated metal- ferrocyanide modified magnetic nanoclusters (MFC- MNCs). The MFC-MNCs exhibited high removal efficiency of cesium in water and showed rapid magnetic separation of the adsorbents from the water after treatment. They have great potential for the treatment of liquid waste containing radioactive cesium (¹³⁷Cs). The magnetic adsorbents can be easily recovered once spread into an open environment