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. 2013 Jan 22;10(1):13. doi: 10.1186/1735-2746-10-13

Table 5.

Solar irradiation (average of 5 h), pH and maximum temperature attained for experimental runs at different pH values and TiO2 dose (corresponding of Figures 3and 5)

Concentration of TiO2(g/L) pH Initial pH value Final pH value Average solar irradiation (W/m2) Maximum temperature attained (°C)
Without TiO2
 Normal pH
 6.8
 7.32
 836
 49
2
 2
 2.05
 788
 44
4
 4
 4.13
 788
 46
6
 6
 6.31
 836
 50
8
 8
 7.15
 704
 34
10
 10
 9.02
 704
 38
With TiO2(0.5 g/L)
 Normal pH
 5.5
 6.9
 820
 47
2
 2
 2.1
 850
 48
4
 4
 4.05
 760
 42
6
 6
 6.1
 743
 37
8
 8
 5.72
 697
 36
10
 10
 6.45
 600
 33
TiO2(1 g/L)
 Normal pH
 5.87
 6.49
 664
 33
2
 2
 2.06
 850
 48
4
 4
 4.08
 760
 42
6
 6
 6.04
 743
 37
8
 8
 6.07
 697
 36
10
 10
 5.95
 600
 33
TiO2(1.5 g/L)
 Normal pH
 7.05
 6.8
 816
 38
2
 2
 2.09
 837
 32
4
 4
 4.06
 760
 42
6
 6
 6.06
 743
 37
8
 8
 5.85
 747
 39
10
 10
 6.33
 627
 33
TiO2(2 g/L)
 Normal pH
 7.05
 6.71
 664
 36
2
 2
 2.13
 837
 46
4
 4
 4.06
 760
 43
6
 6
 6.07
 743
 39
8
 8
 6.92
 747
 40
  10 10 6.22 627 36