Urchin-like SnIn4S8 photocatalyst synthesized via microwave assisted method with durable photocatalytic performance under visible light

Urchin-like SnIn 4 S 8 (donated as SIS) photocatalysts were successfully prepared by a rapid and facile microwave assisted synthesis method. The surface morphology, the composition and structure together with the optical performance of SIS prepared at different reaction time were investigated. The results indicated SIS synthesized with 20 min (donated as SIS-20, same below) exhibited higher photocatalytic activity under visible light towards the degradation of RhodamineB than that of SIS-10, SIS-30 as well as SIS synthesized by solvothermal method, larger specific surface areas and lower band gap energy were found to contribute photocatalytic efficiency. Surprisingly, SIS-20 possessed durable stability and recyclability.