Solar photothermal catalytic effect promotes carbonylation reaction based on palladium doped g-C3N4 catalyst

Abstract

Palladium catalyzed carbonylation reaction is used as an effective method in the industrial to prepare carbonyl-containing compounds. Besides, the complex ligands are needed to improve the yields and selectivity of reactions, which will increase the cost for production. Thus, it is very meaningful to build a simple and efficient catalytic system. Here, the graphitic carbon nitride (g-C3N4) nanosheets (ECN) doped with palladium metal (Pd/ECN) were prepared by microwave-assisted deposition method. The results indicated that the yield of methyl benzoate was 77 % based on Pd/ECN under the light irradiation with a wavelength of ≥ 400 nm, which was higher than that of the homogeneous catalysts and heterogeneous catalysts commonly used in commercialization such as palladium on activated charcoal (Pd/C) and palladium chloride (PdCl2).