Abstract: The present invention relates to a metal collecting material formed of an organic polymer fiber base material into which a functional group having a metal adsorbing function is introduced, in which the metal collecting material has a nonwoven fabric form, an opening diameter of 10 to 300 ?m, an aperture ratio of 10 to 50%, a thickness of 10 to 500 ?m, and a weight per area of 5 to 25 g/m2, and a fiber diameter of the organic polymer fiber is 5 to 50 ?m.

Abstract: A renewable adsorbent enabling to adsorb cesium selectively and efficiently, and to reuse cesium by eluting adsorbed cesium, and its manufacturing method are provided. Polyethylene (PE)/polypropylene (PP) based non-woven fabric may be exposed with electron beam, PE/PP based non-woven fabric to which electron beam was exposed is contacted to the monomer solution containing acrylonitrile (AN), dimethyl sulfoxide (DMSO), Tween80 (polyoxyethylene sorbitan monooleate) as a surfactant, and AMP (ammonium molybdophosphate n-hydrate) as an inorganic ion exchanger, and then the inorganic ion exchanger (AMP) is supported directly by the non-ionic graft chain.

Abstract: A renewable adsorbent enabling to adsorb cesium selectively and efficiently, and to reuse cesium by eluting adsorbed cesium, and its manufacturing method are provided. Polyethylene (PE)/polypropylene (PP) based non-woven fabric may be exposed with electron beam, PE/PP based non-woven fabric to which electron beam was exposed is contacted to the monomer solution containing acrylonitrile (AN), dimethyl sulfoxide (DMSO), Tween80 (polyoxyethylene sorbitan monooleate) as a surfactant, and AMP (ammonium molybdophosphate n-hydrate) as an inorganic ion exchanger, and then the inorganic ion exchanger (AMP) is supported directly by the non-ionic graft chain.