Table 7.

The composition of the solution and the experimental parameters of the sol preparation.

Sample	Precursors	Molar Ratio			pH Sol	Experimental Conditions
		$\frac{\mathit{R}\mathit{O}\mathit{H}}{\mathit{\sum }\mathit{p}\mathit{r}\mathit{e}\mathit{c}\mathit{u}\mathit{r}\mathit{s}\mathit{o}\mathit{r}}$	$\frac{{\mathit{H}}_{\mathit{2}}\mathit{O}}{\mathit{\sum }\mathit{p}\mathit{r}\mathit{e}\mathit{c}\mathit{u}\mathit{r}\mathit{s}\mathit{o}\mathit{r}}$	$\frac{\mathit{c}\mathit{a}\mathit{t}\mathit{a}\mathit{l}\mathit{y}\mathit{s}\mathit{t}}{\mathit{\sum }\mathit{p}\mathit{r}\mathit{e}\mathit{c}\mathit{u}\mathit{r}\mathit{s}\mathit{o}\mathit{r}}$		T (°C)	t (h)
TiO2−Cu 2.0%	Ti(OC4H10)4 + Cu(NO3)2·3H2O	36.5	3	0.003	10	25	60
TiO2−Zn 2.0%	Ti(OC4H10)4 + Zn(NO3)2·6H2O	36.5	3	0.003	10	25	60

ROH = C₄H₉-OH.