Molecular Catalysis | 2019
Co2+ immobilized on highly ordered mesoporous graphitic carbon nitride (ompg-C3N4/Co2+) as an efficient and recyclable heterogeneous catalyst for one-pot tandem selective photo-oxidation/Knoevenagel condensation
Abstract
Abstract Design and synthesis of efficient heterogeneous photocatalysts is an important task for practical applications due to the increasing environmental challenges and energy crisis. In this work, Co 2+ modified highly ordered mesoporous graphitic carbon nitride (ompg-C 3 N 4 /Co 2+ ) was prepared through a simple procedure involving sonication treatment. The obtained catalyst was characterized using FT-IR, XRD, ICP-OES, FE-SEM, UV–vis DRS, N 2 adsorption-desorption, and TGA. It was found that the ompg-C 3 N 4 /Co 2+ can function as a multifunctional heterogeneous photocatalyst for the one-pot tandem selective photo-oxidation/ Knoevenagel condensation. More interestingly, the obtained ompg-C 3 N 4 /Co 2+ represented a high photocatalytic activity in benzyl alcohol oxidation without any oxidant under air atmosphere and visible light irradiation.