Prussian blue-coated magnetic nanoparticles for removal of cesium from contaminated environment

Prussian blue non-woven filter for cesium removal from drinking water

“…Japanese soils had been contaminated by the 137 Radioactive fallout can lead to contaminated surface water and/or groundwater, eventually pollute the drinking water production chain (Smith et al, 2001). At two years after the Fukushima Disaster trace of radiocesium was still found in drinking water of many cities in Japan (NRA, 2013).…”

Sodium, rubidium and cesium ions adsorption by Prussian blue(PB)

“…Note that Prussian blue, which shows a high selectivity towards Cs + , can act as one of the most promising adsorbents for uptake of Cs + [4,5]. However, the mechanism of Cs + adsorption onto PB is still a controversial point as reported in the literatures [6][7][8][9]. Cesium is a group I alkali metal, and the alkali metal ions usually coexist under natural conditions due to their close similarity in physical and chemical characteristics [10,11].…”

Prussian blue (PB) granules for cesium (Cs) removal from drinking water

“…Since the half live of 137 Cs is much longer than 131 I [2], 1.8 Â 10 16 Bq 134 Cs and 1.5 Â 10 16 Bq 137 Cs residual radioactivity existed one year after the Fukushima Disaster [3]. The radioactive fallout contaminated drinking water in many Japanese cities [4].…”

“…Although efficient adsorbents have been synthesized, production costs are high [10][11][12][13][14][15]. Prussian blue (PB), a dark-blue pigment, has the formula Fe 7 (CN) 18 and a crystal cage size similar to the hydration radius of Cs + [2,16]. Pharmaceutical-grade PB has been administered to assist in the removal of Cs from humans after the Chernobyl disaster.…”