Molybdenum-Containing Catalysts Based on Porous Aromatic Frameworks as Catalysts of Oxidation of Sulfur-Containing Compounds

New molybdenum-containing catalysts based on PAF-30 mesoporous carbon material for oxidation of sulfur-containing compounds (SCs) in a model fuel were synthesized. The PAF-30 support was modified with functional groups containing a positively charged nitrogen atom with various substituents. The modified supports were studied by the methods of low-temperature nitrogen adsorption/desorption, IR spectroscopy, and elemental analysis. The major factors affecting the oxidation were considered: reaction temperature and time, oxidant amount, catalyst dosage, and kind of sulfur-containing substrate. For the Мо/PAF-30-NEt 3 catalyst, optimum conditions were found for oxidation of various classes of SCs in model mixtures: H 2 O 2 : S molar ratio 6 : 1, 60°С, 60 min. The Мо/PAF-30-NEt 3 catalyst operates in dibenzothiophene (DBT) oxidation during five cycles without appreciable activity loss.