| abstract |
Disclosed is a method for separating cation, anion, ion and / or molecule from a solution, particularly effective for separating selenium. A magnetic nanoparticle is made of a material including a superparamagnetic iron oxide nanoparticle having a diameter of 1 to 500 nm and functionalized with an active substance on the surface, and a solution is brought into contact with the magnetic nanoparticle to bring the magnetic nanoparticle and the target molecule into contact with each other. After the complex is formed, the target molecule, particularly selenium, is extracted from the solution by an external magnetic field, and desorbs the target molecule from the complex of the magnetic nanoparticle and the target molecule by washing the complex of the magnetic nanoparticle and the target molecule. How to separate and remove. [Selection] Figure 1 |