Thirty nanometers-sized silica particles are achieved for
0.22 M TEOS at 20 C with the mass fraction equal to 1.32%, which
is 3.14 times of the highest results reported [18]. In addition, the
7.45% solid content of resulting suspension for 1.24 M TEOS at
5 C is about 1.85 times of maximum results of Wang et al. [18].
Table 2 presents the comparison on mass fraction between our
work and the highest results reported.
In our experiment, methanol, ethanol, and isopropanol are used
to compare and to observe the influence of the solvents on the particle size