Modification of Ceramic Membranes by Silica Nanoparticles with Thiourea Functions

Table 1

Functionalizing membrane supports with thiourea groups.

Sample	Sol/EtOH ratio	Volume of deposited sol (mL)	∆m (g)	MD (μg/cm^2)	Thiourea groups content (theor.) (mmol/g)
TU1	1/4	0.025	0.0014	335	2.65
TU2	1/8	0.025	0.0017	410	2.65
TU3	1/8	0.025	0.0006	145	2.65
TU4	1/8	0.025	0.0099	2385	2.65
TU5	1/8	0.010	0.0013	315	2.65
TU6	1/8	0.025	0.0022	530	2.65
TUt	1/2	15	0.4529	8876	2.65

Millipore Swinnex filter holder was used for sol deposition.