Charge Coupling Enhanced Photocatalytic Activity of BaTiO/MoO Heterostructures.

In this work, we proposed an efficient heterostructure photocatalyst by integrating the ferroelectric BaTiO (BTO) layer with the semiconductor MoO layer, availing the ferroelectric polarization of BaTiO and high generation of photoinduced charge carriers in the MoO layer. The effect of MoO layer thickness () on the photocatalytic efficiency of the BTO/MoO heterostructures is found to be optimum at = 67 nm as varies from 40 to 800 nm. The BTO/MoO heterostructure with = 67 nm exhibits a high efficiency of 86% for the degradation of rhodamine B (RhB) under the exposure of UV-visible light for 60 min.