[1+1] Copper(II) macrocyclic Schiff base complex on rGO as a photocatalyst for reduction of nitroaromatics compounds under visible-light irradiation

Saeed Nasiri Ghalebin , Abolfazl Bezaatpour , Moayad Hossaini Sadr , Mirabdullah Seyed Sadjadi , Mohammad Khodadadi Moghaddam , Sabine Szunerits (1, 2)

1 IEMN - Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520
2 NBI - IEMN - NanoBioInterfaces - IEMN

In this work, [1 + 1] macrocyclic Copper(II) Schiff base complex ([CuL](NO3)2.H2O) was synthesized and grafted on reduced graphene oxide successfully. The novel prepared sample was characterized by physico-chemical techniques and used as a photocatalyst for the reduction of nitroaromatic compounds to their amine derivatives at room temperature under visible-light irradiation with hydrazine mono hydrate. From the prepared samples, reduced graphene oxide loaded with 30% [CuL](NO3)2.H2O catalyst (rGO/CuM30) shows the best efficiency for converting different nitroaromatic compounds to the corresponding amino compounds using visible light. As-prepared catalyst illustrated excellent activity for the reduction of 2-nitrophenol to 2-aminophenol (100% conversion) in only 90 min. Finally, the catalyst could be recovered for five times and reused without decreasing of its efficiency.

Mots clés: Schiff base; Reduced graphene oxide; Macrocyclic cu complex; Nitroaromatic

Domaines: Chimie

Saeed Nasiri Ghalebin, Abolfazl Bezaatpour, Moayad Hossaini Sadr, Mirabdullah Seyed Sadjadi, Mohammad Khodadadi Moghaddam, et al.. [1+1] Copper(II) macrocyclic Schiff base complex on rGO as a photocatalyst for reduction of nitroaromatics compounds under visible-light irradiation. Journal of Molecular Liquids, 2021, 328, pp.115338. ⟨10.1016/j.molliq.2021.115338⟩. ⟨hal-03127694⟩