Fig. 2. Dealing with illumination power and Arrhenius law.

a Chemical rate of ethylene epoxidation as a function of light irradiance fitted using a linear law, as reported in ref. ⁸. b Same experimental data fitted using the Arrhenius law, as pointed out in ref. ⁹⁴, also showing good agreement. c Ammonia production rate as a function of light irradiance, fitted using a linear law as reported in ref. ³⁶. d Same experimental data fitted using the Arrhenius law, also showing good agreement