METHOD FOR PREPARING ORGANOSILICA HAVING FERROCYANIDE FIXED THERETO

摘要

The present invention relates to a method for preparing an organosilica having a ferrocyanide fixed thereto, and more specifically, to a method for preparing a cesium-selective absorbent by combining a powder-type ferrocyanide to silica into which an ethylenediamine functional group is introduced. To this end, the present invention synthesizes the organosilica by using dodecylamine, which is a nonionic surfactant, tetraethylorthoslicate (TEOS), and [3-(2-aminoethylamino)propyl]-trimethoxysilane, and then combines the ferrocyanide to the ethylenediamine functional group.