Influence of Selected Alkoxysilanes on Dispersive Properties and Surface Chemistry of Titanium Dioxide and TiO₂–SiO₂ Composite Material

Table 4

The degree of surface coverage of TiO₂ and TiO₂–SiO₂ modified with selected modifying agent.

Sample	Modifying agent	Amount of modifying agent (wt./wt.)	Elemental analysis (%)			𝑁𝑅 (nm^−2)	𝑃 (𝜇mol/m^2)
			N	C	H
A11	—	—	—	0.024	0.014	—	—
	U-511 silane	0.5	—	0.216	0.117	1.83	1.81
		3	—	0.816	0.136	8.30	6.92
	U-611 silane	0.5	—	0.055	0.008	1.53	0.92
		3	—	0.173	0.012	5.90	2.90
	U-15D silane	0.5	0.068	0.181	0.032	4.03	2.17
		3	0.341	0.825	0.186	21.10	10.04
R001	—	—	—	0.207	0.173	—	—
	U-511 silane	0.5	—	0.392	0.166	3.44	2.35
		3	—	0.985	0.244	13.45	5.98
	U-611 silane	0.5	—	0.187	0.158	2.45	2.24
		3	—	0.363	0.166	4.91	4.36
	U-15D silane	0.5	0.061	0.270	0.166	4.11	2.31
		3	0.285	0.841	0.276	18.71	7.31
R213	—	—	—	0.162	0.440	—	—
	U-511 silane	0.5	—	0.400	0.440	1.14	0.96
		3	—	1.133	0.507	3.86	2.76
	U-611 silane	0.5	—	0.241	0.426	1.18	1.15
		3	—	0.366	0.430	1.95	1.75
	U-15D silane	0.5	0.072	0.315	0.450	1.58	1.08
		3	0.334	0.896	0.529	5.42	3.12
TP10	—	—	—	0.158	0.429	—	—
	U-511 silane	0.5	—	0.379	0.448	1.00	0.88
		3	—	1.045	0.512	3.23	2.47
	U-611 silane	0.5	—	0.235	0.412	1.10	1.09
		3	—	0.391	0.422	2.03	1.83
	U-15D silane	0.5	0.083	0.327	0.437	1.59	1.09
		3	0.356	0.905	0.541	5.26	3.07