The fabrication of BiOCl(x)Br(1-x)/alumina composite films with highly exposed {001} facets and their superior photocatalytic activities.

We report the fabrication of thin films of bismuth oxyhalide solid solution with highly exposed {001} facets with the help of cetyltrimethylammonium bromide and aluminium oxyhydroxide. These {001} facet exposed films showed enhanced photocatalytic activities compared to those of randomly oriented facets.