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.