pH

OD Untreated water

% Photocatalytic efficiency

%Photolytic efficiency (control)

2

0.64

73.43

6.40 %

4

0.32

44.58

0.96 %

6

0.25

29.68

0.43 %

8

0.34

62.59

9.56 %

10

0.30

46.13

2.47 %

12

0.15

24.38

5.81 %