TiO₂:Ce_x onto Al Clays for Photocatalytic Solar Water Disinfection

Table 3

Photocatalytic degradation of E. coli using different catalysts. Each value has been obtained twice, and the average value is included. The obtained deviation of each set of the experimental values was about five percent.

		Cloi/TiCe0.5	2Cloi/TiCe0.5	Cloi/TiCe10	2Cloi/TiCe10	Photolysis
		1 g/l	1 g/l	1 g/l	1 g/l
	Time min	E. coli CFU/ml	E. coli CFU/ml	E. coli CFU/ml	E. coli CFU/ml	E. coli CFU/ml
Dark	0	17,000,000	17,000,000	17,000,000	1,7000,000	17,000,000
	30	4,400,000	5,900,000	4,400,000	5,000,000	17,000,000
Illumination	60	110,000	870,000	570,000	320,000	8,300,000
	90	100,000	550,000	620,000	520,000	4,000,000
	120	30,000	29,0000	410,000	250,000	2,500,000