A nickel nanoparticle engineered CoFe 2 O 4 /SiO 2 –NH 2 @carboxamide composite as a novel scaffold for the oxidation of sulfides and oxidative coupling of thiols

) as a green oxidant. The easy separation, simple workup, excellent stability of the nanocatalyst, short reaction times, non-explosive materials as well as appropriate yields of the products are some outstanding advantages of this protocol.