Uniform Fe2O3 nanocubes on BiOCl nanosheets and its improved photocatalytic activity.

The x Fe 2 O 3 / y BiOCl ( x/y , molar ratio) composites are prepared via a facile hydrothermal process, in which the uniform Fe 2 O 3 nanocubes are well deposited on the BiOCl nanosheets. The x Fe 2 O 3 / y BiOCl shows much higher activities than BiOCl or Fe 2 O 3 for the degradation of rhodamine B (RhB) and methyl orange (MO). Specifically, the degradation rate of the 5Fe 2 O 3 /100BiOCl catalyst is 7.2 and 3.7 times as high as those of the bare BiOCl for MO and RhB, respectively. This has been mainly attributed to the formation of p/n Fe 2 O 3 /BiOCl heterojunctions. [ABSTRACT FROM AUTHOR]