Details

Autor(en) / Beteiligte

• Chamorro-Mena, Ignacio
• Linares, Noemi
• García-Martínez, Javier

Titel

Blue-LED activated photocatalytic hydrogenation of nitroarenes with CuO/CuO heterojunctions

Ist Teil von

• Dalton transactions : an international journal of inorganic chemistry, 2023-09, Vol.52 (37), p.1319-13198

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• This study describes how the optimization of Cu 2 O/CuO heterostructures can enhance their (photo)catalytic performance. More specifically, the evaluation of catalysts with different Cu 2 O/CuO molar ratios was used to optimize their performance for the hydrogenation of 4-nitrophenol under both blue-LED light and dark conditions. For the first time, we analyzed the effect of blue LED irradiation on this reaction and found that when blue LEDs are used as the light source, a Cu 2 O/CuO ratio of 0.15 results in rate constants 7 to 3 times higher than those of catalysts with either lower (0.01) or higher (0.42) ratios. Furthermore, this photocatalyst shows good stability, >70% after 5 cycles, and excellent chemoselectivity in the selective reduction of the nitro group in the presence of other functionalities, i.e. -COOH, -CONH 2 and -OH. This study describes how the optimization of Cu 2 O/CuO heterostructures can enhance their (photo)catalytic performance for the selective reduction of nitro groups.