EXTRACTION METHOD OF LANTHANOID ELEMENT OR ACTINOID ELEMENT, AND NANOSTRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a method and means for easily and efficiently separating and extracting a target metal from a metal dissolved solution that contains the target metal (in particular, lanthanoid element or actinoid element) and in which various metals are dissolved.SOLUTION: An extraction method of a lanthanoid element or an actinoid element includes: an adsorption step of bringing a nanostructure carrying a metal-adsorbent compound capable of selectively adsorbing a target metal in contact with a metal dissolved solution containing the target metal, and making the target metal in the solution being adsorbed to the metal-adsorbent compound; and a target metal separation step of bringing the nanostructure carrying the metal-adsorbent compound which has adsorbed the target metal through the adsorption step in contact with a back-extraction liquid, and moving the target metal adsorbed to the metal-adsorbent compound the back-extraction liquid.SELECTED DRAWING: Figure 1