Table 5.

Adsorption in the dark and photocatalytic degradation of MB⁺ and MO⁻ at different initial pH values

Dye	MB			MO
Initial pH	4	7	10	4	7	10
Ads.% in dark	null	null	10%	24%	5%	null
D% under vis	36%	80%	84%*	10%	10%	2%
Degradation amount (mg)	0.046	0.100	0.105	0.001	0.001	0.003
D% under UV	38%a 0.048	52% 0.065	76% 0.095	34% 0.043	35% 0.044	50%a 0.063

^aPhotolysis solely is in action