Photocatalysis is a process to convert light energy into chemical energy. And photocatalysis has been widely implemented into various areas, such as energy storage and environmental remediation. In this work, we focused on photocatalytic oxidation of organic pollutants in water on a new composite, i.e. BN-Bi2MoO6. The result suggests BN nanosheets may be an excellent co-catalyst in boosting the photocatalytic activity of the substrate (Bi2MoO6) in the decomposition of organics in water under visible light. This work sheds a light on addressing the importance of two-dimensional materials to suppress the recombination of photogenerated charge carriers, therefore to improve the visible light-induced photocatalytic activity.