In accordance with our hypothesis, nitrobenzene was selected as the model substrate (1a) together with the Togni-I's reagent (2a) (𝐸 !/# = -0.45 V vs SCE in MeCN) as the trifluoromethylating reagent in the presence of Cu@f-gC3N4 (𝐸 !/# =-1.40 V vs SCE in MeCN) as a photocatalyst in MeCN. The resulting mixture was irradiated under 390 nm Kessil lamp for 3 hours by maintaining the reaction temperature to 30 °C.