Aerobic photoxidation of sulfides using unique hybrid polyoxometalate under visible light

Abstract

A unique hybrid Polyoxometalate was synthesized, which can absorb visible light and perform photocatalytic activity. This Organic-Inorganic hybrid material was synthesized through attaching the organotin compound to the vacant polyoxometalate. Interestingly, this hybridization brought an outstanding decrement in the polyoxometalate band gap and turned this hybrid polyoxometalate to a photocatalytic compound, which can conduct catalytic reactions under visible light. In this line, we devised photoxidation of sulfides using this photocatalyst and under O2 atmosphere as a sustainable and environmental friendly oxidant. Various kinds of sulfides were investigated under optimum reaction conditions and the corresponding sulfoxide products were synthesized in good to high yields.

Keywords

• Polyoxometalate
• Hybrid compounds
• Photocatalyst
• Aerobic oxidation
• Sulfide oxidation