Na0.5Ce0.5MoO4 as a new light absorption material to efficiently degrade RhB under visible light irradiation

摘要

It still remains a big challenge to develop an efficient visible light responsive photocatalyst for the full utilization of solar energy. In this work, Na _(0.5) Ce _(0.5) MoO _(4) has been developed as a new, high visible light absorption medium and a high electron-conducting material. It has greatly improved the visible light absorbance and the charge separation and transfer rates of the Na _(0.5) Ce _(0.5) MoO _(4) /MoO _(3) heterojunction. Amazingly, the activity of Na _(0.5) Ce _(0.5) MoO _(4) (10%)/MoO _(3) is 6.4 times higher than that of MoO _(3) for the photodegradation of RhB under visible light irradiation ( λ ≥ 420 nm). We expect that Na _(0.5) Ce _(0.5) MoO _(4) could be applied to prepare other excellent visible light heterojunction photocatalysts to fully utilize solar energy.