2013 年 38 巻 2 号 p. 221-223
In this study, we demonstrate a facile method for the synthesis of mesoporous Au/silica composite particles. TEM images clearly reveal that the solvent evaporation of ethanol solution of F127, Au colloid particles, TEOS and HCl results in the synthesis of highly-ordered mesoporous composite particles. Diffuse reflectance UV-vis absorption spectrum of the obtained composite particles shows that Au colloid particles of the size of around 10 nm are present in the silica frameworks of the obtained composite particles. These results demonstrate that the particles obtained through a solvent evaporation process are mesoporous Au/silica composite particles with Au colloid particles incorporated in the silica frameworks.
