| abstract |
Provided is a manufacturing method for a core-shell-type porous silica particle, comprising: a preparation step for preparing an aqueous solution containing a non-porous silica particle, a cationic surfactant, a basic catalyst, a hydrophobic part-containing additive, and alcohol; a shell precursor formation step for adding a silica source to the aqueous solution to form a shell precursor on the surface of the non-porous silica particle; and a shell formation step for removing the hydrophobic part-containing additive and the cationic surfactant from the shell precursor to form a porous shell. |