Matrix Solar irradiation
DIZ SER
k (day-1) t1/2(day) k (day-1) t1/2(day)
Wastewater influent 0.018 38.3 0.100 6.9
Wastewater effluent 0.007a 102.1a [85]b 0.140 4.9
River water 0.007a 94.5a [85]b 0.100 6.9
Untreated water 0.007a 94.5a [85]b 0.067 10.3
Treated water 0.007a 94.4a [85]b 0.041a 16.8a [14]b
Methanol 0.009a 72.9 0.005a 129.0a [120]b
Ultrapure water pH 3 0.158 4.4 0.005a 127.5a [120]b
Ultrapure water pH 10 0.009a 73.5a [49]b 0.071 9.7
River water Xe-lamp irradiation
k (min-1) t1/2(min) k (min-1) t1/2(min)
0.001 540.2 0.009 76.5
aautocatalytic reaction
b ‘delay time’ duration
Table 1: Photodegradation rate constants (k) and half-lives (t1/2) of DIZ and SER in various matrices exposed to solar or Xe-lamp irradiation.