Simultaneous photocatalytic removal of Cr(VI) and RhB over 2D MoS2/Red phosphorus heterostructure under visible light irradiation

Abstract A novel 2D MoS 2 /RP heterojunction photocatalyst with intimate interfacial contact was successfully fabricated for the first time. The photocatalytic activity of this nanocomposite was evaluated by the removal of the Cr(VI)-RhB coexistence system under visible light irradiation, to 72.7% for Cr(VI) and 97.5% for RhB simultaneously in 80 min. Photoelectrochemical analyses revealed that the MoS 2 /RP composite show an outstanding charge separation ability compared to the pristine RP, resulting in the enhanced photocatalytic activity. In particular, it can be considered as an efficient and meaningful nanocomposite building method, moreover, provides guidance to further design of photocatalyst toward various applications.