Amphiphilic catalysts based on onion-like carbon over magnetic iron oxide for petrochemical industry use

Composites formed by carbon over magnetite were synthesized by impregnating iron oxide with glycerine. The formation of onion-like carbon was found, presenting concentric turbostratic shells with interplanar spacing of approximately 0.32 nm. The composite presented spherical iron oxide particles with magnetic and amphiphilic properties, which is interesting for use as a catalyst in the petrochemical industry. The magnetic composite presented a high catalytic activity for oxidation of quinoline in the aqueous and mainly in the organic medium.