HOLLOW SILLICA SPHERES SYNTHETIC METHOD USING OF SURFACTANT

摘要

The present invention relates to a method for synthesizing a hollow nano-silica material using a surfactant, comprising: (a) a step of adding hydrochloric acid (HCl) in an aqueous ethanol solution; (b) a step of adding a surfactant to the HCl-added solution and making the solution react at room temperature; (c) a step of adding tetraethylorthosilcate (TEOS) to the solution and making the solution react at room temperature; (d) a step of adding ammonia water to the solution; (e) a step of obtaining precipitate followed by washing and drying the precipitate; and (f) a step of plasticizing the dried precipitate. The present invention uses critical micelle concentration of the surfactant to easily adjust the surfactant in a core producing process, and the surfactant can be easily removed at relatively low temperatures when removed, thereby easily producing a hollow nano-silica material with a simple process. In addition, the micelle structure used in the present invention can be adjustable into a molecular size of the surfactant, thereby adjusting the size of a core material 100 nm or less.