You use UV irradiation in your degradation ?

Sarah Bouhadoun,  Yes  i will use UV (mercury lamp) and visible (tungsten halogen lamp) irradiation for degradation.

i think you can calculate efficiency like this :

number of degraded molécules/s per number of adsorbed photons/s

Sarah Bouhadoun..Thanks for your information. Can you please elaborate it? like how to measure number of absorbed photons?

1 photon = h*c/ landa. landa = your irradiation

so for X photons : irradiance light (W/cm²) * surface of the reactor (cm²)*landa (m) per h*c

Sarah Bouhadoun..Thanks for your help. I will try and inform you

you're welcome

you inform me if you have problm

thank you Sarah!!!!